Here's a recap of today's main events. Join us tomorrow for more live Olympic action.
+ Eight badminton players were disqualified from the Olympics after a scandal over "throwing" matches. Womens pairs from China, Indonesia and South Korea are accused of trying to lose matches in the round robin phase to manipulate the knockout draw.
+ Tour de France winner Bradley Wiggins won Britain's second gold of the Games, becoming Britain's most decorated Olympian. Rowers Helen Glover and Heather Stanning earlier gave the host nation its first gold, in the women's pairs.
+ In the pool, Nathan Adrian of the United States beat James Magnussen of Australia by a fingertip to win the 100m freestyle. World records were set by Hungarian Daniel Gyurta in the men's 200m breaststroke and Rebecca Soni in the women's 200m breaststroke.
+ The day ends with China at the top of the medal table, ahead of the USA in second and third placed South Korea.
2206 GMT: We'll be wrapping up the live report in a few moments but will leave you with our PHOTO OF THE DAY -- the explosion of joy on the face of USA's Nathan Adrian after winning the blue riband 100m freestyle gold.
And our TWEET OF THE DAY is from British PM David Cameron in praise of time trial winner Bradley Wiggins and his teammate Chris Froome who took gold. The official Downing Street Twitter account, @Number10gov, posted this: "@bradwiggins is a true British hero. First the Tour & now Olympic Gold. @chrisfroome great too. A wonderful day for @TeamGB #timetrial."
2153 GMT: BOXING: Japan have appealed against Satoshi Shimizu's defeat by Azeri Magomed Abdulhamidov in a bantamweight second round contest today -- met with disbelief from the 10,000 strong crowd at London's Excel Arena.
Governing body AIBA (the International Amateur Boxing Association) says the appeal will be heard after the final bout of the session.
2148 GMT: SWIMMING: More from AFP's Rob Smith on Nathan Adrian's thrilling win over Australia's James "The Missile" Magnussen in the 100m freestyle. He says: "Adrian becomes the first American winner of the 100m freestyle at the Olympics since Matt Biondi 24 years ago.
"An interesting sidelight is that Adrian wasn't even born when Biondi won gold in Seoul in 1988."
2144 GMT: TENNIS: In tennis news from earlier (we were immersed in the swimming at the time), Indian duo Leander Paes and Vishnu Vardhan have been knocked out of the doubles competition after a 7-6 (7/3), 4-6, 6-3 defeat against Jo-Wilfried Tsonga and Michael Llodra of France.
India's only remaining tennis medal hope is the mixed doubles pair Paes and Sania Mirza, who kick off their campaign on Thursday.
2139 GMT: GYMNASTICS: A second doping sample provided by Uzbek gymnast Luiza Galiulina has tested positive for traces of the banned diuretic furosemide, the International Olympic Committee (IOC) says.
Galiulina was provisionally suspended by the IOC on Sunday after a July 25 urine sample was found to contain the banned substance. She was suspended following the results, although had already been eliminated from the competition.
2133 GMT: CYCLING: The Twittersphere is still going crazy for Britain's Bradley Wiggins after his win in the men's time trial..."The only way Bradley Wiggins isn't going to win Sports Personality of the year is if the Queen turns up at the 100m and beats Usain Bolt," tweets Tom Bellingham @TommyB89.
2126 GMT: Meanwhile USA superstar Michael Phelps says returning to the pool tonight for the men's 200m individual medley semi-final "was a tough turn around" after earning a 200m butterfly silver and 4x200m free relay gold on Tuesday.
"I am just trying to stay in the middle of the pool from now on," says Phelps after being beaten in the medley by teammate Ryan Lochte, adding: "Ryan and I love racing each other. Neither one likes to lose. I like to say we bring the best out of one another."
2121 GMT: SWIMMING: British backstroke specialist Liam Tancock missed out on a podium position yesterday, finishing fifth in the men's 100m, but it didn't stop him enjoying the action tonight. He tweets: "What an amazing night at the #London2012 Aquatics Centre! I love watching FAST Swimming! :-)".
2115 GMT: BOXING: British bantamweight gold medal fancy Luke Campbell is through to the quarter-finals after defeating Jahyn Parrinello of Italy in a bout watched by former world heavyweight champion Lennox Lewis.
"I was told just before I went into the arena that Lennox Lewis was up there watching me. I thought 'Wow' Lennox Lewis come to see me!" said Campbell, who was also watched by ex-heavyweight champion Evander Holyfield.
"It didn't exactly help my nerves," he added.
2109 GMT: SWIMMING Chinese world champion Jiao Liuyang, who won gold in the women's 200m butterfly final earlier with an Olympic record time of 2:04.06, admits she had "thought about giving up".
"The most difficult time for me was in 2009," she says. "I wasn't in my best condition, mentally I wasn't that strong and I didn't always agree with my coach, so I had to change my technique.
"Four years ago (in Beijing final) I tried to catch Liu Zige but I failed, this time I was able to catch her. That was the difference."
2103 GMT: FOOTBALL: Great Britain are through to the quarter finals of the men's competition after beating Uruguay 1-0 in the last of today's semi-final matches. Earlier this evening Mexico beat Switzerland 1-0.
The full line-up for Saturday's quarter finals is: Japan v Egypt (1100GMT); Mexico v Senegal (1300GMT); Brazil v Honduras (1600GMT); Great Britain v South Korea (1830GMT).
2055 GMT: In case you're just joining us, the eight players embroiled in that badminton "match throwing" scandal were disqualified earlier but face no further penalties.
China's top men's player Lin Dan condemned the decision, saying "ultimately the wrong is not with the athletes," though agreed that what had happened was "not just a loss for the spectators but for the sport itself".
2052 GMT: BADMINTON: Malaysia's Lee Chong Wei ignored the crisis engulfing Olympic Games badminton to reach the men's singles quarter-finals.
