Team GB's medal haul on Super Saturday:

Gold (4): Rebecca Adlington (swimming, 800m freestyle); Tom James, Steve Williams, Peter Reed and Andy Triggs (men's coxless four); Bradley Wiggins (in the 4000m individual pursuit); Chris Hoy (keirin). Silver (1): Ross Edgar (keirin). Bronze (4): Elise Laverick and Anna Bebington (women's double sculls); Matt Wells and Stephen Rowbotham (men's double sculls); Chris Newton (men's points race); Steven Burke (4000m individual pursuit).

1645BST The Williams sisters have gone through to the final of the women's doubles. Meanwhile, a classic football semi-final awaits between Brazil and Argentina, who beat Holland 2-1 this afternoon.

1614BST The men's 100m and Team GB's golden Saturday feel like they're the only stories in town - but they're not. Roger Federer has made up for his disappointment in the singles with a gold medal for Switzerland in the doubles. He and Stanislas Wawrinka beat Simon Aspelin and Thomas Johansson of Sweden 6-3, 6-4, 6-7 (4/7), 6-3.

1553BST Richard Lewis of The Sunday Times posted his report on this amazing race a few minutes ago. Read it here .

1532BST The superlatives are running out - the fastest time ever, probably the biggest margin of victory ever - and the silver and bronze medals have almost been forgotten. This is astonishing. For the record, Richard Thompson of Trinidad and Tobago took second, and American Walter Dix the third. Asafa Powell could manage only fifth.

1531BST NEW WORLD RECORD! As predicted, Usain Bolt cruises to easy victory, but no one could have predicted the time: a new world record of 9:69!

1524BST Excitement's building ahead of the day's main event: the men's 100m. With Tyson Gay out of the final, it's looking increasingly like a one-horse race.

1512BST Can Kelly Sotherton improve on her fifth place in the heptathlon? The second heat of the last event, the 800m, is about to begin... Sadly, the answer is no. Even running a lifetime-best time can't lift her into the medals, as Ukraine make it a one-two, with Natalia Dobrynska claiming the gold, and Lyudmila Blonska the silver. Here's Richard Lewis's report .

1455BST The second 800m heat has come and gone, and there's to be no Briton in the final, as a tiring Jenny Meadows also comes in sixth. It suddenly seems a long time since Dame Kelly's eye-popping run in Athens.

1450BST Meanwhile, Team GB's Marilyn Okoro fades away at the end of the 800m semi-final first heat, coming in a disappointing sixth with a time of 1:59:53. Being spiked on the second bend didn't prevent Mozambique legend Maria Mutola reaching her fifth Olympic final - she came in second.

1446BST Heptathlete Julie Hollman, competing in her first Olympics at the age of 31, goes in the first heat of the final event, the 800m. She acquits herself well, with a time of about 2:20, but is nowhere near the medals. Kelly Sotherton's heat will happen in about half-an-hour.

1422BST: The USA dominates the first heat of the men's 400m hurdles: Angelo Taylor strolls home in first place. In the second heat its mostly about the Jamaicans, although the USA's Kerron Clement works hard to finish first.

1412BST: Great Britain take a 1-0 lead over Japan in the women's hockey, giving them an outside chance of progressing out of their tough group.

1401BST: Kelly Sotherton is in fifth place in the heptathlon and her medal chances have all but disappeared.

1341BST: Women's 100m heats now and Jeanette Kwayke is flying the flag for Britain. Kwayke finishes in third place - a good run and a personal best. Montell Douglas finishes fourth in her heat with a time of 11.38secs and doesn't go through to the final.

1323BST: Asafa Powell in first with 9.91secs but world champion Tyson Gay is found wanting and won't be running in the final. Will it be gold and silver for the Jamaicans?

1320BST: Britain's up to number six in the medal table, but it looks like our sports minister will still be coughing up for some bubbly. False start in the 100m.

1317BST: Asafa Powell and Tyson Gay up next.

1313BST: It's Bolt first with a time of 9.85secs, and he looks like he's barely broken a sweat. Edgar is second last.

1311BST: Will it be another Bolt from the blue? Get ready for semifinal 1 of the men's 100m. Brit Tyrone Edgar gets to race next to the Jamaican.

1305BST: Chris Hoy takes gold and fellow Scot Ross Edgar takes silver! Time for Sir Chris Hoy to arise? Definitely. Nine medals in ten hours! What a day!

1304BST: Early attack from Japan. Hoy in front. Edgar finds his way through to third.

1303BST: Hoy looking to clinch his second gold medal and well positioned....

