Geraint Thomas third on stage 20
GB's Thomas set to win title in Paris on Sunday
Chris Froome moves up to third overall
Tom Dumoulin wins stage and maintains second overall
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Jakob Fuglsang - 15:07
Bob Jungels - 15:09
Ilnur Zakarin - 15:11
Nairo Quintana - 15:13
Dan Martin - 15:15
Romain Bardet - 15:17
Mikel Landa - 15:19
Steven Kruijswijk - 15:21
Chris Froome - 15:23
Primoz Roglic - 15:25
Tom Dumoulin - 15:27
Geraint Thomas - 15:29
Sylvain Chavanel rolls over the line in a respectable time of 43:25.
The Frenchman is riding a record 18th and final Tour de France.
Expect him to receive a huge reception in Paris tomorrow. The peloton may also allow him to lead the race into the city on the front.
Image source, Getty Images
Image source, Getty ImagesHello.
Adam Yates has just become the first rider to reach the first time check in under 17 minutes.
The Briton should also prosper over the climb in the final section.
Can he keep this effort going through the middle part of the course?
Team Sky boss Sir Dave Brailsford, speaking to ITV4: "People keep saying Geraint is a track rider but he started on the road, joined the British Cycling programme and then spent time on the track.
"He was one of the youngest guys to start a Tour de France when he first rode it in 2007.
"He's never looked too far ahead - he had his track goals, then his road goals - he did a good couple of years in the classics and got to a crossroads: focus on the classics or shift more to a Grand Tour rider and decided to go with the latter.
"The first step was week-long stage races and then it was a question of whether he could develop his climbing. He stepped up to Grand Tours but rode them in support of the other guys and has never before prepared a whole season around being ready for a Grand Tour.
"Winning Paris-Nice in 2016 was a key moment to give him belief and this year he focused completely on the Tour de France/
"We never quite saw what he could do at last year's Giro because he crashed out. This is his first uninterrupted run at the Tour. He rode Tirreno and Romandie with less form than he's ridden them in the past but then winning the Dauphine put himsef in contention to win this Tour de France.
"It gave him so much confidence, with the team riding for him."
Greg van Avermaet is out on course. The Belgian has ridden a superb Tour, spending seven days in the yellow jersey.
He also starts the day 28th on GC, despite being a classics specialist. Can a solid time trial here even move him up the standings?
Image source, Reuters
Mark Cavendish
Winner of 30 Tour de France stages
A 31km test against the clock with a mixture of ups and down on technical roads. It's not going to be someone who can only mash a big gear who is going to win this. It's going to be someone that can make a plan and stick to that.
A lot of guys will go off hard and with a little kick in the last 3km are likely to lose a lot of time even though its less than a kilometre long.
One to watch: Geraint Thomas (GB/Team Sky) - He won the British national time trial title in late June and took the yellow jersey after winning the Tour's opening, albeit shorter, time trial last year.
Soren Kragh Andersen's spell on the hotseat does prove to be a short one.
Michal Kwiatkowksi blasts through the final section and sprints across the line to set the fastest time so far by 1.35 seconds.
The Pole makes 41:42 the time to beat and has provided his team-mates Chris Froome and Geraint Thomas with an excellent mark to target.
Image source, Getty ImagesSpeaking of Adam Yates, the Briton has just rolled down the start ramp.
The 25-year-old saw his GC ambitions derailed by suffering from severe dehydration in the Alps.
He then went off in pursuit of stage wins in the Pyrenees and came agonisingly close only to fall on the final descent of stage 16, under pressure from Alaphilippe.
What can he do in this time trial?
Julian Alaphilippe, winner of two stages and the polka dot jersey elect, is out on the course.
The Frenchman doesn't look remotely fussed with laying down the quickest time he can.
But he's getting a warm reception from the fans at the side of the road.
He's been one of the stars of this Tour, not just his superb, attacking riding but his sense of fun and good sportsmanship - asking his sporting director Brian Holm whether he should wait for Adam Yates after the Briton crashed out of the lead on stage 16.
Holm's answer was 'no' interspersed with some expletives, but Alaphilippe gave Yates a quick tap and a kind word when they rode past each other later in the race.
Image source, ReutersSoren Kragh Andersen smashes Marc Soler's mark, beating it by 31 seconds!
That was a superb ride by the Dane.
How long will it last though? Team Sky's Michal Kwiatkowski just went through the second time check in about the same time as Kragh Andersen.
Soren Kragh Anderson is absolutely flying!
The Dane is about to go quickest overall...
Ooh it's close. But Kung rolls over just under four seconds down on Soler and moves into third overall as it stands.
Kung is an excellent pure time trialler, but it does appear this course rewards climbing skills too.
Stefan Kung is driving towards the line. Can he get inside Marc Soler's time?
Education First's Lawson Craddock sustained a broken shoulder blade in a heavy crash on stage one of the Tour de France.
He spent the next few days desperately hanging onto the back of the race, trying to carry on while nursing his injuries.
He pledged to donate $100 for ever stage he finished to his local velodrome in Houston, which was badly damage by Hurricane Harvey last year.
Against all odds, the American completed the time trial earlier and will ride into Paris tomorrow. Stunning.
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Right, hopefully that's the end of that palaver.
Marc Soler is finally restored to the lead, 0.05 seconds ahead of Michael Hepburn.
It could be all immaterial soon - Soren Kragh Andersen has just gone quickest at the second time check.
Image source, ReutersBit of confusion now as to whether Marc Soler was actually quicker than Michael Hepburn.
The two keep switching places on the online and TV graphics...
Here is what the riders are tackling today.
As Soler has just proven, riders with the ability to climb and time trial to a high standard can make up serious time over the Col de Pinodieta.
The top four on GC could be in with a great shout of winning the stage, provided it doesn't absolutely belt it down over the next hour or so.
Image source, Tour de FranceMy word. Movistar's Marc Soler finishes just five hundredths of a second quicker than Michael Hepburn!
The Spaniard absolutely blitzed the final past of the course, which includes a steep 900m climb.
Image source, ReutersMarc Soler might be threatening Michael Hepburn's time though.
The Movistar man is flying towards the line....