Jarmila Kratochvilova's world record time of 1:53.28 in the women's 800m has stood since 26 July 1983! Thumb up if you weren't even born then.

Jemma Reekie is up first for Team GB in heat one.

Sonia Oxley
BBC Sport in Paris

Great news for GB's Zac Perzamanos - he's made it into the men's trampoline final as the seventh best qualifier.

Not long to wait until the final, which starts at 18:50.

The scores are wiped for the final so all eight gymnasts are starting from scratch. But this time it's one routine only... pressure.

The top qualifier is defending champion Ivan Litvinovich, who won for Belarus at Tokyo 2020 but is now here as an Individual Neutral Athlete (AIN) because of the ban on his country over its support for Russia's invasion of Ukraine.

BBC iPlayer

GB's Zak Perzamanos has qualified for the trampolining final and you can watch him in action now.

Can he emulate team-mate Bryony Page and take home the gold?

Harry Poole
BBC Sport in Paris

Earlier this year, BBC Sport challenged a selection of runners to keep up with Keely Hodgkinson's 800m pace on a treadmill.

And you won't be too surprised to hear they found it pretty tough going.

Based on Hodgkinson's then personal best of one minute 55 seconds - a time she has now improved to 1:54.61 - participants had to hang on as the treadmill speed was raised to 25km an hour.

Many struggled to get up to the pace, never mind maintain it, and even Hodgkinson admitted it was a bit of an eye-opener to just how fast she can run.

"How do you do this?!" and "that was horrible" were some of the reactions.

The Briton will be hoping nobody can keep up with her as she goes after her first global gold here in Paris, but first she has a couple of rounds to navigate safely.

Dame Jessica Ennis-Hill
London 2012 Olympic heptathlon champion on BBC TV

Keely Hodgkinson, the confidence she has had this season.

She has come into the outdoor season and has been on fire from the very start. l hope it's going to be a gold as she has had so many silvers!

20:20: Athletics - men's 10,000m final

20:35: BMX - men's and women's (Beth Shriever) racing final

Dame Jessica Ennis-Hill
London 2012 Olympic heptathlon champion on BBC TV

GB have gelled well as a team and they ran a very controlled race.

They ran a great relay.

Lorenzo Musetti had the chance to inflict an early break, but he misses his break point and Novak Djokovic offers no second chances, getting the hold shortly after.

Hard to believe for a man who has 24 Grand Slam singles titles, but Djokovic has never won Olympic gold.

His best result at a Games was back in 2008 at Beijing when he took home the bronze medal.

Dame Denise Lewis
Athens 2000 Olympic heptathlon gold medallist on BBC TV

Image source, Getty Images

It requires not making any mistakes, some of the changes were a bit scrappy.

But, Great Britain produced strong times from all of the runners.

The final of the 4x400m mixed relay final is tomorrow (Saturday, 3 August) at 19:55 BST.

Steve Cram
Athletics commentator on BBC One

Great Britain stay strong and qualify for the final!

For the British team that is a good solid run and it's a British record. Great confidence boosting for them.

Great Britain come home in first place. Well done Team GB - with a British record of 3:10.61 to boot.

Netherlands cross the line in second and Italy are in third place.

Nigeria are fourth and Ireland are fifth.

Can Great Britain qualify in the top three in the mixed 4x400m relay?

Sam Reardon will lead us off from lane four followed by Laviai Nielsen, Alex Haydock-Wilson and Nicole Yeargin.

Image source, Getty Images

So, who is the man hoping to stop Novak Djokovic from getting his hands on a gold or silver Olympic medal?

The Italian knows all too well just how good the 24-time Grand Slam champion is.

Musetti fell in the semi-finals of this year's Wimbledon to Djokovic and was also knocked out of the French Open third round by the Serb.

The 22-year-old, who became a father in March, lives for tennis so much he has a tattoo of a racquet on a graph of his own heartbeat on his left arm.

BBC iPlayer

Image source, BBC Sport

If you're into your Track and Field, you really need to check out two fantastic documentaries on BBC iPlayer, about the careers of Linford Christie and Daley Thompson. We've watched them and can confirm they are very good.

Michael Johnson
Four-time Olympic gold medallist athlete on BBC TV

I have heard this track is fast. The track is mondotrack and it's the same as the Tokyo games, but I am hearing this is even quicker.

This year it was a slow start to the running times, but as we got into Olympic trials the times have ramped up massively.

Harry Poole
BBC Sport in Paris

Image source, Getty Images

The company which designed the purple Paris 2024 track says it is its fastest yet, a full 2% faster than Tokyo's in 2021.

Beneath the purple lies a rubber track with two layers. The lower level has honeycomb cells, where air absorbs the shock of your foot landing, then pushes out, feeding the energy back as your foot takes off. You can read more on the technology behind it over here.

It now has its first world record, as the USA quartet take a commanding victory, ahead of the brilliantly backed French team who are roared on to a national record performance.

Steve Cram
Athletics commentator on BBC TV

Image source, Getty Images

Tomorrow we will see another world record from the USA - I will be surprised if we don't!

Dame Jessica Ennis-Hill
London 2012 Olympic heptathlon champion on BBC TV

It is like no other feeling, you prepare for so many years and it brings you to this one moment in time.

The energy already is electric and it's an honour to be a part of it.

The United States take this first heat - and do it in style.

They already held the world record in this newish event and now they've broken it with a 3:07.41.

France came in second, Belgium finished in third.