1301BST: Ross Edgar and Chris Hoy prepare to race for gold in the keirin.

1258BST: a throw of 37.66m for Kelly Sotherton in her weakest event, the javelin. Her season's best, but no chance of a medal.

1254BST: Jenny Meadows is out of the 800m after finishing sixth in her semi-final.

1249BST: Jang Miran of South Korea has set a new world record in the women's weightlifting 75kg class with a snatch lift of 140kg, presumably making her the human equivalent of an ant.

1247BST: Serena and Venus Williams are, perhaps unsurprisingly, through into the final of the women's doubles after beating sisters Alona and Kateryna Bondarenko of the Ukraine.

1240BST: Gold for Bradley Wiggins! It's like Athens all over again! The Londoner joins Rebecca Adlington and Steve Williams as a double Olympic champion. One bronze and one gold for Britain - excellent! Are we beating the Italians yet?

1239BST: Wiggins ahead by two seconds!

1237BST: The fight is on as the Kiwi Hayden Roulston develops a lead. But three times world champion Wiggins will be chipping away...

1236BST: Bradley Wiggins up next (in the 4000m individual pursuit) and going for the gold. Is he going to try to break the Olympic record?

1231BST: Bronze by over three seconds! Burke just got quicker and quicker with each lap. He'll be one to watch in 2012.

1230BST: Steven Burke goes up against Alexi Markov of Russia - and forges ahead in the first thousand metres of the men's 4000m individual pursuit bronze medal race.

1227BST: Swedish greco-roman wrestler Ara Abrahamian has been stripped of his 84kg-category bronze medal after throwing it down in protest at the refereeing.

1219BST: More misery for Kelly Sotherton as her first throw in the heptathlon javelin is declared a foul.

1216BST: Ross Edgar has only got to beat one rider to go through. There's no compromise as Edgar sprints off....and he's through to the Olympic final. He made it look easy. Will it be another gold in thirty minutes?

1207BST: Two of the riders in this keirin semi-final have collided - looks like the race will be restarted. Ouch!

1203BST: Chris Hoy dominates the keirin and looks unstoppable as he goes through into the final.

1155BST: Chris Newton is caught napping at the end of the race by Roger Kluge of Germany and has to settle for bronze. There was, earlier, a good chance of silver. Spaniard Joan Llanares takes gold, and retires in style.

1143BST: Chris Newton goes into third...

1131BST: Chris Newton is contesting the the men's points race in the velodrome - he's currently fourth.

1121BST: Five-time world champion Saori Yoshida of Japan retains her Olympic women's wrestling 55kg title by overwhelming Xu Li of China.

1056BST: Chris Hoy immediately leaps into the lead in the keirin to win his heat, as does sprinter Ross Edgar after avoiding a potential crash.

1046BST: More good news from the velodrome: it will be an all-British final in the women's 3000m individual pursuit, with Wendy Houvenaghel and Rebecca Romero competing for gold. Even if she wins silver, Romero will become just the second woman in Olympic history to win medals from two different sports at the summer Games.

1037BST: Incredible sprint for the finish line by Britain as they overhaul the Aussies in the last 200 metres to take gold. Gold! Unbelievable! Tom James, Steve Williams, Peter Reed and Andy Triggs join the pantheon of legendary sporting heroes alongside Redgrave and Pinsent... Gold for the third time in a row, but it looked like it hurt! Australia take silver and France bronze.

1035BST: Almighty push by Great Britain as they fight off competition from Slovenia for silver. Slovenia? Do they even have lakes? Australia once again look in charge.

1032BST: Every stroke is critical as Britain trail Australia by less than half a second.

1031BST: Great start from Britain in the coxless four, but will it be another Aussie victory?

1024BST: Ross Edgar emulates Chris Hoy by winning his first-round heat in the keirin. Coxless four up next.

1017BST: It's bronze for Britain in the men's double sculls after a tiring tussle with Estonia, who came from behind to take silver. The Australian victory by David Crawshay and Scott Brennan never looked in doubt. Could Britain have done better?

1013BST: Brits Matt Wells and Stephen Rowbotham charge through to silver with 34 strokes a minute...

1011BST: Australia lead the men's double sculls - Britain in bronze position.

1009BST: Chris Hoy easily wins his heat in the keirin - it's going to be a good day for British cyclists!

1003BST: Bradley Wiggins beats Alexander Serov in the velodrome. Londoner Wiggins is now favourite to win gold.

1000BST: Another medal! Britain gets a bronze in the women's double sculls. New Zealand beat Germany to gold by just one hundreth of a second.