Competing for the first time since injuring an ankle 10 weeks ago, he looked confident as he defeated ninth-seeded Indonesian Simon Santoso 21-12, 21-7.
2047 GMT: TENNIS: Japan's Kei Nishikori shocks Spanish fourth seed David Ferrer 6-0, 3-6, 6-4 in the third round, setting up a clash with eighth seed Juan Martin del Potro in Thursday's quarter-finals.
With the light fading as Nishikori led 5-4 in the final set, the match was moved to the floodlit centre court where Ferrer served a double-fault to give Nishikori a 30-15 lead.
2040 GMT: That's the last of the events in the aquatics centre tonight. In other news, a man has been killed after his bicycle was involved in a collision with an Olympics shuttle bus near the site of the Games.
An AFP reporter saw a man's legs protruding from under the double decker bus on a slip road outside the Olympic Park and his mangled racing bicycle lay nearby.
2033 GMT: Australia's James Magnussen looks decidedly less happy on that 100m freestyle podium where he collects silver.
Reacting to the race, he says: "I did my best and it wasn't quite good enough. I have felt a bit disappointed in the last few days, it has been a tough Olympics."
2028 GMT: American Nathan Adrian, who earlier touched out Australia's world champion James Magnussen to win gold in the 100m freestyle final, has a hug grin on his face as he collects his medal.
Earlier he shrugged off his success saying: "I have big hands, I guess!" But then added: "I had to swim my race, it's difficult with a guy next to you who is coming home in low 24 (secs) next to you. The second 50 (metres) was nerve-wracking."
2023 GMT: "The Americans swam an Olympic record to dethrone defending champions Australia in a terrific women's 4x200m freestyle relay final," reports AFP's Rob Smith.
"Anchored by Olympic 200m freestyle champion Allison Schmitt, the United States clocked 7:42.92 to win gold. It's America's fourth win in the five times the women's 4x200m freestyle relay has been held at the Olympics."
2017 GMT: USA WINS GOLD IN WOMEN'S 4X200M FREESTYLE RELAY. Australia takes silver, France claims bronze.
2014 GMT: Australia and USA women's teams now battling it out in the 4x200m freestyle relay for first and second place...
2009 GMT: Rob Smith brings us more details on the 200m medley semi-finals: "Lochte goes into the 200m medley final as the leading qualifier ahead of Hungary's Laszlo Cseh and Phelps.
"Phelps was returning to the pool a day after a 200m butterfly silver and relay gold gave him a record 19 career Olympic medals."
2000 GMT: The women's 200m butterfly medal winners are on the podium now, receiving their medals from ex-Olympic swimming champion Alexander Popov, seen as one of the greatest sprint freestyle swimmers of all time.
Jiao Liuyang smiles broadly as she waves to a sizeable contingent of Chinese flag-wavers in the crowd, then wells up as the national anthem plays. This followed by big hugs and kisses on the podium.
1954 GMT: SOUTH KOREA'S KIM JIYEON WINS WOMEN'S SABRE FENCING GOLD. She defeated Russia's Sofya Velikaya 15-9.
Olga Kharlan of Ukraine won bronze with a surprise win over America's double champion Mariel Zagunis.
1950 GMT: "World champion Ryan Lochte has beaten defending champion Michael Phelps in their head-to-head duel in the semis of the men's 200m individual medley," reports Rob Smith.
"Lochte beat Phelps by almost a second in 1:56.13 to take the psychological advantage into Thursday's final."
Britain's James Goddard came in third in that first semi, with the second getting under way now.
1945 GMT: Defending champion Soni's world record is the second set in the pool tonight in another night of stunning performances.
"The American carved 12-hundredths of a second off Canada's Annamay Pierse's world mark to set a new record at 2:20.00secs and zoom into Thursday's final," reports Rob Smith.
"Denmark's Rikke Pedersen was second fastest into the final ahead of Japan's Satomi Suzuki."
1900 GMT: SWIMMING: Back at the aquatics centre, America's Rebecca Soni sets a WORLD RECORD in the 200m breaststroke semi-final with a time of 2:20:00.
1936 GMT: BOXING: Swimming's the big medal event tonight but in action elsewhere, AFP's Charles Irwin is following the boxing. He says: "For the evening boxing session there's a heavyweight presence with former world champions Lennox Lewis and Evander Holyfield there.
"Both enjoyed differing Olympic experiences; Holyfield -- who infamously had part of an ear bitten off by Mike Tyson in a world title fight -- was part of arguably the greatest US boxing squad of all time but failed to win gold, settling for bronze after a controversial semi-final disqualification.
"Lewis by contrast won gold in 1988 though confusingly for Canada as he was to go on and profess himself to be British when he turned pro."
1930 GMT: More on that thrilling race from Rob Smith: "American Nathan Adrian has beaten world champion James Magnussen by one-hundredth of a second to win the men's 100m freestyle gold medal.
"Adrian won in a finger-tip finish from the Australian in 47.52secs with Canada's Brent Hayden third in 47.80secs."
1927 GMT: USA'S NATHAN ADRIAN WINS MEN'S 100M FREESTYLE FINAL. Australia's James Magnussen takes silver, with bronze going to Canada's Brent Hayden
1924 GMT: Rob Smith reports: "China's world champion Jiao Liuyang has set an Olympic record in winning the women's 200m butterfly final.
"Jiao, a silver medallist in the event at Beijing four years ago, clocked 2:04.06secs to win the gold medal from Spain's world silver medallist Mireia Belmonte Garcia and Japan's Natsumi Hoshi."
1920 GMT: CHINA'S JIAO WINS 200M BUTTERFLY GOLD. Spain's Mireia Belmonte Garcia takes the silver, and Natsumi Hoshi of Japan gets bronze.
1915 GMT: Hungary's Gyurta, on his world record-breaking win in the 200m breaststroke, says: "It was a really hard race, in the last 20m I saw Jamieson, he was so fast in the last part. It was hard for me, but I managed to do it.
