James Cracknell
Double Olympic Rowing gold medallist

In 600m the South Africans have taken two lengths out of the current Olympic silver medallists so they should take great confidence in that. 

In the first half, it was all about the British pair, in the second half it was ALL about the South Africans.

Smashed it. The South African pairing is slick as you like in taking victory here. 

But Great Britain's Richard Chambers and Will Fletcher are through to the semi-finals with them in second.

The rest of the field go through to repechage: Switzerland in third, China in fourth and Brazil the last boat of five. 

Next up? Helen Glover and Heather Stanning in the women's pair heats...

James Cracknell
Double Olympic Rowing gold medallist

"Richard Chambers and Will Fletcher know where they want to qualify in this. It is not just about qualifying, it's about qualifying as hard as you can. The better you do in this round, the better semi final draw you get so it matters where you qualify". 

Keep across all things Rio 2016 with BBC Sport's live coverage.

Check out all of the live video you can currently watch here..

Image source, BBC Sport

If you're unfamiliar with the background story to William Fox-Pitt's participation at these Games, head over here.

He suffered a head trauma when he fell from his horse at the World Young Horse Championships in France - and is now competing just 10 months after being placed in an induced coma.

He was treated at Poole hospital and they've sent this goodwill message for the 47-year-old.

“All at Poole Hospital are thrilled with the progress William has made, and have been watching his return not only to health but to the highest levels of sporting achievement with enormous interest and pride.

“William’s recovery has been remarkable and we wish him the best of luck in his Olympic endeavours.”

Image source, Getty Images

Back to the rowing with you.

Richard Chambers and Will Fletcher are the next to go for Britain, at about 16:20 BST. Top two through to the semi-finals.

Follow it here.

Luke Reddy
BBC Sport in Rio

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Just when I thought the Youth Arena was going to become my favourite Deodoro venue comes this - Canoe Slalom. It took two buses to get here and I have no idea how I'll make it back to the women's rugby sevens semi final by 19:00 BST but boy is this impressive.

There are 25 million litres of water running over this course and a practice course combined.

Team GB have David Florence and Richard Hounslow set for action in the C2 class - essentially a two-man canoe.

Then it's Fiona Pennie in the K1 - a single persons kayak - in heats also.

Hounslow and Florence are a medal chance. No side has visited this centre more than GB's in the run up to the Games. They know the 250m course inside out.

It's was all square going into the third round of the men's 49kg light-flyweight bout between Ireland's Ireland's flag bearer, Paddy Barnes and Spain's Samuel Carmona...

A cracking right hook from Barnes says to us he is looking the stronger in this final round. But wait, is that a nick on his eye? 

How will this end.....?

WOW. It's a shock split decision as Paddy Barnes iseliminated in his third Olympic Games... 

Spain's Carmona looks delighted and will advance to the quarter final.

Image source, PA

Team GB's silver medallists from 2012 David Florence and Richard Hounslow take to the stage/spray in the C2 canoeing heats at 16:45 BST today.

The French pair of Gauthier Klauss and Matthieu Peche are most likely to threaten the Brits who only managed fifth place in last years' World Championships. 

GB's Fiona Pennie also runs in the women's K1 singles - she should be out at around 17:30.

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GB's Nekada Smythe-Davis has gone out to a single yuko point from France's Automme Pavia in the last 16 of the women's -57kg judo.

A little bit extra to this one - Pavia is the partner of GB men's judoka Ashley McKenzie, who exited the competition yesterday.

The judo action continues and you can watch it here.

BBC One

A clearly devastated Galal Yafai has been speaking to BBC One following his second round defeat. 

"It was a close fight. I thought I'd done enough but obviously not. I can't take positives from this. I've lost, so its all negative for me". 

And former British, Commonwealth and IBF bantamweight champion Stuart Hall has tweeted his support for the 23-year-old Olympian. 

The semi-finals are scheduled for 19:00 BST - with the medals to be decided shortly after.

The Kenyan coaches are once again dancing by the ring - this time to celebrate the success of Peter Mungai, who has defeated Lu Bin in the men's light fly last 16.

Image source, Getty Images

GB's Nekoda Smythe-Davis is out for her last-16 bout in the women's -57kg.

Watch it here.

Well it's the best British score on the course so far, but there's a sense William Fox-Pitt will be slightly disappointed with that.

He had led after the first eventing phase but has now slipped to fifth overall. Still a chance he could make it back to the top of the pile in the jumping though - that's to come tomorrow. 

And later today, we'll be seeing Pippa Funnell and Kitty King go round too.

Follow it here.

Things were looking good for Britain's Kyle Edmund at 3-0 up, but his groundstrokes then began to misfire and the more consistent Taro Daniel of Japan has taken the first set 6-4.

Ibtihaj Muhammad is through to the last 16 of the women's individual sabre after beating Ukraine's Olena Kravatska 15-13.

She's the first American to compete at the Olympics wearing a hijab - and has been speaking to our very own Shamoon Hafez about all sorts of things, including Donald Trump...

Intrigued? Head over here for a very interesting story. 

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Here we go then - Great Britain's William Fox-Pitt is out on the course on Chilli Morning.

He's the current leader - but has his work cut out to match the run of Australia's Christopher Burton...

Watch it here.

Image source, Getty Images

Keep an eye out for Rami Anis, who is competing for the Refugee Olympic Team, later on.

Anis made the perilous journey from Aleppo, in war-torn Syria, to Belgium in 2015. He travelled to Turkey to meet his brother where, like hundreds of thousands of other Syrians, they took the boat across the Mediterranean, risking their lives for a new to start a new one. 

"If the boat had toppled I would not only swim and save my own life, I would try to help as many people as possible,” he told Time magazine., external

More on his remarkable story here.

Team GB's 5,000m runner Eilish McColgan is preparing for her competition with a freezing cold bath. It's not all glamour, you know!

Life pro tip: Get your arm pits under as quick as you can. It's better in the long run.