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There are no Britons in this one - the days of Jonathan Edwards and Phillips Idowu long gone.

The favourite is Jamaica's Jaydon Hibbert, who is not afraid of adding pressure to himself.

Before the event he said “being the Usain Bolt in the jumps, that’s the plan".

The 18-year-old backed that up by jumping 17.70m to reach the final and was the only athlete to go beyond the automatic qualifying mark.

Last year’s silver and bronze medallists Hugues Fabrice Zango and Zhu Yaming will hope to be in the mix again.

Kyron McMaster of the British Virgin Islands, the best outside the main three contenders in the men's 400m hurdles, wins the first heat in 47.72 seconds.

Karsten Warholm has run 46.51 this year.

Denise Lewis
Olympic heptathlon gold medallist on BBC TV

I was delighted with Jessie's performance. I saw her this afternoon and she was so confident because she's been working on this stride pattern. She attacks each hurdle. Her strategy is working and it's paying off in her performance.

Jessie Knight spoke to BBC Sport after winning her 400m hurdle heat: I'm starting to not panic [midway through a race] because I know the best is to come.

[Winning her heat] will mean a better lane to come. I've not done hurdles since the London Diamond League.

Hopefully, tomorrow I'm even quicker and a PB could come.

Karsten Warholm will be back on the track shortly in the men's 400m hurdles semi-finals.

He strolled through his heat to finish second. The world record-holding Olympic champion has run two of the fastest five times of all-time this year.

Will he put down a marker in semi-final three today?

Last year’s gold and silver medallists Alison dos Santos and Rai Benjamin, Warholm's two biggest rivals for gold, go in the second semi-final.

The top two from each semi go through automatically with the next two quickest joining them.

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18:33 BST: Men's 400m hurdles semi-finals, featuring Karsten Warholm

19:30 BST: Men's discus final

19:35 BST: Women's 100m semi-finals - Dina Asher-Smith, Daryll Neita, Shelly-Ann Fraser-Pryce, Shericka Jackson, Sha'Carri Richardson and Marie-Josee Ta Lou.

20:40 BST: Men's 110m hurdles final

20:50 BST: Women's 100m final. Who will be crowned world's fastest woman?

Great Britain's Jessie Knight powers on to win her heat, pipping American Shamier Little on the line.

That was pretty impressive.

On to the semi-finals...

Harry Poole
BBC Sport in Budapest

It is another toasty one in Budapest. The sun is beginning to set but my laptop is telling me we’re at near-record temperatures at a sticky 34 degrees.

It’s very still, though, and perfect pole vault conditions.

Olympic bronze medallist Holly Bradshaw is attempting to reach the final after her competition was ended prematurely last year when her pole snapped during warm-up

The 31-year-old said she was subsequently "crippled by anxiety", while she has also had several injury issues to overcome in recent times.

Better from Holly Bradshaw!

Under pressure knowing a foul would mean an early exit, the Briton clears 4.35m at the third attempt.

She punches the air in a reaction fouled by frustration.

There's still plenty of work to do to make the final.

Steve Cram
Athletics commentator on BBC TV

I think Jessie Knight will finish in the top four here, I think she'll be nervous, of course she will.

Jessie Knight, Britain's only representative in these 400m hurdles, is pacing around a little nervously in the waiting room.

She'll be on track in a sec.

Harry Poole
BBC Sport in Budapest

We’ve already seen several world records fall across a brilliant season so far, including a remarkable trio achieved by Faith Kipyegon.

Kipyegon will go for 1500m gold tomorrow, while we'll see 400m hurdles world record holder Karsten Warholm in action tonight. Femke Bol and Grant Holloway are both capable of going close in their respective hurdles disciplines.

Newly crowned men’s 100m champion Noah Lyles has also predicted he will break Usain Bolt’s 14-year 200m record.

The Mondo surface, which was also used at the Tokyo Olympics, gives a one to two percent performance boost to the athletes using air cell technology, according to its designer.

It felt springy when I had the chance to step onto it earlier – but I’ll be able to tell you more following tomorrow's media race, which I hear is taken quite seriously…

If there was ever a way to put a fall behind you then this is it.

Netherlands' Femke Bol dominates her heat - winning it by a distance despite winding down late on.

Impressive stuff.

Image source, Reuters

British record holder Holly Bradshaw has fouled for a second time in the pole vault qualification.

Molly Caudery, GB's other representative, has cleared 4.35m.

She has also been doing some very impressive doodling while waiting her turn.

Jamaica’s Andrenette Knight, the second-quickest in the world this year, is beaten into second place in her 400m hurdles heat by Kemi Adekoya of Qatar.

That's a big PB of 53.56 seconds for Adekoya.

Femke Bol, who ran the third-fastest time in history earlier this year, is up next. Here's a reminder of her dramatic fall on Saturday...

In the women's pole vault you need to reach 4.65m to qualify automatically or finish in the top 12.

Great Britain's Holly Bradshaw comes in at 4.35m but runs through without even attempting to jump, something clearly wrong with her run-up.

That'll be a foul.

Zharnel Hughes in the BBC Two commentary box with Katarina Johnson-Thompson: I remember getting out and seeing Christian Coleman and thinking I wanted to catch him.

I got to the finish line and saw Noah, it looked a lot closer than it was. I was just thinking I hope I got on the podium. I knew I had to bring my A game. It was just a matter of time before I showed the world.

When I saw Kat on the podium just now and listening to the national anthem, Kat inspired me and I'm super proud after you came back from injuries. Just keep going.

Femke Bol is back stage getting prepared for these heats. She banged her head in that fall on Saturday night but we're told she has passed the relevant checks to compete.

Katarina Johnson-Thompson spoke to BBC Sport after winning gold in the heptathlon: It's been one of the best championships I can remember in a long time. I was so proud and was trying to cherish every single second of the anthem.

I was quite calm and composed in the race and now I've watched it back, I didn't realise it was as close as it was.

One of the contenders I didn't mention there is Dalilah Muhammad - the Olympic champion from Rio.

The American eases around the opening heat to finish second behind Jamaica's Rushell Clayton.

Compatriot Sydney McLaughlin-Levrone is the reigning Olympic and world champion but is not in Budapest because of an injury.

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