KJT is high fiving the officials behind the scenes. She couldn't look more relaxed.

Good signs?

If you were otherwise engaged by a certain football match this morning - don't worry I won't blame you - then you missed quite the morning for Katarina Johnson-Thompson.

After a solid day one, the Briton started Sunday second but jumped the further than anyone in the long jump and then threw a lifetime best in the javelin take the overall lead.

That came after American Anna Hall, the leader overnight, emerged with strapping on her left leg and disappointed in the long jump.

Hall did find a good final throw in the javelin to keep herself in contention but has dropped down to third.

It all comes down to the 800m tonight.

Hall is the better 800m runner but needs to beat Johnson-Thompson by around two-and-a-half seconds to win.

Image source, Getty Images

Katarina Johnson-Thompson has had plenty of highs and lows throughout her career, ever since making her name at the London Olympics as a teenager.

The highest point came in 2019 when she won the world title with a British record score.

But since then she has struggled - rupturing her Achilles in the lead up to the Tokyo Olympics and then injuring her calf at the Games and having to limp off track.

There have been tough moments since but, with a new coach, she has found her mojo this year.

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

I don't think Anna Hall will give up easily and Anouk Wetter will run as hard as she can in her least favourite event. Lets hope that Kat can hold on.

The conditions aren't great with it being hot and humid.

Here's how the heptathlon looks with just the 800m to come. Anouk Vetter's 800m record suggests she won't threaten but American Anna Hall, the pre-event favourite, is a superb runner.

KJT has two-and-a-bit seconds to play with. She might need all of that to hold on to gold.

1. Katarina Johnson-Thompson (GB) 5710
2. Anouk Vetter (Ned) -26
3. Anna Hall (US) -43
4. Sophie Weissenberg -122
5. Chari Hawkins -133

Image source, Getty Images

It's almost time for KJT...

"He is one of the best and is putting a show on. It's fine," says Britain's Josh Kerr about the showboating from Jakob Ingebrigtsen.

Oh my!

Jakob Ingebrigtsen does indeed sort himself out and he's playing with the crowd - waving to them asking for a louder cheer - as he heads to the front with 100m to go. He's not even looking at the track.

What a showman.

Josh Kerr finishes second. Elliot Giles is out

Great Britain's Josh Kerr takes it on at the front at the bell.

Ingebrigtsen is a little boxed in further back. He'll be OK, won't he?!

Neil Gourley spoke to BBC Sport after the 1500m semi-final: Today was a little different, yesterday I had a lot left. I don't know why but I just didn't feel right today. I didn't really get it wrong today, I just didn't have it. I knew I was in touching distance of sixth. With how I felt, I was going for sixth place. I'll recover and go again on Wednesday, hopefully with better legs.

Jakob Ingebrigtsen looks like he's jogging up the road for a pint of milk as he casually takes his place at the back early on.

Kerr and Giles are near the front.

Jakob Ingebrigtsen, tattoos on each arm, and quiff in place waves to the crowd before the second 1500m semi-final.

There are two Brits here - Josh Kerr and Elliot Giles.

Harry Poole
BBC Sport in Budapest

We've got another great turnout at the magnificent 35,000 capacity National Athletics Centre this evening and the noise is increasing with each event that passes as we build towards the big finale that is the men's 100m showpiece.

The 1500m semi-finals have really engaged the crowd, the unique mix of out-and-out racing and wily tactics keeping everyone on the edge of their seats.

Word of advice, if you want a relaxing experience, don't watch too many of Neil Gourley's races.

That's two races in a row now where he's looked in a seriously uncomfortable situation but managed to pull through.

That's all that matters, of course.

Over to Josh Kerr and Elliot Giles to try and join Laura Muir, Katie Snowden and Melissa Courtney-Bryant in securing a full house in the 1500m finals.

By a whisker Neil Gourley makes it to the 1500m final.

He left it late in the heats and did so again today, having looked boxed in at one stage.

In fact, he's made it by one hundredth of a second!

Image source, Getty Images

Image source, Getty Images

Laura Muir spoke to BBC Sport after her 1500m semi-final: It was fast, when I crossed the line I was like "wow". I'm just so happy for us. It's a long time since I've had company in the final. I'm looking forward to it.

Image source, Getty Images

Jakob Ingebrigtsen is, as ever, the star of the 1500m semi-finals which are up next.

The Norwegian is targeting the world record as well as gold medal in Budapest.

Ingebrigtsen is in the second semi-final, along with Britain's Josh Kerr and Elliot Giles plus former world champion Timothy Cheruiyot.

Glaswegian Neil Gourley is in the first first semi-final.

The top six in each semi-final go through.

Image source, Getty Images

Here's what's still to come:

• 16:30 BST: Men's 1500m semi-finals, featuring Jakob Ingebrigtsen and Josh Kerr
• 17:00 BST: Heptathlon concludes with 800m. Can Katarina Johnson-Thompson take gold?
• 17:25 BST: Men's 10000m final
• 18:10 BST: Men's 100m final. Who will be crowned the world's fastest man?

On the far side of the track, the women's long jump final is under way.

There are no Britons in that one. Serbia's Ivana Vuleta is the leader after the second of six rounds with a jump of 7.05m.

Steve Cram
Athletics commentator on BBC TV

Thought Laura was probably working harder than the other three, but she's qualified.

The final is going to be a cracker on Tuesday night.

Laura Muir can take her foot off the gas in the home straight. She doesn't bother challenging for the win at this stage.

Faith Kipyegon wins it with Ethiopia's Diribe Welteji second and Sifan Hassan third.

Britain's Katie Snowden qualifies in fifth and Australia's Jess Hull takes the final place in the final.