Emma Pooley's run has begun.

It is so blustery out there that she almost needs flying googles more than the teardrop helmet.

This is the scene on the start ramp.

The starter is giving them a decent shove to make sure they don't have an impromptu bunny hop off the stage.

Team GB's Alex Gregory was due to race as part of the men's four this afternoon in their semi-final but as we brought you earlier, all races have been postponed.

The winds at Lagoa have put paid to the rowing today with GB crews left frustrated as their races were postponed

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

Helen Glover and Heather Stanning were aiming to maintain their five-year unbeaten record in the women's pair semi-final, while Richard Chambers and Will Fletcher were also set for the lightweight men's double sculls semi-final.

The men's four of Alex Gregory, Constantine Louloudis, Moe Sbihi and George Nash, who were aiming to reach the final, are also left waiting. 

Image source, Getty Images

Last to go on this course is American Kristin Armstrong who retired after successfully defending her time-trial title at London 2012.

Team-mate and current hour record holder Evelyn Stevens, who won three stages, including a time trial, at July’s Giro Rosa, is another threat.

World champion New Zealander Linda Villumsen is second from last with Belgium's Anna van der Breggen - victorious in Sunday's road race - going for a double. She is fourth from last.

Chris Boardman
Olympic cycling champion on BBC TV

The riders are going to have to be so careful in these conditions. There is less climbing than I was expecting but it's good time-trial territory.

With the potential for rain, one of the things I'd have done straight away is a get a set of race wheels with road tyres on - thicker and not time trial tyres. That would make a big difference today but other than that the preparation should be the same. 

If it stays cloudy, we've had a good amount of rain over night, it should probably stay wet. If the surface is wet everyone has to ride the same way.

The rain and wind that has postponed the rowing for the day is going to make for a tough grind of a time trial.

The women's 30km route, external tracks the coast before heading inland to tackle the Grumari (1.3km long at 9.4% average gradient average) and Grota Funda climbs (2.13km at 6.8%).

First down the ramp is Poland's Anna Pilchta. The rest of the field follow at 90-second intervals.

Great Britain's sole representative Emma Pooley gets going at 12:45 BST, 15th from last.

Sir Steve Redgrave
Five-time Olympic rowing champion on BBC TV

There were complaints from sailing yesterday that there was not enough wind - they are going to be happy today.

We have lost two days in the first four in the rowing programme. It will be interesting to see if we can get through the next few days.

"When I was standing at the podium and getting this medal I simply felt euphoria. I simply forgot everything; my hard trainings, my tears, my regrets. It was just a feeling of light and happiness inside."

Karina Goricheva gets giddy as she feels the power of the podium after winning bronze in the women's 63kg weightlifting.

Image source, AP

Emma Pooley is set to go in the women's time trial soon. The race begins at 12:30 BST and the Brit is scheduled to start her race at 12:45 BST.

Watch as she talks about her journey into cycling...

If you think you'd like to have a go at cycling then have a look at our guide.

Alistair Magowan
BBC Sport in Rio

Now hearing that racing has been postponed for the day. 

"I think we're just better-looking."

New Zealand men's pair rower Eric Murray jokes about why he and Hamish Bond are unbeaten in 68 races.

Image source, Getty Images

The rowers are back in their boathouses.

For Britain, Heather Stanning and Helen Glover were aiming for the women's pair final while the men's quad are in a final.

Both will have to wait out this spell of windy weather though.

Alistair Magowan
BBC Sport in Rio

Another blowy day at Lagoa means the rowing has been delayed.

Will keep you posted but likely to be a frustrating day. 

The top of the medal table is red, white and blue. Not Team GB's shades though.

The United States - tipped to come out on top of the pile by both Sports Illustrated and statistical analysts Gracenote , external- are into a lead they may never give up.

After postponement on Sunday due to high winds, it appears the weather has struck Lagoa again and the decision has been made to delay today's events...

Defending Olympic champions Helen Glover and Heather Stanning are due first at 12:30 in the semi-final of the women's pair.

Image source, Rex Features

Here's a man for whom 19 Olympic gold medals just aren't enough. Number 20 for Michael Phelps came in the 200m butterfly but he wasn't on that mark for long, helping the US win the men's 4x200m freestyle relay for his 21st title.

Image source, EPA

There would surely be easier targets for a pickpocket in Rio than a medal-winning judoka.

Belgium's Dirk Van Tichelt was out near Copacabana celebrating his 73kg category bronze when team-mate Matthias Casse had his phone swiped.

Van Tichelt gave chase and ended up with a black eye. 

No word on what happened to the thief and the phone from the Belgian media., external I don't think it can have been pretty though.