Sir Chris Hoy
Six-time Olympic cycling champion on BBC One

Great Britain's Mark Cavendish is second in the omnium, with only one event left - the points race. That is coming up in about 40 minutes. 

The points race is the big one, there are four or five guys still in position for the gold medal and Mark Cavendish can do it, we are going to give him a big cheer.

He doesn't have to do this (be in Rio), but it shows how much he cares about the Olympic Games. He wants this, he really wants this. The whole of Great Britain is behind him and we will all have our fingers crossed for him.

Image source, BBC Sport

Spare a thought for Irish sailor Annalise Murphy's brother, Fin, pictured here in a fetching suit.

He's flying home tomorrow morning and now the Laser Radial medal race has been postponed until tomorrow, he could miss out on his sister winning a first sailing medal for Ireland in 36 years.

"They are the top 10 sailors in the world, I'm sure they'd have been able to manage in this wind," he says. 

Annalise's mother Cathy is also here, and having sailed for Ireland in the 1988 Seoul Olympics, she also thinks organisers called it off "too soon".

Fin says he's going to try and get his flight changed in order to stay. Whoever the airline is, please be kind to him! 

Luke Reddy
BBC Sport in Rio

Image source, .

If drag racing ever gets into the Olympics, Rio would be able to offer the Deodoro region up as a standout option. The streets here are long and never ending, you could hit some serious speed.

After a couple of miles or so walking to the hockey we seem to be getting the fumes and smoke of a bush fire as everything suddenly tastes of smoke.

It's been baking here today, so much so that for the first time organisers have put water stations out on the road connecting venues. 

Image source, .

Laura Trott goes in the ninth and final heat of the individual pursuit, she takes on current leader Tatsiana Sharakova of Belarus.

She's a former European champion at this event. She'll be a tough test. 

Fencer Laurence Halsted popped down to the track to cheer on Mark Cavendish.

Laura Trott won the omnium in London 2012 and is second after one event so far today.

Up next, she goes in the individual pursuit. Golden girl again?

Image source, Sport England

Gripped by the track cycling on display in Rio? Find out how to grab a piece of the action yourself with Get Inspired's guide to cycling.

Sir Chris Hoy
Six-time Olympic cycling champion on BBC One

It was a great performance for Mark Cavendish to get in the top three in the flying lap and the event is heavily weighted towards the last race, the points race.

It is not going to be easy for him, but he has a chance.

That points race begins at 21:23. Before then it's the individual pursuit in the women's omnium.

Tom Rostance will talk you through it.

Sir Chris Hoy
Six-time Olympic cycling champion on BBC Two

It was a great performance by Mark Cavendish in the flying lap to get top 3. It’s all to play for. It’s not going to be easy and it’s a very hard race to call, but he’s got a great chance.

So Cavendish is second overall, 16 points behind Viviani. However, huge points are on offer in the points race - you can pick up 20 just for lapping the field in the 40km race.

Image source, .

Alistair Magowan
BBC Sport in Rio

And now the women's Laser Radial medal race is called off because it's too windy.

Farcical! 

Cavendish moves up to second outright, but has lost ground on Viviani, who now has a 16-point lead.

The final event, the point-laden points race, begins at 21:23.

Image source, Getty Images

Cavendish finishes third in the flying lap, pushed down a place by Italian Elia Viviani, who was the overall leader going into the flying lap and remains there with one event to go.

Chris Boardman
Olympic cycling champion on BBC TV

Mark Cavendish will have to be happy with that. A personal best again by some considerable margin. A great ride from him and a very consistent performance.

Image source, Getty Images

12.793 seconds - a personal best for Cavendish. It's the second-fastest time that we've seen. There are still two riders to go.

There's the bell, power in the legs...

Right then, here comes Cavendish. Around the top of the bank, gaining speed...

Anna Thompson
BBC Sport in Rio

There's a raucous crowd in a sauna-like velodrome tonight. There's plenty of support for Mark Cavendish, including an Isle of Man flag for the Manxman.

Cavendish is getting ready for his flying lap and gets his legs working with a gentle trip around the cycle centre.

Image source, #bbcrio2016