Switzerland's Jason Joseph, France's Wilhem Belocian, and USA teenager Ja'Kobe Tharp are separated by just two thousandths of a second in heat two.

Senegal's Louis Mendy takes the final automatic qualifying spot but Great Britain's Tade Ojora can only finish eighth.

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

Dylan Beard is going to have to improve his start. He got himself into the set position very late.

The timing and rhythm was good but he will need to step up on his time. He will manage that in the semi-finals to get a tenth of a second down.

These hurdles are unforgiving and if you hit, then you suffer.

USA's Dylan Beard races through heat one in first place, with a time of 13.28 seconds.

China's Yuanjiang Chen and France's Sasha Zhoya take second and third, with Brazil's Thiago dos Santos sneaking fourth after fading in the second half of the race.

As in the 400m hurdles, it's the top four in each of the five heats, plus the four next fastest non-automatic qualifiers who'll advance to Tuesday's semi-finals.

Dame Jessica Ennis-Hill
Three-time world heptathlon champion on BBC TV

Cordell Tinch does not have a whole lot of experience in big occasions like this whereas Grant Holloway does. That counts for a lot

You can perform your best all season but other factors come into play when you are at a World Championship and Grant Holloway knows how to handle that.

Image source, Getty Images

Can Grant Holloway turn his form around?

The American hurdler has won the last three world championships in this event along with the Olympic title in Paris, but has had a difficult year. The 27-year-old came last in his opening Diamond League race in China, fifth in his next outing in Paris and has lost to fellow Americans in his two subsequent international races.

He may have opened the door for two team-mates - Cordell Tinch, 25, and Ja’Kobe Tharp, 19. Tinch is the joint-fourth fastest sprint hurdler in history, but missed out on selection for last year's Olympics at US trials. Tharp, junior world champion last year, won the national title in June.

Meanwhile last month Rachid Muratake became the first Japanese athlete to break 13 seconds in the 110m hurdles, while Tade Ojora lines up for Great Britain in heat two.

Update from the men's pole vault final.

Armand Duplantis decided to enter at 5.55 metres and easily sailed over the bar, but is skipping 5.75m.

His main rivals Emmanouil Karalis - who skipped the first height - Sam Kendricks and Kurtis Marschall have all passed 5.75m with minimal fuss.

Turkey's Ersu Sasma has already been eliminated after failing to make it over 5.55m

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

Ezekiel Nathaniel looked very strong.

A lovely controlled race all the way around. He kept completely focused. A little bit of a technical struggle on hurdle eight which he may want to look at.

He is looking very promising.

BBC iPlayer

Four world champions are set to be crowned in this session and we'll be on hand to make sure you don't miss any of the action.

You can also tune in to BBC One now before coverage moves to BBC Two from 13:00-14:45. You can watch live on BBC iPlayer or by clicking the link at the top of this page.

If you do miss any of the key moments, the daily highlights show will be available to watch on BBC Three, iPlayer and Red Button from 19:00 BST.

Make that two Brits in the men's 400m hurdles semi-finals!

Alastair Chalmers burst into life in the second half of the race to take fourth place in 48.86 seconds.

Nigeria's Ezekiel Nathaniel wins the final heat in 48.37 seconds with USA's Caleb Dean and Brazil's Francisco dos Reis Viana in second and third, respectively.

Image source, Getty Images

Great Britain's Seamus Derbyshire, speaking to BBC Sport after finishing sixth in his heat: " It was not my best. It's not the time to mess up, I'd be lying if I said I was very happy with my performance but I've had so much growth this year. I didn't think I'd still be in the sport 12 months ago. It's going to be a good platform "

Image source, Getty Images

That didn't look an easy race for anyone!

Olympic champion Rai Benjamin of USA takes the fourth heat in 48.15 seconds. Emil Agyekum of Germany is second in 48.33 with Victor Ntweng of Botswana taking third and Gerald Drummond of Costa Rica fourth.