"I can't believe it, it was my dream when I was young (to get the medal and the world record)."
Japan's Kosuke Kitajima, going for a third straight Olympic title, was shut out of the medals in fourth place in that race.
1910 GMT: More details from Rob Smith on the 200m backstroke semi finals: "Tyler Clary was quicker than his world champion teammate Ryan Lochte in the semi-finals of the men's 200m backstroke.
"Clary clocked 1:54.71 ahead of Lochte's 1:55.40 in an expected American fight for the gold medal in Thursday's final.
"China's Zhang Fenglin was third-fastest ahead of Japan's Ryosuke Irie."
1905 GMT: SWIMMING: Britain's Michael Jamieson who just took silver in the men's 200m breaststroke final says: "It was so much easier to swim tonight with a bit of confidence back.
"I've received so many messages of support and I was desperate to get on the podium to thank everyone for their support."
1900 GMT: HOCKEY: A quick round-up of today's men's field hockey: Spain 0-Australia 5; South Africa 2-Great Britain 2; Pakistan 1-Argentina 0; Belgium 1-Netherlands 3; New Zealand 3-India 1
1855 GMT: World champion Ryan Lochte of America wins the first of the 200m men's backstroke semis in a time of 1:55.40, ahead of Japan's Ryosuke Irie (1:55.68) and Poland's Radoslaw Kawecki (1:56.74).
1850 GMT: As always the races come thick and fast. Rob Smith sums up the women's 100m freestyle semi-finals: " Dutch speedster Ranomi Kromowidjojo has set an Olympic record as the fastest qualifier into the women's 100m freestyle final.
"Kromowidjojo won the second heat in 53.05secs to get lane four in Thursday's final ahead of Australia's Melanie Schlanger and American teenager Missy Franklin."
1844 GMT: Britain's Michael Jamieson came in just a fraction of a second behind Gyurta in that 200m breaststroke final with a time of 2:07.43.
Two-time world and European champion Gyurta broke the record of 2:07.31 set by Australian Christian Sprenger on July 30 2009 at the world championships in Rome.
1839 GMT: "The noise inside the Aquatics Centre was deafening as Jamieson challenged Gyurta down the final lap but the Hungarian held to win in 2:07.28," reports Rob Smith, adding that Gyurta's is the fourth world record of the swimming competition.
Two-time event champion Kosuke Kitajima of Japan came fourth.
1835 GMT HUNGARY'S DANIEL GYURTA WINS 200M BREASTSTROKE GOLD and sets world record. Britain's Michael Jamieson takes silver, Japan's Ryo Tateishi gets bronze.
1833 GMT: First up, the men's 200m breaststroke final. In the semis Britain's Michael Jamieson got the fastest time of 2:08.20 ahead of Hungary's Daniel Gyurta (2:08.32) and fellow Briton Andrew Willis (2:08.47).
1828 GMT: More on the swimming line-up from Rob Smith: "There's a two-pronged Chinese challenge in the women's 200m butterfly with Jiao Liuyang and defending champion Liu Zige.
"And the night will finish with Australia, United States and Canada going after the gold medal in the women's 4x200 freestyle final."
1823 GMT: SWIMMING: "A terrific night in the swimming coming up shortly with American superstars Michael Phelps and Ryan Lochte going head-to-head in a semi-final of the 200m medley and Australia's world champion James 'The Missile' Magnussen chasing the Olympic 100m freestyle crown," reports AFP's man in the aquatics centre, Rob Smith.
"Great Britain have two strong medal chances in the final of the men's 200m breaststroke final with Michael Jamieson and Andrew Willis, while Japan's Kosuke Kitajima is going after his third straight title in the same event."
1818 GMT: FOOTBALL: Brazil overpower New Zealand 3-0 at Newcastle's St James' Park to ease into the quarter-finals of the men's tournament. This was despite Porto star Alex Sandro being sent off.
Great Britain meet Uruguay tonight at 1845 GMT at Cardiff's Millenium Stadium, while Mexico are currently playing Switzerland. We'll bring you the results as they come.
1812 GMT: BADMINTON: More details on that badminton scandal where eight female players have been disqualified, accused of deliberately playing badly to fix the draw for the knockout stage.
The players are China's Yu Yang and her new partner Wang Xiaoli, two South Korean pairs, Ha Jung-Eun and Kim Min-Jung, Jung Kyung-Eun and Kim Ha-Na, and Indonesians Meiliana Jauhari and Greysia Polii. They will suffer no further punishments, fines or bans, nor will there be any punishments based on claims of coaches or national associations being involved.
1801 GMT: TENNIS: Swiss duo Roger Federer and Stanislas Wawrinka have failed in their bid to retain their Olympic doubles titles in a shock defeat by Israel's Jonathan Erlich and Andy Ram. Despite losing the first set, the unfancied Israelis bounced back to win 1-6, 7-6 (7/5), 6-3.
Federer can at least take consolation from reaching the quarter-finals of the singles earlier when he beat Uzbekistan's Denis Istomin.
1756 GMT: Japanese superstar Kohei Uchimura romped to the individual all-around gymnastics title to claim his first Olympic gold medal.
Germany's Marcel Nguyen took the silver medal, with Danell Leyva of the United States winning the bronze.
1752 And he's done it... UCHIMURA WINS MEN'S INDIVIDUAL GYMNASTICS GOLD.
1747 GMT: Next up, it's Kohei Uchimura on the floor. Tom Williams says of his performance: "Little stumble on second pass. But he can't be caught now. Finishes routine and breaks into broad grin."
He scores 15.100 which Tom says is "not his best score on the floor, but it's more than enough for the title."
1740 GMT: GYMNASTICS:Oh dear, it's not going well in the men's final for Japan's Yusuke Tanaka, who has followed up a poor floor routine finish with a fall from the pommel horse. Judges give him 13.433.