0957BST: Britain moves into the bronze medal position in the women's double sculls with an impressive effort from Elise Laverick and Anna Bebington. Can they take silver?

0949BST: Middleweight James DeGale wins his second-round fight as Bradley Wiggins begins the 4000m individual pursuit.

0939BST: Australians Drew Ginn and Duncan Free dominate the men's coxless pair, whilst New Zealand is pipped to the post by Canada for silver. It's the first gold for Australia outside the swimming pool and Ginn's third title.

0934BST: Lifetime best from Steven Burke puts him through to the last four in the men's individual pursuit, after a cracking ride during which he managed to pedal back from a two second deficit at the Laoshan velodrome.

0920BST: Louisa Reeve and Olivia Whitlam finish last in the women's pair - proving again that British rowers don't always win, unfortunately!

0859BST: Alan Campbell, after a last burst in the final of the men's single skull, can only manage fifth. Norwegian Olaf Tufte takes gold on Lake Shunyi. It's a disappointing start for the Team GB quest for medals in rowing.

0856BST: Campbell has dropped down into fifth - time to pull hard!

0852BST: Alan Campbell from Northern Ireland is in the lead by about half a length!

0850BST: Alan Campbell, in the final of the men's single scull, makes a quick start. He was on crutches just weeks ago!

0830BST: Great quote just in from Beijing: "It's funny because just before the race my coach came over with clippers and shaved the back of my neck, where there was hair below the bottom of my cap. That's how little difference there can be." - Serbia's Milorad Cavic, who lost by the very narrowest of margins to Phelps.

0829BST: China's Dong Dong - crazy name, crazy guy - bounces into second place in the Olympic trampoline qualifiers.

0827BST: Carol Huynh has guaranteed Canada's first Olympic medal in the women's 48-kilogram freestyle wrestling, defeating Kazakhstan's Tatyana Bakatyuk by a score of 1-0, 4-0.

0759BST: Ben Ainslie was in gold position but, annoyingly, the Finn race has just been abandoned after the wind dropped to one knot.

0742BST: Only two nations can possibly win gold in the sailing - the UK and USA - and top of the podium looks very achievable for Ben Ainslie. It should be business as usual...Ben is heading for gold number three. Cross your fingers!

0727BST: The sailing is now under way, with Ben Ainslie going up against the American Zach Railey....and grabbing an early advantage....

0726BST: Craig Lord in Beijing points out that Rebecca Adlington's times bear closer scrutiny:

100m: 59.37sec - Adlington is a fingernail from the speed in which Johnny "Tarzan" Weissmuller won his first Olympic 100m freestyle title. The average pace of each subsequent 100m is faster than the time in which Australian sprint legend Dawn Fraser won the first of her three crowns, in 1956.

200m: 2:01.32 - Adlington would have made the final of the straight 200m at every Games up to and including Atlanta in 1996

400m: 4:05.72 - Adlington would have won the silver medal in the straight 400m at the 2004 Games in Athens in a time that is 2sec faster than the speed at which Mark Spitz held the men's 400m world record in 1968

800m: 8:14.10 - Adlington is the first British woman to hold a world record in an Olympic event since 1960. Her time breaks the oldest record on the books, the 8:16.ss set by Janet Evans (USA) when the 2008 Olympic champion was six months old.

0719BST: Zhang Ning of China retains her women's badminton singles title after beating compatriot Xie Xingfang.

0715BST: The Netherlands become the first team to get into the semi-finals of the women's field hockey with a 2-1 win over Australia. Maartje Paumen scored two (one in each half) to give the Dutch a victory over the Hockeyroos.

0700BST: Bad news from the boxing ring, where the first of Britain's two fighters today, Khalid Yafai, has been given a bit of a lesson by a veteran Cuban by the name of Andris Laffita Hernandez. Hernandez won the flyweight bout 9-3, with our boy losing the first three rounds and getting a share of the spoils in the fourth.

0645BST: Gold medal No2 of the day may have to wait a little while: the wind is playing up at Qingdao for the sailing again, first it was blowing in the wrong direction and now it is not blowing at all. That means that Ben Ainslie - currently leading the Finn class ahead of the final medal race - is having to twiddle his thumbs for the moment.

0625BST: Walker Valeriy Borchin has won the men's 20 kilometres race walk to give Russia its first athletics gold of the Beijing Olympics.

0600BST: Hugh McCutcheon, the American volleyball head coach, has made a successful return to his team duties, having missed their opening games after an attacker murdered his father-in-law in Beijing. The unprovoked attack embarrassed Olympic organisers and stunned the American team, who responded to the return of McCutcheon, a New Zealander, by beating hosts China 25-22, 25-12, 25-18 to make the quarter-finals.

