Aimee Lewis
BBC Sport at the Olympic Stadium

The floodlights are now at full wattage, lighting up this glorious stadium on a balmy London evening. It’s after 9pm and it’s still 23C - that’s what you want from a summer. 

There’s plenty going on in the field, Katarina Johnson-Thompson thrilling in the high jump, the sand sweepers (pretty sure that's their official titles) earning their corn as the men’s triple jump has begun. 

But at the far end of the stadium is Renaud Lavillenie, in supreme form, cleaning 5.90m in the pole vault upping it to 1.95m. The Frenchman has yet to lose in this stadium and he’s unlikely to do so tonight.

The men's Emsley Carr Mile is under way. 

This annual UK-based event began in 1953, inaugurated by Sir William Carr in memory of his father Sir Emsley Carr, who was a newspaper editor famous for his charitable wartime efforts.  

Previous British winners include former Olympic champion Lord Sebastian Coe and Steve Ovett.

Tradition lives on.

Britain's Eilidh Doyle: "I am really annoyed because I made the same mistake in Monaco and I was feeling really strong and lost a great position.

"I've had some hard races recently but hopefully I can iron out those mistakes for Rio."

Image source, Getty Images

Pierre-Ambroise Bosse has bossed it (sorry).

The Frenchman managed to hold off Canadian Brandon McBride to win in 1:43.88 - a season's best.  

Ferguson Cheruiyot Rotich finishes in third with London 2012 silver medalist Nijel Amos in fourth. 

A shout out to Charlie Grice of Britain, too. He secures a personal best 1:45.53 and comes in ninth. 

Botswana's Nijel Amos is up next in the men's 800m.

He was beaten into second by a sublime run from David Rudisha at London 2012. 

Britain's Charlie Grice is also competing in this one. 

Colin Jackson
Two-time world 110m hurdles champion on BBC TV

I hope Eilidh Doyle looks back at this and gets the real difference it makes when you chop your stride like that before the final hurdle. She was full of running but then the brakes go on and she gets caught.

Gaaaaah, it was there for the taking for Eilidh Doyle but she just lost momentum before the end.

And you can't do that with Dalilah Muhammad on your tail.

The American - the fastest in this event this year - skips over to win it and Doyle finishes fourth.

It was fairly easy for Muhammad in the end. She finished in 53.90 - a full second slower than her season's best.

Denmark's Sara Petersen is in second and South African Wenda Theron Nel comes in third. Both secured their best times of the year. 

Kirsten: Favourite moment of 2012? Watkins & Grainger "we've just won the Olympics. We're going to be on a stamp tomorrow."

Nige Smith: Jess Ennis sprinting down the back straight in the heptathlon, smashing the gold medal. Sheffield's finest.

Over in the high jump, Katarina Johnson-Thompson has equalled her personal best by clearing 1.92m.

Fellow Brit Morgan Lake has set a season's best at the same stage. 

Image source, Getty Images

Eilidh Doyle, nee Child, will soon be out of the blocks in the women's 400m hurdles.

The Scot comes into this race off the back of a win in the Diamond League in Monaco last weekend. 

France's Jimmy Vicaut, who's been in excellent form this year, drives over the line in 9.96 to claim the best heat time overall.

Jamaica's Julian Forte claims a season's best in second (10:05) and Churandy Martina of the Netherlands in third (10:08)

Britain's Richard Kilty comes fifth, but his 10:15 is enough to advance to the final.  

Image source, Getty Images

The next heat for the men's 100m is about to get under way.

Britain's Adam Gemili was due to be running in this one but he's been a bit sickly this week, so he's sticking to the 200m only.

So coming up now we have Richard Kilty and Harry Aikines-Aryeetey running in front of a home crowd. Richard Thompson of Trinidad and Tobago takes Gemili's place on the blocks. 

Colin Jackson
Two-time world 110m hurdles champion on BBC TV

There are seven athletes in that heat going to Rio so it wasn't an easy race. CJ Ujah blasted out of the rocks and just managed to hold on.

I am little bit surprised about the time because I thought it would be faster given the quality of the field.

Image source, Reuters

Big smiles from 19-year-old Morgan Lake as she makes the perfect start in the high jump and clears 1.89m. 

Fellow Brit Katarina Johnson-Thompson takes a slower run-up but also goes over without any drama. 

That was bloomin' close.

CJ Ujah makes a brilliant start and just about sneaks over the line first in 10:14. 

American duo Marvin Bracy and Michael Rodgers also make it through to the final in 10:17 and 10:19 respectively.

There's six British men involved in the men's 100m heats. 

James Dasaolu, CJ Ujah and Ojie Edoburun all go in the first heat, while Adam Gemili, Richard Kilty and Harry Aikines Aryeetey are in the second wave.

Dasaolu, Gemili and Ujah - along with James Ellington - took the men's 4x100m title earlier this month. 

Image source, Getty Images

Michael Johnson
Four-time Olympic gold medallist on BBC TV

I was not impressed with Christine's run. She's got some work to do between now and Rio. I didn't see any great lift in her legs at the end. Her face looked liks she was struggling but that's one of the easier things to work on, a  bit of speed endurance.

A clear winner in this one - Shaunae Miller of the Bahamas blitzes over the line first in 49:55 - the fastest time in 2016.

She also extends her lead in the Diamond League. 

Jamaican Stephenie Ann McPherson (50:40) finishes in second while American Natasha Hastings (50:49) comes in third. 

London 2012 silver medalist Christine Ohuruogu struggled over the last 40m and finished in fifth but she gets a season's best of 51.05. 

Emily Diamond, Anyika Onuora and Seren Bundy-Davies fill the back of the field in seventh, eighth and ninth. 

Image source, Getty Images