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

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Noah Lyles will be pleased with that. That wasn't too taxing for him.

He had a nice unwind on the last few metres. He comes down the straight, nice and bouncy and has such good knee lift and therefore can allow himself to relax.

That is his beauty. He is not the tallest of 200m runners but gets that elevation.

Defending champion Femke Bol eases to first place in the second semi-final in 52.31 seconds, with 2019 champion Dalilah Muhammad second in 53.14.

Belgium's Naomi Van Den Broeck sets a national record of 53.65, and should qualify as one of the two fastest non-automatic qualifiers.

Great Britain's Emily Newnham - European U23 gold medallist - finishes in sixth place.

Gianna Woodruff wins heat one with a monster time of 52.66 seconds, with the USA's Jasmine Jones second with a season best of 53.01.

Emma Zapletalova of Slovakia takes third in 53.22, as world number six Andrenette Knight can only finish in fifth place.

The cream is rising to the top in the women's pole vault final.

Co-champion Katie Moon and six-time global medallist Sandi Morris both clear 4.75 metres at the first attempt.

Tina Sutej of Slovenia clears 4.75m at the third attempt to move into joint-third place with Amálie Svabikova.

Angelica Moser, European champion indoors and out, fails three times and is out, as does 2022 world under-20 champion Hana Moll.

Her identical twin sister Amanda also fails and finishes with an identical card...

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It's time for the semi-finals of the women's 400 metre hurdles.

Emily Newnham is the only Team GB athlete left in the event, and she will be hoping to secure her place in the final.

She qualified second in her heat with a time of 54.59, and will likely have to be even quicker to secure a spot in the final.

Of course, the star attraction is reigning world champion Femke Bol. The Dutchwoman is unbeaten since winning a second successive Olympic bronze last summer, and has looked supreme this year since adjusting her stride pattern.

USA's Jasmine Jones qualified fastest with a time of 53.18, with Paris 2024 silver medallist Anna Cockrell also competing for USA.

A reminder that Olympic champion Sydney McLaughlin-Levrone isn't competing in the 400m hurdles this year.

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Great Britain's Toby Harries speaking to BBC Sport after missing out on 200m semi-final qualification: "That was slow. I just emptied the tank too much in the mixed relay.

"My body felt great in the warm-up but it is not always about your muscles, sometimes it is your nervous system. I just couldn't find that extra gear that I usually can.

"My energy was not there tonight. I am capable of being faster than that but it just was not my race tonight.

"Doing the mixed relay was out of my hands but I would not take it back. It is just a lot doing so many rounds in a short amount of time.

"We live and we grow. I hope to do better next time."

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In heat six, Olympic champion Letsile Tebogo of Botswana takes first place. He made that look very easy on the home straight.

Xavi Mo-Ajok of Netherlands takes second while Towa Uzawa of Japan secures his place in the semi-finals in third place. The home crowd loved that.

That's all of the men's 200m heats complete. Onto the semi-finals!

USA's Noah Lyles after qualifying for the men's 200m semi-finals: "The body is feeling good. It is waking up. The goal was to blast the first 100m and I did that.

Zharnel [Hughes] was showing that he was ready too so I had to show what I could do as well.

When I get to the final, we will have to see what my plan is. When I get there.

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The men's long jump final is underway.

Greece's Miltiadis Tentoglou is the dominant force - he leapt to a wold-leading 8.46 metres at the European Team Championships in June, and ranked third in the qualifiers on Tuesday.

He held all five major titles available to him before placing fifth at this year's world indoors, ending a 10-medal-winning streak at major championships (nine gold and one silver).

Mattia Furlani won Olympic bronze last summer in his first year of senior competition, before winning the world indoor title earlier this year.

Liam Adcock is a noticeable absentee, after failing to progress from the qualifiers.

Keep an eye on Jamaican duo Tajay Gayle and Nikaoli Williams - the former beat his fellow qualifiers by seven centimetres - and Spain's Lester Lescay, who achieved a season best of 8.21m.

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

The quality of this men's 200m is amazing. Lane draws will be important for the final and where you finish in your heats affects that.

Bryan Levell is outstanding. He came so easily down that home straight.

What a time.

The third-fastest Jamaican in history, Bryan Levell, absolutely bombs it around the bend, and eases up as he crosses the line to take first place in 19.84.

