So far, so good for Nick Dempsey who leads the men's RS:X windsurfing after seven races.

And it isn't looking too shabby for Great Britain's Nicola Groves and Ben Saxton, either. They lead the Mixed Nacra 17 class after four out of 12 races. Still two more races left for them today to build on their two point lead.

Golf is back at the Olympic Games for the first time since 1904, and the men have been out completing their first rounds today.

The early leader is Australia's Marcus Fraser, who carded nine birdies in a round of 63, finishing eight under par.

Britain's 2016 Masters winner Danny Willett finished level par on 71.

Compatriot Justin Rose is currently three under par at the 17th, but the real story of his round has been the first hole-in-one in an Olympic golf competition.

To mark your card, Great Britain's Naomi Folkard meets Hyejin Chang of South Korea in the last eight of the women's archery at 19:39. While that's to come, there's been other Brits in action while we focused on canoeing and rugby...

Luke Reddy
BBC Sport in Rio

Image source, .

Fiona Pennie couldn't quite produce but she's been gutsy in fighting back from missing 2012 to get this close. An early penalty was a bit sloppy and then it's always catch up, especially when the Spanish paddler has set such a brilliant run.

Still, Pennie as she crosses the line can be proud. Sixth in an Olympic Games is still something.

Image source, .

So, after a breathless half hour, where are we up to?

Andy Murray is battling back against Fabio Fognini, but Fiona Pennie has missed out on a medal in the women's K1.

The big news from a GB perspective is that the men's sevens team are through to the final and will meet Fiji for gold at 23:00.

Their win over South Africa was sealed with this try...

Bad news for Fiona Pennie, but some long awaited good news for Andy Murray. He stops the rot against Fabio Fognini, breaking the Italian to get back on serve in the decider. Trademark punch of the air, roar to wake the dead from the defending champ.  

Rob Nothman
BBC Radio 5 live

Fiona Pennie holds her paddle up to her face. She looks crestfallen. She has not made on it a day David Florence and Richard Hounslow have won a silver medal - but she will not leaving with a medal.

No medal for Fiona Pennie. The penalties leave her fifth. Without them, she would have been in third.

Luke Reddy
BBC Sport in Rio

That's an obscene time by the Spanish paddler to lead. She's taken three seconds out of the field.

She's battling to get back. The pace is there, but it's another penalty! Medals could be gone...

Helen Reeves
Olympic bronze medallist and BBC canoeing pundit

There will be nothing but want in this paddling. Fiona is a driver right from the start - an aggressive paddler, just as she is setting out on this course.

Aggressive start, but touch at gate four. Two seconds added. Tough from here...

Spain's Maialen Chourraut leads on 98.65 seconds. Fiona Pennie is at the start. Arms outstretched, flags in the crowd. Push off...

Not a second to draw breath. Straight to the canoeing. Fiona Pennie goes next. Can she add to the two medals won already?

All over! Great Britain will win a sevens medal! Fiji await at 23:00.

You're kidding. Hooting goes, ball kicked. Ref says ball went out just before. SA line-out...

It's like a monster truck rally out there now. Brick hithouses. 27 seconds...

GB are a red line of defence. Are South Africa through? In at the corner, surely? What a tackle! Marcus Watson. Less than a minute...

Two minutes to go. South Africa knocking...

While Great Britain head for a medal in the sevens, Andy Murray could be heading out of the tennis. The defending champ has lost eight straight games to Fabio Fognini and has been broken five times.