Great Britain's Seamus Derbyshire misses out on a place in the semi-final despite his dances moves before the race. The 25 year-old has gone viral on TikTok for his start line gestures but sadly he does not advance any further.

Just one more heat to go.

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

Very controlled running from Karsten Warholm. He would have had orders from the coach to not use too much energy. But he has done a job.

Athletes will look at who is in their race and assess what needs to be done.

When you are as good as Warholm you can do that. He has the knowledge that he can go sub 47 seconds if necessary.

Harry Poole
BBC Sport in Tokyo

No Japanese athletes on the track, but huge cheers? That can only mean one thing.

Mondo Duplantis is announced to the crowd before the start of the men's pole vault final, and what a treat those with a seat around the top bend of the track have in store this evening.

Sweden's megastar is not one to downplay expectations and, when asked about whether we should expect to see a world record tonight, replied: "I feel like it's on the cards."

You could drive a bus through the gap between Duplantis and the bar as he soars over on his first attempt at 5.55 metres.

We can all be forgiven for feeling a little excited, then.

Image source, Reuters

Three-time world champion and world record holder Karsten Warholm coasted through heat three, producing a measured run to qualify in third place.

Brazil's Matheus Lima came first in 48.15 seconds - the second-fastest time across the heats so far - with Qatar's Ismail Doudai Abakar second and Turkey's Berke Akcam running a season best 48.68 seconds in fourth.

Brazil's Alison Dos Santos speaking to BBC Sport after finishing second in his men's 400m hurdles heat: "In the first heat, it is important to feel the race and the body and just analyse everything. The weather is complicated. It is hot over here but you have to adjust.

"The track is amazing. It is so good to run on.

"I feel in good form. I feel ready and I am here to fight for the gold and run fast."

Image source, Getty Images

Harry Poole
BBC Sport in Tokyo

The stadium is taking a little longer to fill up this evening and it's definitely not the sell-out crowd of the opening two nights.

You couldn't really tell as the crowd cheer on their home athletes in the first few men's 400m hurdles heats of the evening, though.

That lower turnout could be explained by the fact that today is a national holiday in Japan, when the nation's elderly citizens are celebrated and honoured during Respect for the Aged Day.

Hopefully those with plans elsewhere were still able to catch a glimpse of Tyri Donovan's epic dive across the line to qualify in a personal best just in front of us there.

That's giving everything, and some! On a day for the aged, a dive for the ages...

Image source, Getty Images

Bassem Hemeida of Qatar takes first place in the second heat with a finishing time of 48.43 seconds.

The 2022 world champion Alison dos Santos of Brazil takes an easy second place. He could have won that one but just cruised through, knowing he would qualify.

Owe Fischer-Breiholz of Germany takes third and Matic Gucek of Slovenia completes the top four.

Image source, Getty Images

Simply put, Armand Duplantis is the rock star of the pole vault.

The 25-year-old American-born Swedish athlete has dominated the event since he first broke the world record in 2020.

Duplantis has set 13 world records in the last five years - increasing the record by one centimetre each time - the most recent in August when he cleared 6.29m at the Hungarian Grand Prix.

The closest anyone has come to challenging Duplantis this season was when Emmanouil Karalis cleared 6.08m in August 2025.

So Duplantis is more than 20 centimetres ahead of the rest - and will fancy himself to set a new world record of 6.30m at the World Athletics Championships in Tokyo.

I hope everyone has their multi-tasking hats on (I do) because our first final of the day, the men's pole vault final, will soon be getting underway.

So we've got the men's 400m hurdles heats, men's long jump qualifiers, and men'e pole vault final happening all at the same time.

Blink and you'll miss something!

Image source, Getty Images

Qualifying for the men's long jump is also underway.

Miltiadis Tentoglou is the man to beat - the 27-year-old Greek athlete, a back-to-back Olympic champion and the 2023 world champion, will be looking to make his way through qualifying today, with a final to follow on Wednesday.

Among his competitors are Mattia Furlani, the 20-year-old world indoor champion from Italy, while Liam Adcock of Australia is in good form - all five of the longest jumps in his career have come this year.