0542BST: On the track, Lee McConnell, third in her heat and Christine Ohuruogu, winner of hers, are both safetly through to the semi-finals of the women's 400m, though it has to be said that Sanya Richards, the American, looked ominous in her heat. While we have been speaking to Craig Lord, our swimming correspondent on the phone, from Beijing Nicola Sanders, the silver medallist from the world championships in Osaka last year, is also through safely. Incidentally, Craig reckons that Michael Phelps won that extraordinary butterfly final by 4.7mm - wonder how long his fingernails are!

0536BST: OK, sorry to disappoint you but your correspondent had not dozed off, once more the daily maintenance of our computer system had forced us to down tools for 15 minutes or so. What's been happening? Well, Michael Phelps's victory in the 100 metres butterfly stands after that appeal, so he still has seven Beijing gold medals to his name. We should point out that Milorad Cavic was quite embarrassed that officials from his home nation put in the protest and that the Serbian would have been happy for the result to stand.

0502BST: Possible big story breaking from the pool, where Serbia have launched an official protest against Michael Phelps's record-equalling seventh gold medal in the 100 metres butterfly. Apparently, they cannot believe that their swimmer, Milorad Cavic, failed to win when he had two inches left to travel while the American was around six feet from the finish. If you can get to a slow-motion replay check it out, it really is incredible to countenance how Phelps did ultimately prevail.

0455BST: Oh dear, poor Kelly Sotherton, it appears her hopes of winning a medal of any colour have all but disappeared after a disappointing performance in today's first event on day two of the heptathlon, the long jump. Sotherton could only manage a best of 6.33m, achieved with her second jump, well below her PB of 6.68m.

Sotherton now stands in fifth, with the javelin, traditionally her weakest event, due up next. For the record the top five are: Nataliia Dobrynska (Ukraine) 5045 points, Hyleas Fountain (USA) 5029, Lyudmila Blonska (Ukraine) 4913, Anna Bogdanova (Russia) 4913 and Sotherton on 4891.

0430BST: Craig Lord, our swimming correspondent, has submitted his report on Rebecca Adlington's stunning victory in the women's 800 metres freestyle, which is available to read here. To close out the morning's action in the pool, Fran Halsall failed to qualify for the final of the women's 50 metres freestyle. At the Bird's Nest, the women are currently trying to qualify to the second round of the 100 metres. Jeanette Kwakye and Montell Douglas are definitely through for Britain, while Laura Turner, who was disappointing, must wait to see if she is one of the fastest losers, but we are not hopeful.

0406BST: Please pardon me while we revel in Rebecca Adlington collecting her second gold medal and listen to the refrains of God Save the Queen. A magical start to a day that should just get better and better. Do not go to bed, you do not want to miss all this excitement. Kelly Holmes is now a Dame, having won two golds in Athens - is Beccy too young at 19 to have the same honour bestowed upon her?

0340BST: Most excitable swimmer in the pool award today goes to Cesar Cielo Filho, the Brazilian, who can now claim to be the fastest swimmer in the world after taking gold in the men's 50 metres freestyle. Two Frenchmen, Amaury Leveaux and Alain Bernard, take second and third.

0330BST: On the track, Kirsty Sotherton is in action in the heptathlon long jump, but an opening jump of 6.21m is not what she was looking for. She looks extremely frustrated.

0325BST: Stunning, just stunning. Adlington takes charge from very early on and it soon becomes clear that not only is gold in the bag, but that she is going to smash the world record in the process. Adlington clocks 8:14.10, more than two seconds inside the old mark, with Elessia Filippi of Italy and Lotte Friis of Denmark filling the minor placings.

0318BST: Now the other highlight of today's swimming: Rebecca Adlington to Great Britain is just about to go for her second gold medal, this time in the women's 800 metres freestyle. Can she win? Can she set a world record? Now that would be something really special.

0315BST: Phelps is not even in the top three at the turn and he looks totally spent. Surely Mr Unbeatable has blown this one. But he comes back from absolutely nowhere and at first glance Cavic appears to make a mess of the finish, allowing Phelps to snatch victory by one one-hundredth of a second. There is no way Phelps should have won that, and Cavic was groping for the final wall - the Serbian will be livid because he had that in the bag. Andrew Lauterstein of Australia was third, but with the greatest respect to him, apart from his mum and dad, who cares about third?