1736 TENNIS: Britain's Andy Murray survives a good fight from Cyprus's Marcos Baghdatis to reach the quarter-finals with a 4-6, 6-1, 6-4 win.
In windy conditions, Murray looked in danger of a shock defeat as he was out-played in the first set. But the world number four found enough momentum to edge through to a last eight clash with Spanish 11th seed Nicolas Almagro.
1731 GMT: GYMNASTICS: Japan's Uchimura on the high bar at the men's individual final reports Tom Williams. Covering the event via Twitter, he writes: "Little bit untidy in places, but he sticks the dismount. He's one rotation away from a maiden Olympic title."
Then: "Uchimura 1.616 points above Tanaka ahead of the final exercise, on the floor. Can't see him losing it from here."
Earlier Japan's Yusuke Tanaka scored a disappointing 14.166 for his floor routine after sitting down at the end of a tumbling pass.
1725 GMT: TENNIS: In the men's tournament today Novak Djokovic defeated Australia's Lleyton Hewitt 4-6, 7-5, 6-1 in the third round but it was no easy ride.
Djokovic was pushed to the brink in a gruelling clash before overpowering Hewitt in one hour and 56 minutes to set up a last eight clash with French fifth seed Jo-Wilfried Tsonga. He said of his challenger afterwards: "I have a lot of respect for him. He's a great competitor."
1720 GMT: GYMNASTICS: Back at the men's individual final , a tumble on the vault by Britain's Kristian Thomas was followed by a fall from his compatriot Daniel Purvis from the parallel bars, Tom Williams reports.
A crowd-pleasing high bar routine from Germany's Marcel Nguyen puts him in a good position fo at least bronze, with a score of 15.200.
"Eye-catching stuff from Uchimura on the parallel bars, reports Tom of the Japanese world champion. "Little hop on landing. 15.325 the score and he remains on top. High bar next."
1713 GMT: In more tennis news, world number one Victoria Azarenka advances to the quarter-finals with a 7-6 (8/6), 6-4 win over Russian 16th seed Nadia Petrova.
Belarus's Azarenka saw off Petrova in one hour and 54 minutes in a hard-fought clash at the All England Club.
1708 GMT: TENNIS: Venus Williams crashes out of the Olympics as German seventh seed Angelique Kerber clinches a surprise 7-6 (7/5), 7-6 (7/5) victory over the five-time Wimbledon champion with a dynamic third round display.
Kerber, 24, will face world number one Victoria Azarenka for a place in the semi-finals. Venus still has a chance of winning her fourth Olympic gold in the doubles with sister Serena.
1700 GMT: A quick recap on today's action in case you've missed it:
+ Eight badminton players, from China, Indonesia and South Korea, have been disqualified after a scandal over "throwing" matches.
+ British Tour de France winner Bradley Wiggins powered his way to cycling gold in the men's time trial. That was after American cyclist Kristin Armstrong claimed the women's title.
+ A packed morning of rowing saw Great Britain's Helen Glover and Heather Stanning roar to victory in the women's pairs in the first gold for the hosts. Germany won the men's eights, while Ukraine won the women's quadruple skulls.
+ Later, world champion swimmer James Magnussen goes for gold in the 100m freestyle.
1656 GMT: "Thomas takes a tumble on the vault," reports Tom Williams of the British hopeful. "That might spell the end of his podium chances. Score: 14.908. He scored 16.550 in the team final."
1643 GMT: We are now at the halfway stage in the men's individual finals in the gymnastics. Uchimura leads by 0.432 points from Japanese team-mate Kazuhito Tanaka, reports Tom Williams.
1630 GMT: Earlier Tom reported that Britain's Kristian Thomas had scored a 14.566 with a difficult routine on the pommel horse receiving a huge roar from the crowds on the dismount.
Meanwhile Japan's Kohei Uchimura scored 15.333 on the rings in a steady start for the three-time world champion, whose best events are still to come.
1623 GMT: GYMNASTICS: Men's individual finals are under way at the North Greenwich arena.
"(Japan's Kohei) Uchimura first up on the vault and he sticks it stone dead. The title looks his to lose his already," reports AFP's Tom Williams.
1613 GMT: NORTH KOREA'S RIM JONG SIM WINS WOMEN'S -69kg WEIGHTLIFTING.
The 19-year-old relied on her superior clean and jerk to win North Korea's third Olympic gold of the weightlifting competition. She recorded a combined total of 261kg after snatching 115kg and registering a best in the clean and jerk of 146kg.
Silver went to Romanian Roxana Cocos, with a total of 256kg (113, 143), while Belarus' Maryna Shkermankova claimed bronze with 256kg (113, 143).
1605 GMT: CYCLING: Bradley Wiggins reacts to his time trial win and British record medal haul: "I cannot put it into words. I wouldn't do it justice. It was really incredible. To win an Olympic gold in your home city.
"When you win in the velodrome, there are three or four thousand people cheering. Here, around the streets of London, the noise is just amazing. I don't think anything will top that. I've just won the Tour de France. It's just been phenomenal."
1600 GMT: SOUTH KOREA'S SONG DAE-NAM WINS UNDER-90KG MEN'S GOLD.
Song Dae-Nam scored a half point waza-ari just 10 seconds into a sudden death period of golden score to beat Cuba's Asley Gonzalez.
World champion Ilias Iliadis of Greece beat Brazil's Tiago Camilo for the first bronze with the second going to Japan's Masashi Nishiyama who defeated Russia's Kirill Denisov.
1555 GMT: JUDO: Things appear to be getting feisty at the men's under-90kg semi-final...
"I'm not sure exactly what these Korean coaches are doing wrong but now Song Dae-Nam's coach has been dismissed from the men's under-90kg final, apparently for shouting too much encouragement to his fighter!" AFP's Barnaby Chesterman tells us.
