Summary
Adam Peaty wins 100m breaststroke gold in world record time
Wales' Jazz Carlin wins 400m freestyle silver 14 minutes later
USA's Michael Phelps wins relay to claim his 19th gold
Murray brothers and Williams sisters out of tennis doubles
Djokovic loses in tennis singles first round
Live Reporting
Tom Rostance
rowing Rowingpublished at 14:39 British Summer Time 7 August 2016
rowing 'You don't want to be hanging around'published at 14:38 British Summer Time 7 August 2016
14:38 BST 7 August 2016Rowing
Mark Hunter
Olympic rowing champion on BBC Radio 5 LiveAs an athlete you would rather know if it's going to be cancelled, rather than hanging around.
The last thing you want to do is sit here all day. The crews will go back to the hotel, decompress and get ready for racing tomorrow.
table tennis Pitchford leads 3-1published at 14:36 British Summer Time 7 August 2016
14:36 BST 7 August 2016Liam Pitchford has his man right where he wants him.
The Briton leads 3-1 against Zorkid Kenjaev of Uzbekistan in their first-to-four second round match.
'As a rower, you can't let it affect you'published at 14:34 British Summer Time 7 August 2016
14:34 BST 7 August 2016Alistair Magowan
BBC Sport in RioI'm sat next to former double Olympic champion James Cracknell, whose said this about the postponement: "Rowers are not stupid they will have watched yesterday's rowing, where the Serbian crew capsized, and they know that if people were falling in World Rowing aren't going to send them out with the conditions worse today.
"It's more what happens now. Tomorrow's forecast is the same, and if they cancel again, you will have the prospect of repechages and semi-finals on the same day. It creates a world of problems.
"As a rower, you just have to deal with it. It's the same for everyone, and you can't let it affect you."
judo What's coming up?published at 14:29 British Summer Time 7 August 2016
14:29 BST 7 August 2016Judo
Britain's Commonwealth champion Colin Oates is 11th on the mat in the men's -66kg round of 32. We expect him to get under way in the next half hour or so.
The 33-year-old, who won a European silver medal in April, is up against 26-year-old Kilian Le Blouch - champion of France in 2012 and 2014.
Rowing postponed for the daypublished at 14:27 British Summer Time 7 August 2016
14:27 BST 7 August 2016Alistair Magowan
BBC Sport in RioRowing is postponed for the day because of the wind. An announcement in the press room says that a new schedule will follow.
rowing Rowing called off for the daypublished at 14:27 British Summer Time 7 August 2016
14:27 BST 7 August 2016How will that affect Team GB?
Well, there have been some psyched up rowers keeping their adrenaline on a leash for several hours.
I expect some furious games of ping pong back at the athletes village to take out some of their frustration.
This was tweeted a few minutes before they called off the action.
rowing Rowing called off for the daypublished at 14:23 British Summer Time 7 August 2016
14:23 BST 7 August 2016Rowing
John Murray
BBC Radio 5 live commentatorThe second day of the Olympic rowing regatta has been called off. There hasn't yet been an announcement to the spectators, but it will have to be rescheduled.
rowing Rowing called off for the daypublished at 14:22 British Summer Time 7 August 2016
14:22 BST 7 August 2016Breakingfencing GB's Davis throughpublished at 14:22 British Summer Time 7 August 2016
14:22 BST 7 August 2016Great Britain's James-Andrew Davis has won through to the last 16 with a 15-7 dispatching of Mohamed Ferjani.
Watch day two coverage from Rio Olympicspublished at 14:20 British Summer Time 7 August 2016
14:20 BST 7 August 2016Struggling against the tide of Olympic action?
Well, this is a mere trickle compared with what is to come.
You had best get yourself across to our smorgasbord of live streams and fill your sporting face.
shooting GB's Ling in actionpublished at 14:18 British Summer Time 7 August 2016
14:18 BST 7 August 2016Great Britain's Ed Ling is in action in the men's trap qualification. He has opened with a decent 24 in the first round, but is outside of the top-six slot he needs at the moment.
