Stefan Kung stays in the hot seat.

Jonas Vingegaard finishes eight seconds slower in the end. A superb ride all the same from a major young talent.

Jonas Vingegaard is nearing the finish, it's going to be close to Stefan Kung's mark...

Geraint Thomas goes through the second check 24 seconds slower than Primoz Roglic.

It's not looking like a good day for the Welshman, unless his plan has been to hold it all back for a massive final section.

Nairo Quintana begins his TT, attempting to limit his losses in far from his favourite discipline.

Rigoberto Uran is putting in another fine ride as he goes fifth fastest at the first time check.

Pierre Latour - a fine TT rider - gets under way to huge roars from the French crowd.

Primoz Roglic goes through 18 seconds down on Stefan Kung.

There were whispers that Roglic's team were 'expecting' to lose 1:30 to Pogacar today. That could well have been sandbagging anyway, but Pogacar is going to have to produce something stunning to get that much on him.

France's David Gaudu is the latest GC rider down the ramp.

A first glimpse of defending Tour champion Tadej Pogacar as he prepares to start.

Meanwhile, Primoz Roglic is nearing the second time check...

Kasper Asgreen couldn't keep up the pace and goes through the second time check 17 seconds down on Stefan Kung.

Geraint Thomas goes through the first time check 25 seconds down on the fastest mark.

The Ineos Grenadiers rider needs a huge middle section to save his race ambitions here.

Jonas Vingegaard has slipped back a bit on the middle section - but he's still only five seconds down on Stefan Kung at the second time check.

Primoz Roglic has taken a battering this Tour but he's putting in a very impressive, defiant ride so far.

He goes through the first time check just six seconds down on Asgreen and Vingegaard.

The middle section seems to be the toughest of the three parts to this course, so plenty of work to do still.

More contenders to Kung's provisional crown.

Danish duo Kasper Asgreen and Jonas Vingegaard have both gone through the first time check a second quicker than the Swiss.

Primoz Roglic is more bandage than man beneath his skinsuit, having sustained a lot of damage in crashes over the first few days.

He doesn't look very comfortable on his TT bike - the opposite of Stefan Kung's smooth, precise style.

We'll have to wait for the first time check to see if that discomfort is translating to lost time.

Geraint Thomas rolls down the start ramp. How will that shoulder - dislocated and popped back in on the road - hold up?

1. Stefan Kung (Swi/Groupama-FDJ) - 32:19
2. Mattia Cattaneo (Ita/Deceuninck-QuickStep) - 32:55
3. Richie Porte (Aus/Ineos Grenadiers) - 32:55
4. Mikkel Bjerg (Den/UAE Team Emirates) - 33:01
5. Magnus Cort (Den/EF Education Nippo) - 33:07

Meanwhile, Richie Porte finishes third overall as it stands, 36 seconds down on Stefan Kung.

That's a very handy ride by the Australian. Thomas and Carapaz will hope to have learned from Porte's ride too.

Primoz Roglic rolls down the start ramp.

A massive ride needed for last year's runner-up.

Not long before two of the biggest names in this year's race - and two of the pre-race favourites - start, looking to make amends for a tough start.

Primoz Roglic and Geraint Thomas have both been battered and bruised over a crash-filled first four stages.

What do they have in them today? Can they surge back up the GC?

European time trial champion Stefan Kung duly delivers the quickest time of the day so far - 32:19.

That's 36 seconds faster than Mattia Cattaneo.

And a very high bar has been set for all the big names yet to start.