1550 GMT: CHINA'S LI XIAOXIA WINS WOMEN'S TABLE TENNIS.
Li Xiaoxia won an all-Chinese final against world number one Ding Ning 11-8, 14-12, 8-11, 11-6 to claim gold. Singapore's Feng Tianwei beat Japanese 19-year-old Kasumi Ishikawa for bronze.
1546 GMT: FRANCE'S DECOSSE WINS WOMEN'S UNDER-70kg JUDO GOLD. German outsider Kerstin Thiele took silver, while Colombia's Yuri Alvear beat China's Chen Fei for bronze.
1543 GMT: The eight players disqualified for badminton match-fixing will remain banned after appeals were rejected, Badminton World Federation (BWF) secretary-general Thomas Lund says.
"The appeals committee chairman rejected the cases and thereby the decision of the disciplinary commission stands," says Lund.
Four players from South Korea, two from Indonesia and two from China were disqualified after a BWF disciplinary hearing earlier. South Korea's appeal was rejected while the Indonesians withdrew their case and China did not appeal.
1536 BADMINTON -- BREAKING NEWS: Disqualified badminton players lose appeals.
1535 GMT: JUDO: While we've been largely immersed in cycling, AFP's Barnaby Chesterman has been at the men's under-90kg semi-final...
"Brazil's Tiago Silva has perhaps hundreds of fans amongst the crowd but I can only count three Koreans supporting Song Dae-Nam!" he notes.
"South Korean Hwang Ye-Sul's coach has just been ejected for bad behaviour and it seems to have inspired her as she just scored what appeared to be a winning point, only for Edith Bosch to scramble a levelling point in the last second. Bronze still up for grabs…"
1530 GMT: A huge cheer for Wiggins as he takes to the podium for the medal ceremony outside Hampton Court Palace, where two Union Jack flags are raised alongside the German one. Crowds in good voice for the national anthem too and the sun's even out!
1526 GMT: British Prime Minister David Cameron joins the chorus of praise for Wiggo. The official Downing Street Twitter account, @Number10gov, posts this: "@bradwiggins is a true British hero. First the Tour & now Olympic Gold. @chrisfroome great too. A wonderful day for @TeamGB #timetrial."
1515 GMT: Here are the times for the men's time trial medal winners:
1) Bradley Wiggins: 50:39:54
2) Tony Martin: 51:21:54
3) Chris Froome: 51:47:87
Britons are breathing a sigh of relief after a dearth of golds until today. Earlier British rowers Helen Glover and Heather Stanning dealt the host nation their first gold in the women's doubles.
1510 GMT: Gold for Wiggins makes him the most decorated Olympian in Britain, with a total of seven Olympic medals.
There's an immediate flood of congratulatory messages on Twitter for the Briton, who finishes the race by embracing his wife and two children.
Fellow Olympic cyclist Chris Hoy writes: "YESSSSSS!! Absolutely delighted for @bradwiggins and @chrisfroome. History made today."
1505 GMT: WIGGINS WINS CYCLING TIME TRIAL GOLD!! Germany's Tony Martin takes silver, Britain's Chris Froome takes bronze.
1502 GMT: CHINA WIN MEN'S 3M SYNCHRO SPRINGBOARD GOLD.
China's Qin Kai and Luo Yutong make it four victories from four events for Chinese divers at these Games.
Qin and Yutong tallied 477.00 points from their six dives to win the event from Russia's Ilya Zakharov and Evgeny Kuznetsov, who took silver, and America's Kristian Ipsen and Troy Dumais, with bronze.
1457 GMT: ITALY'S DANIELE MOLMENTI WINS KAYAK GOLD. Vavrinec Hradilek of Czech Republic gets silver, Germanys Aigner Hannes bronze.
1451 GMT: SOUTH KOREA'S KIM JANG-MI WINS WOMEN'S 25M PISTOL GOLD.
Kim Jang-Mi won South Korea's second shooting gold of the games, edging a thrilling contest in the women's 25m pistol.
China's defending champion Chen Ying took silver and Ukraine's Olena Kostevych won bronze.
1446 GMT: Wiggins speeds past Spain's Sanchez who started the race badly with a broken chain and then suffered more bad luck with what looked to be a rear wheel puncture.
With only a few kilometres to go, Wiggins retains the lead, with Martin and Froome still looking set for silver and bronze. After the 29.9km split, Wiggins is 22 seconds ahead of Martin.
1436 GMT: CYCLING: Wiggins has taken the lead by the 18.4km mark of the 44km race, 11.23 seconds ahead of Germany's Tony Martin in second.
Britain's Chris Froome is in third place, with Fabian Cancellara slipping into fourth -- more than 30 seconds slower than the leader. It's not looking good for the 2008 Olympic champion.
1430 GMT: TENNIS: Roger Federer beats Uzbekistan's Denis Istomin 7-5, 6-3, putting him into the quarter finals. The 30-year-old Swiss player will play Serbian seventh seed Janko Tipsarevic or American John Isner for a place in the semis.
1427 GMT: HOCKEY: World champions Australia smash 2008 Olympic silver medallists Spain 5-0 in the men's field hockey tournament.
"Opening up Spain's defence with frequent interchanges, Australia posted their second straight win to stay on top of Pool A with six points," reports AFP's Pat Rowley.
1421 GMT: Tony Martin of Germany, Britain's Bradley Wiggins and Switzerland's Fabian Cancellara are looking like the top three medal contenders at the first split time checks.
Wiggins was five seconds off the leader, world champion Martin, after the first split, with Cancellara a second slower than the Briton.
1408 GMT: And Wiggins is off! Huge screams erupt from the thousands of people lining the streets along the route.
He's followed by four-times world champion Fabian Cancellara, who won the gold in Beijing. But the Swiss badly bruised his shoulder in his crash in Saturday's road race.
1404 GMT: CYCLING: Britain's Chris Froome has set off in the men's time trial, followed by Italy's Marco Pinotti, who won the Tour of Austria time trial in July.
