Winston Watts and Marvin Dixon will bring the second run to a conclusion and the pair are wobbling, weaving from side to side, as if they've hit turbulence, and come home in last place in 58.81 seconds for a combined time of 1:57.23. It also seems the tank-like Watts cracked his visor during that iffy second run.

Nick Hope
BBC Sport in Sochi

"We haven't had much time together and still have improvements to make," GB pilot Lamin Deen tells BBC Sport. "I feel we'll be getting there tomorrow and top-20 is the target, but whatever happens this time on the ice will really help us come the four-man event."

Image source, Getty Images

Three teams have yet to complete their second runs - including Jamaica - but it is probably safe to say that the Russian first team, led by Alexander Zubkov, will be the overnight leaders thanks to a combined time of 1:52.82, which is 0.32 seconds quicker than the Swiss first team in second.

British halfpipe skier Rowan Cheshire will stay overnight in hospital for further assessment after suffering concussion during a training accident earlier today.

The 18-year-old from Stoke-on-Trent fell heavily on her face at the Rosa Khutor Extreme Park in Sochi and was knocked out.

"It is confirmed that she has a concussion and, as a precaution, will stay at a local hospital overnight for further evaluation," read a Team GB statement. "She will be evaluated further during the coming days before a determination is made about her fitness to compete."

Colin Bryce
Former GB bobsledder on BBC TV

Alexander Zubkov is the star of the Russian team, but he and Alexey Voevoda absolutely hate each other. They don't talk but somehow they have got it together in time for the Olympic Games and they are in gold medal position now.

Colin Bryce
Former GB bobsledder on BBC TV

Everyone looks a little disappointed. They want to get into the top 20 and will have their work cut out tomorrow, but let's not forget that the four-man is very much the more experienced crew. That is where a medal could come from next weekend.

Pauline Ward:, external "Loved Coomes and Buckland, very Gatsby-esque."

Kathryn Roberts:, external "Still can't believe twizzles are called twizzles in the ice skating - surely there's a more technical term?"

And now we move on to the also-rans and among the pack of underdogs is Britain's solitary team. It's a disappointing run from Lamin Deen and John Baines, however, who complete the course in 57.81 seconds - which is 1.24 seconds slower than the pace leaders Russia set. They are currently 22nd and will probably slip further down the pecking order.

Alexander Zubkov steers the Russian first team into first place and he and his team-mate Alexey Voevoda punch the air in delight at surpassing Switzerland's time in the second by 0.11 seconds. The Russians lead at the halfway stage with a combined time of 1:52.82, with Switzerland 1 second (+0.32) and United States 1 (+0.36) third.

Whosh! The American first team, led by Steven Holcomb, are sucking in oxygen as they climb out of the bob after their second run. The pair finished 0.24 adrift of Switzerland's leading time of 56.68 seconds. The Russians, pace-setters in run one, are next.

Zoe Gillings seems to have control of the remote so we will head to the Sanki Slidinc Centre to catch up with the second run of the two-man bob. Switzerland's Beat Hefti, who won last season's World Cup two-man race in Sochi, currently leads.

Image source, @Zoegillings

Team GB's Zoe Gillings,, external who finished ninth in the Snowboard cross this morning: "Brilliant day, adrenaline gone - wiped out on the couch watching bobsleigh... Go GB!"

Sue Barker
BBC Sport figure skating commentator

Disappointment once again for Penny and Nick after another points deduction. They came here with the dream of being in the top 10 but it is not over yet and there a few more couples to go out.

The British pair are deducted a point for an extended lift and end up with a score of 59.33, which is enough to qualify for Monday's free dance but they would have been looking to at least break the 60-point barrier.

Image source, Getty Images

Coomes and Buckland's routine segues from jazz to big band and when the music stops the couple smile. Hugs and kisses from coack Evgeni Platov, but what did the judges make of the routine? There were a few mistakes, to the untrained eye they weren't always in unison.

There's silence before Penny Coomes and Nick Buckland begin twirling around the ice to a jazzy routine. The pair have skating in their genes because Buckland's grandfather - Brian Grummit - was a former British speed skating champion while Coomes's stepfather is former national champion Philip Askew.

Dom:, external "Wow. What an incredible story of Nick Buckland's heart condition."

Tamsin Slater:, external "Watching ice hockey and ice dancing at the same time. Confusing. Style marks in hockey?"

Jonathan:, external "After my career in pensions is done, I definitely want to be a bobsleigher."

Since 2010, the British pair have trained with Evgeni Platov in the US state of New Jersey. "Eight hours a day, every day. One day off," Platov has said.

Coomes and Buckland, though, admit moving to the US has been a costly enterprise. When they sit down to work it out, the Britons say the price of coaching is up to 10 times as expensive in the States as in the UK.

It has been well documented that Nick Buckland went under the surgeon's knife last October to fix a heart problem after being diagnosed with tachycardia, an occasional and dramatic quickening of the heart.

Britain's Penny Coomes and Nick Buckland will take to the ice at around 1815 GMT. Anything over their personal best of 63.66 would be amazing for the pair while anything over 60 (their season's best is 61.76 at the Euros in January where they got bronze) would be good. Basically, Coomes and Buckland will be looking to score more than 60. The pair warming up as I type.