Katarina Johnson-Thompson is way down in 13th in the overall standings after the shot put on 2745 points. Luckily for her, the 200m - her strongest event - is up next.

Nafi Thiam is top of the standing on 3087 with Germany's Carolin Schafer.

Laura Muir with plenty in reserve as she qualifies for the 1500m final on Monday.

Darren Campbell
Former British sprinter on BBC Radio 5 live

When I claimed my bronze medal in Paris back in 2003 I was in lane eight and didn't get caught up in everything that was going on. I just ran my own race and that helped me. Hopefully that can help Reece Prescod.

The defending champion, the world record holder and Olympic silver medalist Genzeba Dibaba has scrapped through to Monday's 1500m final by the skin of her teeth.

Laura Weightman speaking to BBC Sport: "I knew it would take a great race to get into final and down the home straight I have never been in a position when I am gaining places. I love competing in this stadium and can't wait until Monday."

Allison Curbishley
BBC athletics expert on Radio 5 live

I think I've aged about 20 years! Do not do that to us Laura Weightman! She is relieved. She had no idea what the young German was doing there but Hassan is looking like the champion elect - she looked so good there.

The two Laura both have chances to snatch a medal though - it'll be down to a last-lap sprint.

Laura Weightman makes her way into the final, coming on strong as the pace heats up.

It was a kamikaze run from Konstanze Klosterhalfen, considering the top five were going through.

She fades well down the field. She's young and talented, but that was not smart.

Image source, Reuters

Konstanze Klosterhalfen of Germany goes off the front and how. She has 20m on the rest of the pack as they hit the bell.

Sifan Hassan sees that break and heads off in pursuit.

The top five to go through.

Laura Weightman is doing on the front running work. Germany's Konstanze Kloserhalfen is well positioned. Sifan Hassan is lurking at the back of the pack.

Laura Weightman takes on the early pace with the US's Jenny Simpson in her pocket.

Image source, Getty

The second semi-final includes the Netherlands' Sifan Hassan - proud owner of the three fastest times in the world this year - alongside Britons Laura Weightman and Sarah McDonald.

Kenya's Winny Chebet and Germany's Konstanze Klosterhalfen are the two women in the race other than Hassan to have dipped inside four minutes this season.

Katarina Johnson-Thompson's third and final put is a 12.36. That is no improvement on her second mark of 12.47.

Both are sub par on what she did at Gotzis earlier this year.

Lots of work to do as she loses further ground on the leaders.

Brendan Foster
Olympic medallist and BBC commentator on BBC One

Laura Muir looked really good, strong and powerful. There was a lot of talent in that race. She should feel really confident about that.

Listen to Brendan and the team, click 'BBC Coverage' in this page.

Laura Muir speaks to BBC Sport trackside: "That could have been a final. I just wanted to get through.

"I was surprised how I felt. I felt really good. A 1500m is scrappy so I just wanted to get into that final."

Allison Curbishley
BBC athletics expert on Radio 5 live

Jess Judd is learning her sport, and yesterday will have taken a lot out of her emotionally and physically when she set a new personal best. It must have still been in her legs.

Allison Curbishley
BBC athletics expert on Radio 5 live

I was slightly worried about Laura Muir when I saw her leg taped up at the start of the race, but that was just a precaution and it was a really impressive run from Muir.

Image source, Getty Images

But Genzebe Dibaba - the defending champion and world record holder - is nowhere!

The Ethiopian really tied up along the home straight and is left hoping for a fastest loser spot.

Laura Muir looked very comfortable in second. Caster Semenya and Poland's Angelika Cichocka also went through.

Jess Judd has run her legs to jelly by the way. She staggered to the sidelines like she was ten pints deep.

Faith Kipyegon and Genzebe Dibaba are moving to the front at the bell.

Caster Semenya and Laura Muir just behind as Jess Judd fades away.

Great Britain' sJess Judd has taken this out, with a 65-second first lap.

She is going to go solo at the front and try and run the legs off the opposition.

Laura Muir tucked in nicely.

Sam Bryant
BBC Sport at London Stadium

Usain Bolt didn't hang around after finding out the result of his semi-final. Safely into tonight's final - and safely past the media mixed zone and into the dressing rooms.