Next, a disastrous start for Spain's Luis Leon Sanchez! His chain fell off as he was setting off and he picks himself up on a new bike but is almost certain to have ruined his medal chances.
1400 GMT: TENNIS: Belgium's Kim Clijsters defeats Serbia's Ana Ivanovic -- both former world number ones -- 6-3, 6-4 to reach the quarter-finals in the women's tournament.
1457 GMT: BADMINTON: More details on the badminton scandal in which eight players have been disqualified. Their appeal hearing will take place today.
The Badminton World Federation (BWF) says the decision was based on two sections of its code, referring to "not using one's best effort to win a match" and "conducting oneself in a manner which is clearly abusive or detrimental to the sport." We'll bring you more details after a BWF press conference to be held later.
1451 GMT: JUDO: Another day, another flow of tears. We've seen them in the fencing, on the podiums, and even in the weigthlifting....
AFP's Barnaby Chesterman reports: "Germany's Kerstin Thiele is in floods of tears…tears of joy having qualified for the women's under-70kg final. She's celebrating wildly her guaranteed medal but that doesn't bode well for her chances against world champion Lucie Decosse in the final.
"Decosse showed no emotion after her semi-final victory, she knew her job wasn't done yet…"
1446 GMT: ROWING: Britain's Heather Stanning, who won the women's pairs earlier with Helen Glover to bring the host nation its first gold, pays tribute to her army colleagues after her win. She says: "Four years ago I got commissioned for Sandhust (military academy) and hadn't thought of the Games.
"All credit to the people in the army to give me time to train. It's been an incredible three years, thank you to everyone for helping me."
1338 GMT: Britain's hopes for the men's time trial -- and the nation's first men's gold -- are firmly weighted on Tour winner Wiggins whose race starts at 15:07:30.
England footballer Rio Ferdinand tweets: "Wiggins please get us a Gold....our medals chart needs a Gold on it...you are the man to lift us!!"
1331 GMT: Great Britain's Lizzie Armitstead failed to repeat her silver medal winning road race success in the women's time trial earlier. After finishing in 10th place she says: "That was just awful. You have just got to put yourself in such a dark, dark place to get through that with your mind. When I saw the 10km to go banner, I was so happy. I've never felt such pain like that."
Her teammate Emma Pooley finished sixth.
1325 GMT: BADMINTON -- BREAKING NEWS: Eight players involved in the match-fixing scandal have been DISQUALIFIED, the Badminton World Federation (BWF) confirms.
But the eight -- four from South Korea, two from Indonesia and two from China -- are appealing the decision, the body said, confirming an earlier AFP report.
1324 GMT: The first of 37 time trial riders set off a few minutes ago -- Morocco's Mouchine Lahasaini.
Fabian Cancellara of Switzerland is the reigning Olympic men's champion though things haven't been going well for him of late. He withdrew from the Tour de France at the 11th stage to be with his pregnant wife and crashed in the Olympic road race on Saturday.
1318 GMT: The men's time trial covers a distance of 44k, starting and finishing at southwest London's historic Hampton Court Palace.
Riders start 90 seconds apart and it's each man against the clock. The winner is the competitor with the fastest time over the one-lap course.
1312 GMT: CYCLING: More details on the women's time trial finishes... Armstrong clocked a winning time of 37min 34sec while world time trial champion Arndt took the silver in 37:50.
Zabelinskaya, already the winner of a road race bronze on Sunday, took her second medal of the Games in a time of 37:57. Danish-born New Zealander Linda Villumsen finished in fourth with Canadian Clara Hughes in fifth.
Next up is the men's time trial, where British Tour de France winner Bradley Wiggins will being going for gold.
1305 GMT: London Mayor Boris Johnson has got himself into another scrape.
He was left dangling for several minutes from a zip wire at an event in east London earlier today where the Olympics was being shown live on big screens.
1253 GMT: Armstrong defended the crown she won at Beijing in 2008, with Germany's Judith Arndt taking silver and Russian Olga Zabelinskaya bronze.
1248 GMT: KRISTIN ARMSTRONG OF US WINS CYCLING TIME TRIAL GOLD
1247 GMT: JUDO: French world champion Lucie Decosse is through to the women's under-70kg semi-finals, where she will face Hwang Ye-Sul of South Korea.
China's Chen Fei faces Germany's Kerstin Thiele in the other semi.
1242 GMT: TENNIS: Play is currently suspended at Wimbledon due to bad weather.
But earlier, Serena Williams showed why she is favourite for gold in the women's competition by crushing Russia's Vera Zvonareva 6-1 6-0 to reach the quarter-finals.
1230 GMT: SWIMMING: Back now to man of the moment Michael Phelps who has the most Olympic medals of anyone in history after winning his 19th last night.
Despite this feat, Games chairman Sebastian Coe said he did not think Phelps was the "greatest" Olympian ever -- but would not be drawn on who he thought was.
Phelps has been deluged by congratulations from around the world -- including President Obama's, as mentioned earlier.
"I just wanted to say thank you to all my friends who sent tweets to me, Obama and Barcelona star Gerard Pique, the soccer player, there were a bunch of different athletes. Figures from all over the world were sending things, which was pretty cool," Phelps said.
1224 GMT: The eight disqualified from Olympic competition are China's Yu Yang and Wang Xiaoli, South Korea's Ha Jung-Eun and Kim Min-Jung plus Jung Kyung-Eun and Kim Ha-Na and Indonesian pair Meiliana Jauhari and Greysia Polii.
Spectators booed them Tuesday for apparently serving into the net and hitting the shuttlecock out on purpose in order to set up favourable draws in the next round.
1209 GMT: Just a reminder that of those eight female badminton players, four are from South Korea, two from Indonesia and two from China.
They were disqualified following a disciplinary hearing of the Badminton World Federation, a senior source with knowledge of the case said.
