Amy Williams
2010 Olympic skeleton champion on BBC TV

"You are in the gym doing strength sessions every day to get that power off the block.

"Your head is also pushed into the ice by the G-force, so you have to have a very strong neck. You do similar things to rugby players in regards to strengthening the neck in training."

New leader, Canada's Sarah Reid, but Yarnold still has about a minute to play with. Still, we're getting to the business end.

Roni Steel:, external Feeling a bit sick waiting for this!!

T.W. Lawrence:, external The sound of scraping ice and enthusiastic commentary only fuelling the tension.

Jane:, external Take a running jump on to a tea tray then slide at 127km/hr head first? Nope. But it's aces to watch others do.

Seven to go, including Yarnold. The current leader, Germany's Anja Huber, has a time that would leave Lizzy Yarnold more than a minute to complete her run. Earlier, she took only 57.91 seconds.

Callum in Bristol: Sprinting from Bristol Temple Meads to my girlfriend's flat to hopefully see the winning slide!! Make us proud Lizzy!!!

Are you in position? Watching on TV, or here at the top of this page? Nervous? Watching alone, or sharing with friends? Excited?

I'll be honest, I feel a little tense.

Image source, Team GB on Instagram

Team GB on Instagram:, external "Lizzy's 'Yarny Army' showing their support in Sochi."

Nick Hope
BBC Sport in Sochi

"Cannot begin to describe how nervous the British fans, commentators, journalists and photographers are... but then imagine what Lizzy Yarnold's parents are going through!?

"Clive and Judith have done countless interviews today and their every move is being filmed by camera crews at the moment.

"They know their daughter's life 'could' be about to change forever!"

The Yarnold is waiting in the wings, away from the action, loosening up in a corridor. Dressed in red trousers and and a blue jacket, she skips with all the light-footedness of Muhammad Ali. Nine to run before the Lizzy goes for gold.

Image source, Reuters

Team GB snowboarder Aimee Fuller on Twitter:, external Come on The Yarnold, the whole of the UK is rooting for you. Send it. SKELLY boss!!!

GB men have pulled it back to 6-6 after being 5-1 down in the round robin match v Denmark. Since the break it has been all Great Britain as commentator Steve Cram sums it up: "What a turnaround," he says.

Nick Hope
BBC Sport in Sochi

"Here's you 5 Live commentary team of Elly Oldroyd and Chris Mitchell who are joined by UK Sport director of performance and former British Skeleton performance director Simon Timson."

Dave in Chesham: Re: Andy in Kent (16:53) - Lizzy if it's a girl, Yarnold if it's a boy then? The y can be silent.

Rudman is 0.26 seconds off the pace, behind joint-leaders Mellisa Hollingsworth and Katharine Eustace. She lies fourth and, whatever happens, is out of medal contention. She could finish as low as 16th.

Right then, here comes Shelley Rudman. 13th after the third run, can the 2006 silver medallist improve on that?

To set the scene, the half-cylinder tube of ice that is the track at the Sanki Sliding Centre is bathed in floodlight on this Sochi night. Not only does that give the occasion that extra tinge of drama, but the lights shimmer off the slickness of the ice. As competitors hurtle down, they are accompanied by the ringing bells of the crowd. I wonder if that, and the scraping of runners on ice, is the only thing they can hear?

Andy in Kent: Watching the skeleton from hospital in Gillingham, as the missus is in for our second child.

Amy Williams
2010 Olympic skeleton champion on BBC TV

"These are the perfect conditions for an Olympic race. The ice is firm and the temperature is in the minuses."

The vital fourth and final run that is likely to see Lizzy Yarnold crowned Olympic Champion is under way. Of the 20 sliders, four have gone down the 1300m track. No threat to The Yarnold yet. Shelley Rudman, who ended the third run 13th, goes soon.

Image source, @yarnicorn7

Katy Yarnold, Lizzy's sister, on Twitter:, external "Love this picture of the family support at home!"