Still plenty of time to go in that though.
get involved Get Involvedpublished at 14:14 British Summer Time 7 August 2016
14:14 BST 7 August 2016#bbcrio2016
Angie: Fabulous afternoon of #bbcrio2016 to look forward to, gymnastics, rugby 7's, diving, cycling, I'm excited....#DoNotDisturb
Ed Byard: The sacrifice is longer than 4 years. It is your, and your families, lifetime up to the start of the games.
Nathan Webb: I've got to entertain a 14 -mth-old toddler for the day tomorrow AND keep on top of all #Rio2016 action. Help please!
We've got you covered, Nathan, with coverage on TV, online and on the radio throughout the day.
rowing Gimme shelterpublished at 14:09 British Summer Time 7 August 2016
14:09 BST 7 August 2016Alistair Magowan
BBC Sport in RioThe breeze might be delaying the rowing but it's providing a welcome respite during another warm morning at Lagoa. It got up to 30 degrees yesterday and the crowd have learned their lesson, taking shelter underneath the stands.
The BBC Radio 5 live team are sensibly using their brolly early on and the press room is packed, with one man to my right catching up on some sleep as he waits for racing to start.
Latest is that we will begin at 14:30 BST.
table tennis Table Tennispublished at 14:09 British Summer Time 7 August 2016
14:09 BST 7 August 2016Pitchford v Kanjaev
Great Britain's Liam Pitchford is taking on Zokhid Kanjaev of Uzbekistan in his table tennis opener
He was England’s bronze-winning team at the World Championships in Kuala Lumpur earlier this year and broke into the world’s top 40 for the first time earlier this year.
fencing Brit alertpublished at 14:04 British Summer Time 7 August 2016
14:04 BST 7 August 2016James-Andrew Davis, the US-based Londoner is ranked in the world's top 10 and is taking on Mohamad Ferjani of Tunisia.
In 2010, with Davis weighing more than 20 stone, and ranked outside the world’s top 300, his coach gave him an ultimatum, and the fencer changed his diet, and shed more than five stone in 18 months – and the results followed.
The outdoor saunapublished at 13:59 British Summer Time 7 August 2016
13:59 BST 7 August 2016Luke Reddy
BBC Sport in RioMy word, it is baking in Deodoro, absolutely baking.
First stop today is the National Equestrian Centre, where the Eventing competition - comprising dressage, cross country and show jumping - continues with round two of the dressage.
William Fox-Pitt, who was in a coma in 2015, leads aboard Chilli Morning after yesterday's displays. What a story that could provide in the days to come.
Horses will need some cooling off today, perhaps not with a £2.50 fizzy drink but my guess is most people in this stadium would welcome a bucket of water thrown over them at some point today.
I'll be at rugby sevens later where Team GB's women will play a pool match and likely quarter final. That's if I haven't melted on the 25 minute walk over.
rowing 'It is not going to happen soon'published at 13:56 British Summer Time 7 August 2016
13:56 BST 7 August 2016Rowing
Sir Steve Redgrave
Five-time Olympic rowing champion on BBC OneThey’re going to check the course at 10 (14:00 BST) and start racing at 10:30.
You can't do that. It takes at least half an hour to warm up on the water. The earliest they will start is 11 (15:00 BST).
I saw Polly Swann, who is competing in the women's eights, and she said one of the Kiwi boats actually sunk in warm-up this morning. It is not going to happen soon.
Facebook Lives a-go-gopublished at 13:56 British Summer Time 7 August 2016
13:56 BST 7 August 2016Copacabana is calling. And when Copacabana is calling you should answer.
Just remember to say no if it wants you to go swimming in water, external "teeming with pathogens".
But a Facebook live session from the beach volleyball? You gotta do it. And the equestrian arena? You're spoiling us.
handball Handballpublished at 13:47 British Summer Time 7 August 2016
13:47 BST 7 August 2016Croatia 3-5 Qatar
The day's handball is under way at the Future Arena.
There are no British teams in the event this year, but the Qatar team is doing a passable impression of an all-star outfit.
Have a read of this feature from the Daily Telegraph , externalon how the "desert state with fewer inhabitants than Manchester is pinning its hopes of a first Olympic gold medal on five men from the Balkans, a couple of Syrians, one from Cuba, a Spaniard and a Frenchman."
A naturalised player can earn more than a million euros playing for Qatar.