1205 GMT: EIGHT PLAYERS IN BADMINTON MATCH-FIXING ROW DISQUALIFIED, SOURCE TELLS AFP
1157 GMT: BADMINTON great Taufik Hidayat has weighed into the row over alleged match-fixing.
Former Olympic champion Hidayat has demanded that the eight accused women -- including one pair from his own country, Indonesia -- be kicked out of the tournament.
"It's a bad image for badminton," he said. "I hope they are disqualified. It's not for China. It's not for Indonesia. It's for sport."
1139 GMT: The German cox leaps from the boat in joy as the rowers slump in exhaustion after their victory.
British rowers look shell-shocked -- it had looked for a moment there as if they would be contenders for more than bronze.
1136 GMT: GERMANY WINS GOLD IN MEN'S ROWING EIGHT FINAL, CANADA SILVER, BRITAIN BRONZE
1135 GMT: The home crowds are again on their feet roaring support for the British eight in the rowing -- can it be two golds in the space of minutes?
1132 GMT: ROWING: Germany and Britain are neck and neck in the men's eight rowing final...
1129 GMT: ROWING: UKRAINE WINS WOMEN'S QUADRUPLE SCULLS TITLE, GERMANY SILVER, US BRONZE
1124 GMT: SWIMMING: AFP's Rob Smith says that Australia have qualified fastest for the women's 4x200m freestyle relay final tonight, ahead of the US.
"The Australian team of Brittany Elmslie, Angie Bainbridge, Jade Neilsen and Blair Evans clocked 7m49.44secs to shade the American quartet of Lauren Perdue, Shannon Vreeland, Alyssa Anderson and Dana Vollmer by 1.31 secs.
Canada are third and Italy fourth," he says.
1119 GMT: ROWING: British Prime Minister David Cameron has just tweeted his congratulations after the country's first gold medal in the women's pair rowing.
"I couldn't be more delighted that Helen Glover and Heather Stanning have won the #1stgold medal for Team GB. Here's to many more," he wrote.
Stanning is a captain in the British Army who is set to join her unit in Afghanistan's dangerous Helmand province after the Games.
1115 GMT: Here is a quick recap of the main highlights so far today:
+ Amid a rumbling controversy over badminton match fixing, Sebastian Coe, chairman of the London Olympics, called the situation "depressing." Four pairs in the women's doubles competition from China, South Korea and Indonesia, could be disciplined over the row;
+ The US's Michael Phelps, the new record holder for the number of Olympic medals overall, and Ryan Lochte got through the opening heats of what is shaping up to be a classic men's 200m individual medley;
+ Hosts Britain won their first gold medal of the games in the women's pair rowing final, watched by Princes William and Harry.
1102 GMT: Australia took silver and New Zealand bronze in that women's pair final.
The torrent of congratulations are already coming in for Glover and Stanning, with Britain's Culture Secretary Jeremy Hunt calling it a "magnificent" win on Twitter.
1059 GMT: Huge cheers as Britain's Helen Glover and Heather Stanning collapse in their boats with giant grins on their faces. Princes William and Harry look on from the stands smiling broadly.
1057 GMT: HOSTS BRITAIN WIN FIRST GOLD OF GAMES IN WOMEN'S PAIR ROWING FINAL
1054 GMT: ROWING: Britain are well ahead in the women's pair final with more than half of the race done -- can they secure the host country's first gold?
1053 GMT: More quotes on the badminton from Coe, the London Olympics chairman, who was speaking at a press conference.
"Depressing. Who wants to sit through something like that?" he said.
Four pairs in the women's doubles competition -- one from China, one from Indonesia and two from South Korea -- could be disciplined over the match-fixing scandal.
1045 GMT: BADMINTON: Games chief Sebastian Coe has just called that rumbling match-fixing scandal "unacceptable" and "depressing". More to come on that shortly.
1042 GMT: More from Rob, this time on the men's swimming heats featuring Phelps and Lochte.
"Hungarian Laszlo Cseh has trumped world champion and world record holder Ryan Lochte in the opening heats of the men's 200m individual medley," he says.
"Cseh shaded the 400m medley gold medallist Lochte by 0.83secs to go into tonight's semi-finals as the leading qualifier.
"Michael Phelps, fresh from winning his record 19th Olympic medal last night and the defending champion in the event, was fourth-fastest in what is shaping as a terrific contest."
1037 GMT: SWIMMING: Our correspondent Rob Smith says the US's Rebecca Soni, defending her Olympic title, is the woman to beat in the women's 200m breaststroke.
"Soni was fastest into the semi-finals of the event in 2m21.40secs ahead of Denmark's Rikke Pedersen and Japan's Satomi Suzuki in the opening heats ahead of tonight's semis," Rob says.
1032 GMT: CYCLING: Intense excitement in Britain about the men's time trial from 1315 GMT which could see Tour de France winner Bradley Wiggins break the host country's gold medal duck.
Two newspapers, The Sun and The Daily Mirror, today came with free cut-out ginger sideburns so readers can get the distinctive Wiggins look.
"Here Wiggo" was The Mirror's punning front page headline.
1025 GMT: JUDO: AFP's Barnaby Chesterman reports that Australia's Mark Anthony has caused a major upset by defeating fourth seed Varlam Liparteliani of Georgia in the men's under-90kg category.
1013 GMT: BADMINTON: Back to that row over alleged match-fixing which is hanging over the Games today.
Chinese state media has criticised those involved, including its own pairing of Yu Yang and Wang Xiaoli.
"On the court, these four teams lacked a fighting spirit and desire for victory," said the official Xinhua news agency as reported by AFP's correspondents in Beijing.
"This type of behaviour completely violates the Olympic spirit of fair competition."
1005 GMT: DIVING: A teenager arrested for sending British diver Tom Daley an abusive Twitter message after he failed to get a medal has been given a police warning.
The 17-year-old had accused Daley of letting down his father, who died last year of cancer.
The message was later retweeted by Daley, who has over 900,000 followers.
