Former 100m world champion Yohan Blake is into the semi-finals of the 200m with a run of 20.13.

Blake finished fourth in the 100m final.

British diver Jack Laugher has narrowly qualified for the individual 3 metre springboard final, 5 days after winning gold in the synchronised event. 

Great Britain's Danny Talbot is through to the semi-finals after running a very decent 20.27 - matching his personal best.

No waiting on a fastest loser spot for him.

Aimee Lewis
BBC Sport in Rio

It's a toasty 28C at the Olympic Park, the smell on suncream is in the air, and silly headwear are everywhere. These Olympics fans will put anything on their heads. And, not that I'm one to tell tales, but some are drinking beer - on a Tuesday afternoon! 

Image source, .

Callum Skinner's Rio Games are over.

He crossed first in the repechage race, but has been crossed off the result sheet after squeezing out an American rival.

He leaves with a gold and silver medal from the team and individual sprint.

Great Britain's Holly Bradshaw is through to the final of the pole vault with a clearance of 4.60m. 

Great Britain's Callum Skinner crossed the line first in the repechage race, but there is a question as to whether he might have dropped down the banking a little early and squeezed out an American rival.

He's through as it stands. But he might be wise to keep an eye on the officials discussions in the centre of the track.

Great Britain's individual sprint silver medallist Callum Skinner has to win his repechage race to make it through to the keirin semi-final.

He is up against some high-class opposition with Germany's Max Levy and Russia's Denis Dmitriev also involved.

Leon Taylor
Olympic diving silver medallist on BBC TV

Jack Laugher will be a lucky boy if he makes it through to this evening's final...

The best 12 divers will make it through but he has had a mixed competition so far. 

We have seen some brilliance and some howlers... 

Laugher is 13th after five rounds. He needs a big last attempt.

USA's Abbey D'Agostino stops to help fellow competitor Nikki Hamblin after both fall in heat two of the women's 5000m.

Britain's Holly Bradshaw is looking good to qualify for the women's pole vault final, clearing 4.55m at her second attempt.

The automatic qualification mark is 4.65m but 4.55m may be enough to get through.

Image source, AP

Image source, Getty Images

Usain Bolt's quest to achieve a 'triple triple' of Olympic golds in the 100m, 200m and 4x100m relay in three consecutive Games continues at the Olympic Stadium today.

Bolt lines up in heat nine of 10 in the 200m, with his race scheduled to start at 16:46 BST.

American Justin Gatlin, beaten to gold by Bolt in the 100m on Sunday, goes in the fifth heat at 16:18.

Britain's Adam Gemili is in heat six at 16:25 with compatriots Daniel Talbot in heat one (15:50) and Nethaneel Mitchell-Blake in heat 10 (16:53).

Image source, Getty Images

There are few stronger favourites for athletics gold in Rio than Croatia’s Sandra Perkovic in the women's discus final. 

The Olympic champion and winner of all five Diamond League contests in 2016, this time last summer the Croat arrived in China on the back of a winning run stretching back to 2010. 

However, the expected gold medal procession ended up being spoilt by Cuba’s surprise world champion Denia Caballero. 

Both Perkovic and Caballero almost missed reaching the final after fouling their first two attempts in qualifying on Monday, although the torrential rain falling in Rio at the time was at least partly responsible for their difficulties.

Perkovic has opened with another no-throw in the big one.