Argentina have pulled one back courtesy of Florencia Habif. A few mistakes at the back from GB and it's a fine thwack down the middle by Habif to beat keeper Maddie Hinch.

Alistair Magowan
BBC Sport in Rio

Met GB sailor Nick Thompson's fiance, Olivia, and her family down here on Flamengo beach yesterday. They are known as 'Team Thompson'.

The Jaggers, who also comprise dad Graham, mum Christine and sister Chloe were proudly sporting their home-made T-shirts and insisted that double Laser world champion Thompson could turn things around after he finished 12th overall after four races.

And they were right. Thompson finished second in the first race of the day, which will move him up the field. 

And there's the third from Great Britain! Sophie Bray gets the final touch in a scramble in front of goal and chips it over the keeper. It's been a cracking performance from GB against the Champions Trophy holders

Chloe Tutton and Molly Renshaw are through to the semi-finals of the women's 200m breaststroke as the fourth and fifth fastest qualifiers.

Tutton (two minutes and 23.34 seconds) and Renshaw (two minutes and 23.37 seconds) are back in action tonight from 03:11 BST.

Got all that? Cancelled all your plans? Excellent. While we wait for Great Britain's pursuit of the precious metals, I can let you know what else is happening around Rio. A few people we won't be seeing for a while are Andy Murray, Johanna Konta and Rafael Nadal....

20:05 - did I say we'll need to split ourselves in two? Try three. As soon as the diving and gymnastics finals begin, Sally Conway competes in the semi-finals of the -70kg judo. Win there and she's guaranteed a medal.

20:00 - again, we'll need to split ourselves in two. Jack Laugher and Chris Myers compete in the final of the men's 3m synchro springboard diving, while Nile Wilson and Max Whitlock are in a star-studded men's all-around gymnastics final.

Helen Reeves
Olympic bronze medallist and BBC canoeing pundit

That was a mature performance. 

Clarke looked nervous at the top but built on it. 

He was strong, tight and used the water very nicely and at the bottom he made sure he was through the gates, taking no risks and it was an excellent run.

Image source, PA

19:15 - we're going to need two pairs of eyes here. Joe Clarke, the man we've just been talking about goes in the K1 canoeing final. At the same time, Tim Kneale and Steven Scott will line-up in the six-man semis of the double trap shooting.

So, Joe Clarke's passage to the K1 final means Great Britain will be going for no fewer than five medals over the next few hours - that's before we even think about swimming in the wee small hours.

I'm going to tell you ho to plan your evening....

Patrick Winterton
BBC canoeing expert in Rio

Great run. Clarke goes into third place and that is the perfect position to start.

Teeth clenched, arms burning. Joe Clarke powers to the finish line in what is the third-fastest time so far. He flexes his muscles in celebration. Clarke will be back for the final from 19:15.

Patrick Winterton
BBC canoeing expert in Rio

This is looking good for Joe Clarke.

Halfway. Sill on course for the final.

So far so good. The gates are moving in the wind. 1.5 secs down on the leader, but good enough...

Patrick Winterton
BBC canoeing expert in Rio

The moment of truth.

What is Joe Clarke going to produce?

Big puff of the cheeks, paddle over the left shoulder. The man from Stoke-on-Trent is away...

Joe Clarke is in the starting gate. The air is grey, the wind is whipping up. The water, naturally, is rapid. 95.68 to beat...