0308BST: Michael Phelps has entered the building. He is up next in the 100 metres butterfly, looking for his seventh gold medal of these Games and 13th Olympic gold overall. Ian Crocker of the US and Milorad Kavic are potential threats and they have been trying to psyche each other out staring at each other before the start. Fantastic!

0304BST: Coventry finally gets the victory she has been craving, smashing the world record by nearly a second. Margaret Hoelzer of the US was second and Reiko Nakamura of Japan third, while Simmonds faded to finish sixth but still set a British record.

0300BST: Off to the pool for the first of today's finals, the women's 200 metres backstroke. Kirsty Coventry of Zimbabwe will be desperate for a gold medal after several near misses (three silvers), while British interest rests with Lizzie Simmonds.

0240BST: Well done to Anthony Famiglietti, an American, who goes out like an express train in his heat of the men's 3000 metres steeplechase. At one point he had a lead over the remainder of the field approaching 100 metres and managed to hang on until the final home straight, doing enough to finish third and make the final. Andrew Lemoncello of GB is not so fortunate as he misses out on qualification by a distance and had to push a dozy athletics official out of the way after he had wandered on to the track believing all the athletes had passed by.

0200BST: Before all that excitement ahead, a little lull. Hard to get worked up, if I am honest, about the men's 20km walkers, who have just set off out of the Bird's Nest stadium. Trust me, it's worth watching later if only to see if anyone is disqualified for "lifting" (that's having both feet off the ground at the same time to you and I) within sight of the finish line.

0130BST: Swimmer Rebecca Adlington is expected to spearhead a British gold rush in Beijing today, the like of which has rarely been seen before.

Adlington takes to the pool at 0313BST in the final of the women’s 800 metres freestyle, where she is the fastest qualifier and firm favourite to repeat her success of Monday in the 400 metres where she also struck gold.

If successful it will be the first time Great Britain has won two swimming golds at the same Olympics in 100 years, a feat which puts the monumental achievements of mighty Michael Phelps into perspective.

The Baltimore Bullet goes chasing gold medal No 7 of these games in the 100 metres butterfly, where the main challenge is expected to come from his fellow countryman Ian Crocker. Success for Phelps would emulate the achievement of another US swimmer, Mark Spitz, in Munich 36 years ago when he became the only athlete thus far to win seven gold medals at one Games.

From the pool, the attention switches to the track, where Kelly Sotherton aims to keep her medal hopes alive in the heptathlon. Sotherton, who took bronze in Athens four years ago, currently stands in third place behind Hyleas Fountain of USA and Natalie Dobrynska of Ukraine. But with the javelin, her weakest event, among the three contested today, Sotherton will be aiming to do something special in the long jump, which starts around 0250BST.

Today’s action at the track culminates with the final of the men’s 100 metres which should see a battle royal between Usain Bolt, the world record holder, Asafa Powell, Bolt’s Jamaican team-mate who was the previous holder of the record and Tyson Gay, the American, who is the Olympic champion. That is, of course, assuming all three come through the semi-finals earlier in the day that also feature Britain’s lone survivor, Tyrone Edgar.

Then it’s out on to the water at Qingdao where hopefully Great Britain will be celebrating two sailing gold medals around breakfast time. Ben Ainslie is leading the Finn class by 12 points, which means that he can afford to finish within six places of his only legitimite challenger, an American, in the medal round (where points count double) and still claim a gold medal for the third Olympics in a row.

It is much tighter in the yngling class where Sarah Ayton, Sarah Webb and Pippa Wilson simply must finish in front of their Dutch rivals to take the gold. If their European rivals beat them in the medal race then it will be they who claim victory. Talk about pressure.

And there’s more. Britain has interest in five of the rowing finals, and are certainly favourites in two of the events, the men’s double sculls in the shape of Stephen Rowbotham and Matt Wells and the Men’s Four of Tom James, Steve Williams (the only survivor from the 2004 triumph in Athens), Peter Reed and Andy Hodge, who are aiming to complete a hat-trick of victories in this event.

If you can take any further excitement there should be more cycling gold after the success for Chris Hoy, Jason Kenny and Jamie Staff in the men’s team sprint on Friday. Assuming nothing goes wrong in the first round, Bradley Wiggins looks an absolute certainty for the win in the 4,000 metres individual pursuit at 1155BST and Chris Hoy should follow him home in the next event, the men’s keirin 25 minutes later. We also have interest in the men’s points race at 1040BST.

Britain’s Khalid Khalid Yafai and James DeGale are in the boxing ring and our hockey women take on Japan in their penultimate pool match.

It promises to be a breathless day.