Members of Team GB's rowing team Alex Gregory and Alan Campbell talk about the psychology of rowing, and the pressures that medal hopefuls face. 

Could Britain's first rowing medal of Rio 2016 come in the first final of the Games?

Jack Beaumont, Sam Townsend, Angus Groom and Peter Lambert go in the final of the men's quadruple sculls.

Three of the current squad were narrowly edged out for silver at the 2013 World Championships but injury and illness have hampered their progress since.

Australia and Estonia occupy the centre lanes and the top of the bookies' blackboards.

Actually I doubt there are many tic-tac specialist down at the Lagoa stadium.

Anyway, here we go.

Britain's Naomi Folkard looks to hold her nerve in the women's individual archery last 16 today. 

A place in the quarter final is at stake but she has to beat Brazillian Ane Marcelle dos Santos. No doubt the home crowd will be in her corner.

Watch live using the player above from exactly 14:18 BST...

Image source, Getty Images

Paul Budd, head of Team GB's Leander Club in Henley, talks to BBC Berkshire about the 111 medals that British rowers have got during the Olympics, and who he thinks is likely to make it 112.  

Martin Kaymer hit a birdie on the first hole on the Olympic golf course...

At the moment Marcus Fraser of Australia and Graham Delaet of Canada are leading on four under. Great Britain's Danny Willett is level par through three.

Watch live here.

Image source, .

Alistair Magowan
BBC Sport in Rio

Image source, BBC Sport

Speaking of times, the GB men's four, who are hotly-tipped for a fifth consecutive gold in this race, were more than five seconds slower than the Australian crew in the other semi.

Only an Aussie mistake at the World Cup in Lucerne in June denied them a win against the British four. Plenty to row for in Saturday's final then. 

Let's have a look at those splits then.

The Australian four went through 500m at 1:30 and 1000m in 3:04.

By contrast Great Britain's times were 1:29 and 3:02.

Don't be fooled by the finish time. This final will be tighter than piano wire.

James Cracknell
Double Olympic Rowing gold medallist

The Australian men will not be looking at the winning time.

They will be looking at the splits - at the GB times at 500m, at 1000m. That is the first half of the race when our four will have been putting it all in to get into position in the race.

After that they will have been keeping their cards covered, not letting on how much they have got in reserve for the final.

Great Britain paddle over the finish line like they are aboard a summer holiday pedalo.

They are saving some of their muscle for the final.

The winning time is 6:17, some six seconds slower than the Aussies. 

But James Cracknell has some words of warning about reading too much into that time.

Great Britain are chugging away, maintaining their stranglehold on the semi-final.

They are 5.51 seconds clear at 1500m.

Great Britain are led out by Constantine Louloudis and they are looking as slick as an oiled eel.

They are leading from the front.

They are 3.27 seconds up at 500m.

That is up to 5.07 seconds at 1000m.

Canada in second are choking on spray.

Get Inspired
Get Inspired

Have you been pretending to be an Olympic gymnast in your front room this week? Perhaps you've been engrossed in the kayaking?

Whatever is catching your eye during the Olympics, BBC Get Inspired have rather helpfully put together a guide to becoming involved in each and every sport you will be watching on your television over the next couple of weeks.

For more information, head here.

Image source, BBC Sport

Australia finish in a class of their own. They are three and a half seconds better than South Africa in second.

But Italy sneak in third after putting in a supreme 43-stroke-a-minute lung-buster of a final 500m to overhaul a big-gun American boat.

The winning time was 6:11 - nearly 30 seconds off world record pace, but the conditions are tricky.

Next up, Great Britain.

Australia are laying down the gauntlet.

They are nearly five seconds clear of the United States in second.

The drama is unfolding behind where Italy - the 2015 world champions - are fighting hard to stay in.

Time for blue ribband event for the British men.

The men's four.

The first semi-final features the Brits' most dangerous rivals - Australia.

South Africa, Norway and Poland book their places in the final of the lightweight double sculls.

...But the American really doesn't like his first shot. 

Not a good start for Gerry Lester Watson... 

Image source, .

Image source, .

At 15:04 BST Katherine Grainger and Victoria Thornley will try and win their second gold medal in the women's pairs final. 

The pair speak about how their friendship and mutual respect for one another helps them compete at the highest level of their sport.