Makanakaishe Charamba of Zimbabwe takes second in 20.06, with seventeen-year-old Australian record holder Gout Gout third in 20.23.

Harry Poole
BBC Sport in Tokyo

Usain Bolt is once again here watching the action as the current generation battle for sprinting supremacy.

Noah Lyles has long sought to assert himself as Bolt's successor and will be desperate to retain his 200m title after losing the 100m.

But is this the next true incarnation of Bolt that we're about to see?

A lot of people are getting very, very excited about Australian teen Gout Gout, but he's going to have to work hard to progress at his first global championship.

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Everyone's talking about Gout Gout, the scintillating teenage sprinter from Australia making his world championship debut in Tokyo - here's a bit of his back story.

The 17-year-old gets going today in the 200m - an event in which he holds the Australian record of 20.02 seconds.

But the teenager also competes over 60m, 100m and 400m, and holds an impressive series of records at youth levels.

Videos of Gout's dominant performances have gone viral online, and his height, long strides, and string of stellar victories have led to comparisons to legendary eight-time Olympic gold medallist Usain Bolt.

Born in Queensland to parents from South Sudan, Gout is one of seven children.

His father says his name should be pronounced 'Gwot Gwot', but the athlete and his manager have asked commentators to call him 'G-out G-out'.

You can read more about Gout Gout in our Ask Me Anything article.

Great Britain's Zharnel Hughes and Noah Lyles of the United States make it through in heat four.

The American finishes first with a time of 19.99 seconds, Hughes is second in 20.07 and Christopher Taylor of Jamaica runs a personal best of 20.26 to secure the final automatic qualifying spot.

Andre De Grasse of Canada, the 200m Olympic champion in this stadium three years ago, is fourth with 20.30 and well placed to progress as one of the six fastest non-automatic qualifiers.

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A false start to get us kicked off in heat three. South Africa's Sinesipho Dambile falters out of the blocks but he gets no infringement and is given a second chance.

Eventually, Kenny Bednarak of USA claims first place to secure his spot in the men's 200m semi-finals with a time of 19.98.

Udodi Onwuzurike of Nigeria takes second place while Sinesipho Dambile of South Africa secures the final automatic qualifying spot. Lucky day for him!

Here's how Dina Asher-Smith, Amy Hunt and Daryll Neita made it through in the women's 200m heats.

They'll go again in tomorrow's semi-finals.

Zimbabwe's Tapiwanashe Makarawu eases to first place in heat two in 19.91, with Courtney Lindsey of the United States second in 19.95.

Jamaican youngster Adrian Kerr takes third in 20.13, pipping France's Ryan Zeze and Canadian veteran Aaron Brown.

That was a fast heat, and as a result Great Britain's Toby Harries drops out of the six fastest non-automatic qualifying spots.

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

Image source, Getty Images

Wayde van Niekerk looked very good. He didn't press until he really needed to at about 120 metres.

When you ask Usain Bolt who he has always wanted to race, he would always say Wayde van Niekerk. That shows you how highly he is rated.

Great Britain's Toby Harries is unlikely to progress in the men's 200m after he finished seventh in heat one in a time of 20.76 seconds.

Alexander Ogando of the Dominican Republic wins with 20.10, Wayde van Niekerk of South Africa is second in 20.19, while Timothé Mumenthaler of Switzerland takes the last automatic qualifying spot with 20.39.

Remember, the top three in each heat, plus the next six fastest non-automatic qualifiers, will be in the semi-finals.

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There's no shortage of star names competing alongside British duo Toby Harries and Zharnel Hughes in the men's 200m heats.

USA sprinter Noah Lyles is the defending champion and is going for his fourth consecutive world title in this event. He is the fastest man in the world over 200m this year, running a world leading 19.63 seconds to win the US Championships.

Botswana's Letsile Tebogo finished third at the Worlds in 2023 but beat both Lyles and Kenny Bednarek to claim the gold medal at last year's Olympics. Tebogo matched his season's best of 19.76 in his most recent outing in Zurich but lost to Lyles on that occasion.

Bednarek (USA) is a two-time Olympic silver medallist and was runner-up to Lyles at the Worlds in 2022.

And then there's Australian sprint sensation Gout Gout. The 17-year-old has caught not only global attention but that of Usain Bolt, who said "he looks like a young me".

More on him in a second.