GB second with 50m to go.

Great Britain are leading with 100m to go. Has Freya Anderson gone too early?

Holly Hibbott has taken Great Britain up into the bronze medal position. Can Freya Anderson bring home a medal?

Still hope. The second leg from Great Britain's Kathryn Greenslade saw her start fourth and we are still fourth. Holly Hibbott's turn.

After the opening leg from Ellie Faulkner, Great Britain are fourth. Kathryn Greenslade on leg two. Holly Hibbott and Freya Anderson wait patiently.

And there's more in the pool. How about five medals in the afternoon session? Well, Great Britain are represented in the 4x200m women's freestyle relay so you never know.

Image source, Getty Images

Nick Miller breached the 80m barrier to claim gold on the Gold Coast earlier this year, making him the third-best hammer thrower in the world this year on performance.

One problem. Well, two. Polish pair Wojciech Nowicki and Pawel Fajdek.

The two men to hurl the hammer further do so regularly and both are present in Berlin.

This is a list of the top performances in 2018. Very red and white, but a serious deficiency of blue.

Image source, IAAF

Cumbrian Miller was short of his best in qualifying with 73.79m. That was only 11th best and a scrape into the final.

Would he take a bronze if offered now? I think so.

Image source, Getty

The decathletes are over on the crash mats for the high jump.

This should be a good one for Tim Duckworth. His season's best of 2.13m is the joint best in the field. The 22-year-old is biding his time before entering the competition with the bar currently at 1.96m.

Only Daley Thompson and Dean Macey are above Duckworth in the all-time list of British decathlon performances after he clocked 8,336 earlier this season.

Duckworth, who was born in California to British parents and now lives in Arizona, has been boosted in his hunt for a medal by Kevin Mayer's mare in the long jump earlier today.

The French world champion recorded three no-jumps to banjax his medal chances.

Panic over for Aimee Willmott. She gets through as the seventh-fastest qualifier to join Siobhan-Marie O'Connor in the final.

Image source, Getty Images

It was a solid morning for the Britons in action in this morning's session.

Defending European champion Martyn Rooney and Dwayne Cowan made it through to the 400m semi-finals in times of 46.27 and 45.75 seconds respectively.

Lynsey Sharp, Adelle Tracey and Shelayna Oskan-Clarke qualified for the 800m semi-finals. British champion Laura Muir is concentrating on the 1500m remember.

Tim Duckworth - who won the US collegiate title in June - is fourth in the heptathlon standings after three events.

Andrew Jameson
Former British swimmer on BBC TV

That's exactly the same time Siobhan-Marie O'Connor swam to win gold at the Commonwealth Games.

O'Connor is definitely through but Aimee Willmott could be in trouble.

Laurel: Go Duncan! Winning gold from lane eight is a baller move!!

Libby Dawes
BBC Sport in Glasgow

Phew! I think this crowd were starting to think they were not going to get their gold-medal moment tonight but then Duncan Scott turns up and does that... from lane eight!

The rest of the British team all got to their feet when they realised he was leading with 50m to go, wildly gesturing with their arms as if it were going to propell him even more. Turns out it worked!

Team effort.

British gold medallist Duncan Scott speaking to BBC: "I had to stick to my own race. It was going to be really close. I am just glad I executed my own race. I am absolutely delighted. I didn't know what was going on and at the last turn I sort of realised where I was and tried to hang on.

"The crowd were amazing. Even when I was warming up I just wanted to have fun. The crowd are just great. You can hear the fire."

Britain's James Guy, who came fourth, speaking to BBC: "It was a great swim by Duncan Scott tonight. I am obviously heartbroken. I thought I could go faster than that.

"I have been training and working so hard. I don't think I am swimming well but it is what it is. I was faster than at the Commonwealth Games so at least that is something."

Image source, Getty Images

Now in the pool is the 200m individual medley and Siobhan-Marie O'Connor wins her semi-final in style to storm into the final.

Aimee Willmott comes third. Only the top two definitely go into the final, but Willmott should qualify as one of the fastest losers.

This is the full rundown for this evening:

17:30 BST - Decathlon - high jump

17:45 BST - Men's Hammer final

18:05 BST - Women's 100m semi-finals

18:05 BST - Women's pole vault qualifying

18:25 BST - Men's 100m semi-finals

18:45 BST- Men's 400m hurdles semi-finals

19:20 BST - Men's 10,000m final

19:33 BST - Men's shot put final

20:00 BST - Decathlon - 400m

20:30 BST - Women's 100m final

20:50 BST - Men's 100m final

A great hour for British swimming...

GOLD - Duncan Scott (men's 200m freestyle)

SILVER - Ben Proud (men's 50m butterfly)

SILVER - Georgia Davies (women's 100m backstroke)

BRONZE - Molly Renshaw (women's 200m breaststroke)

Image source, Gett

This evening's action ends with a double-dose of sprint drama.

The women's 100m final should - dependent on semi-finals going smoothly - feature Britain's Dina Asher-Smith going for gold at 20:30 BST.

Twenty minutes later we could see a three-pronged assault on the men's podium provided Zharnel Hughes, Reece Prescod and CJ Ujah all make the 20:50 BST shakedown.

Andrew Jameson
Former British swimmer on BBC TV

That's fascinating. Wow.

James Guy just missing out, but a brilliant, brilliant swim from Duncan Scott.

The guys in the middle lanes must be so surprised by this.