Chris Froome gets out of the saddle and stomps his way along the finishing straight.

It is enough to nudge Jonathan Castroviejo out of third slot, but Fabian Cancellara is untouchable on the top step.

Tom Dumoulin comes in 47 seconds behind Fabian Cancellara.

Silver at best for him. 

Can Chris Froome force his way on to the podium? The title is gone...

Team GB's Sally Conway is into the Olympic semi-final!

Another win by Ippon this time against Linda Bolder.

She will continue her quest for an Olympic medal later this evening.

Fabian Cancellara finishes his extraordinary ride.

The Swiss is more than a minute ahead of the rest of the finishers.

Chris Froome and Tom Dumoulin are going to have to pull a rabbit out of the hat to unseat him.

Only five riders left out on the course.

David McDaid
BBC Sport Olympic sports reporter

Geraint Thomas has been pushed out of the medals... Can Chris Froome make up 32 seconds? Very doubtful    

It wasn't wise to write the All Blacks off quite so early, was it? Great Britain survive by the skin of their teeth and New Zealand must hope they have done enough for a best third-placed spot.  

This is going to be a thrilling finish. Great Britain have been run ragged in the second period. What happened to the All Black at half-time? 10 seconds...

The All Blacks are back in this, two tries in the blink of an eye after half-time. Still more than two minutes to go...

Image source, BBC Sport

Sally Conway is back on the mat in the women's -70kg against Linda Bolder of Israel, fresh from her victory over the World Champion in the last round.

The match is under way.

Australia's Rohan Dennis comes home to take up second spot among the finishers behind Spain's Jonathan Castroviejo.

He was hindered by a broken tri-bar in the closing stages.

Luke Reddy
BBC Sport in Rio

Image source, .

Floodlights on here in Rio, it's not even 1pm. It's like an afternoon in the valleys.

Is there anything the man can't do?

We have just stumbled on this little gem on the European Tour's Youtube channel.

American swimming legend Michael Phelps, in the wake of his 2012 heroics in London, sinking a 53-YARD putt. It is believed to be the longest ever recorded on television. 

And a third for Great Britain! Dan Norton runs on to a grubber kick. At half-time, GB have pretty much sealed top spot in their group, but the real story is the All Blacks. They can only hope for a best third-placed finish.

Great Britain's Geraint Thomas is home and hosed after a characteristically whole-hearted effort.

He stops the clock at 1:14:52.

That has him sitting on the second-place stool, behind Spain's Jonathan Castroviejo.

On-course leader Fabian Cancellara is carving down the descents out there.

Luke Reddy
BBC Sport in Rio

Image source, .

Great Britain are out and facing early attacks but counter nicely as Mark Bennett dabs down for the first try of the match.

How do you prepare for broadcast when there are so many players in this competition? Cue cards as 5 live touch line reporter Sonja McLaughlan shows me.

Image source, .

Ideal for start from the men in red, Mark Bennett scoring under posts and James Bennett running in almost straight after. Extras added on both occasions. GB, remember, are looking to seal top spot in their pool.

Anna Thompson
BBC Sport in Rio

We've been having a bit of fun with the Olympic body match here in the BBC's offices in Rio.

Gymnastics summariser Craig Heap loved it - especially when he was matched with Team GB equestrian rider Pippa Funnell!

And Athens swimming medallist Steve Parry could not believe there were women who matched his impressive frame competing here in Rio - all 6ft 4ins and 104kg of him - but body match duly delivered. 

Image source, BBC Sport

Image source, BBC Sport

David McDaid
BBC Sport Olympic sports reporter

The scene at the first bend of the time trial earlier today. Just 100m from the start line. Workers using sand and sponges to soak up water to stop riders slipping off.