1000 GMT: Back to today's action in the swimming heats.
Rob Smith reports: "America have dominated the opening heats of the men's 200m backstroke with Tyler Clary and Ryan Lochte the top two fastest swimmers into the semis.
"Clary went 1m56.24secs and was just 12-hundredths of a second quicker than Lochte, who won the 400m medley gold on the opening night of the competition.
"China's Zhang Fenglin and Japan's Ryosuke Irie headed the others in third and fourth spots."
0955 GMT: Missy Franklin's swimming success at the Games has provided some hope in Aurora, Colorado, where 12 people were shot dead at a screening of the new Batman film last month.
Franklin, 17, attends high school in Aurora and lives in nearby Centennial, AFP's Jeanie Stokes reports. She heard about the shootings while she was in London ahead of the Games.
"Every single race I'm going to have that Colorado incident back on my mind. It's such a terrible thing and I'm so shaken by it. They're in my thoughts this entire process," Franklin has said.
Despite that backdrop, she won gold in the 100m backstroke Monday.
0938 GMT: In other swimming news, Australia's Stephanie Rice has said she will take a break from swimming and consider her future after a frustrating Olympics.
Rice, who won three golds at Beijing, was beaten by Chinese prodigy Ye Shiwen in the 200 and 400m medley events.
"I need to take a break to get my head back in the right frame of mind," Rice told reporters. "I'd hate to make a rapid decision on quitting the sport which a few people do."
0928 GMT: AFP's Rob Smith has this update from poolside:
"China's Yi Tang has topped the field in the opening heats of the women's 100m freestyle with a best time of 53.28 secs.
"Yi was quickest into Wednesday night's semi-finals ahead of Australia's Melanie Schlanger and Denmark's Jeanette Gray.
"Dutch flyer Ranomi Kromowidjojo, the year's top-ranked swimmer, was fifth into the semis with American teenager Missy Franklin equal 10th and Germany's Olympic champion Britta Steffen squeezing into the top-16 semis in 14th berth."
0922 GMT: SWIMMING: The women's 100m freestyle heats are getting started down at the Aquatic Centre, the first of a string of heats taking place this morning. Stay with us for results.
0917 GMT: ROWING: Britain's Princes William and Harry have just showed up at Eton Dorney outside London to watch the rowing, British former rowing champ Matthew Pinsent reports on Twitter.
The royals were also out in force Tuesday to support Queen Elizabeth II's granddaughter Zara Phillips in the equestrian team eventing, where Britain won silver.
0901 GMT: JUDO: Who would have thought it? AFP's Barnaby Chesterman has just spotted some pink knickers down at the judo, of all places.
"That's a first in judo as far as I'm aware. Timur Bolat of Kazakhstan has just flashed (inadvertently) a pair of pink briefs. A beefy 90kg judoka, who just picked up and smashed Egyptian Hisham Mesbah flat on his back, and he wears fuschia underwear!" he writes.
0847 GMT: A Wiggins win would make him the most decorated British Olympian in history.
He has six Olympic medals including three golds so far and another medal would put him one clear of rower Steve Redgrave, who also has six.
"Confidence is sky-high that we're going to be in the ballpark," the man nicknamed "Wiggo" has said of his chances in today's race.
0841 GMT: CYCLING: Britain's Bradley Wiggins is hoping to land his country's first gold in the men's time trial later on -- but suffered a minor setback earlier in the week when his training kit went missing from his hotel.
He took to Twitter to vent his frustration but later added: "Gotta delete tweet Re the thief, bad PR, never mind my kit though!"
0832 GMT: SWIMMING: On a happier note, there is still a buzz around the US's Michael Phelps after he won a record 19th medal, making him the most successful Olympian ever.
Last night, Phelps anchored the US team to victory in the 4x200m freestyle relay and won silver in the 200m butterfly.
This morning, he excitedly retweeted a congratulatory message from none other than US President Barack Obama.
"Thank you Mr. President!! It's an honor representing the #USA !! The best country in the world!! RT @BarackObama: Congrats to Michael Phelps for breaking the all-time Olympic medal record. You’ve made your country proud. -bo," said the message.
0825 GMT: China's Olympic delegation has launched an investigation into the badminton claims, saying it "opposes any kind of behaviour to violate the sporting spirit and morality," state media reported.
China's Olympic delegation is already fighting off questions over doping in relation to teenage swimming sensation Ye Shiwen, which are fiercely denied.
0821 GMT: BADMINTON: Some of those implicated in the badminton row have spoken out to defend their tactics.
China's Yu Yang is world champion with partner Wang Xiaoli but the pair lost to unseeded South Korean pair Jung Kyung and Kim Ha Na.
Yu said after the match: "We've already qualified, so why would we waste energy? It's not necessary to go out hard again when the knockout rounds are tomorrow."
0815 GMT: The furore on the badminton court aside, here are the main sporting highlights to look out for later on today:
+ Australian world champion James Magnussen goes for gold in the men's swimming 100m freestyle from 1830 GMT;
+ Bradley Wiggins looks to cap his Tour de France triumph with victory in the cycling time trial and give Britain its eagerly-awaited first gold medal of the Games from 1315 GMT;
+ Rowing finals at Eton Dorney from 0830 GMT.
0806 GMT: The big story this morning is the controversy over alleged throwing of badminton matches.
Four pairs in the women's doubles competition -- one from China, one from Indonesia and two from South Korea -- were booed off court Tuesday after apparently serving into the net on purpose to concede points, hitting the shuttlecock out of play, or wasting time.
They were allegedly trying to manipulate the final standings in the first-round group stage, with two pairs who had already qualified apparently wanting to lose to secure easier opponents in the next round.
They face a disciplinary hearing later Wednesday.
WELCOME to AFP's Live Report on the London 2012 Olympics on Wednesday August 1.
It's another busy day of sporting action with plenty of swimming, cycling and rowing action to look forward to, so stay with us for all of the day's action.