Tom Fordyce
Chief sports writer at London Stadium

A little heads-up as the men's shot put final gets under way: Olympic champion Ryan Crouser once won a novelty cake-throwing contest, three years before winning that gold medal. His winning distance was 14m - but the pastry in question was one metre wide, one metre long and 50cm deep. And no, the 19 1/2 stone man did not eat it afterwards.

Holly Bradshaw gets the ok from her weathervane of a coach in the stands. Apparently the conditions are just right.

How he knows they are still going to be by the time Bradshaw has picked up her pole and run 20m down the runway is another matter,

Anyway, Bradshaw baulks, dropping to the mat without bothering the bar.

She has only one more attempt at a height she has bettered by 6cm this year.

Image source, Getty Images

Sweden’s David Storl, world champion in 2011 and 2013, qualified second behind New Zealand’s Tom Walsh, the Rio bronze medallist who threw a season's best of 22.14 seconds to make the final.

American Olympic champion Ryan Crouser, who has 1000 calories in every meal, tops the world list this year with 22.65m but he was 1.75m off that in the first round. Fellow American Joe Kovacs, the reigning world champion and Olympic silver medallist, also starts in the medal hunt.

American Aries Merritt says he was competing with a hamstring problem as he qualfied for the final.

"I felt a little tightness in my hamstring," he tells BBC Sport. "It loosened up and I tested it to make sure it would not fall off! I don't want to go out there and injury myself in the semi-final. It was solid."

BBC Radio 5 live

Image source, BBC Sport

There's not much space on a busy 5 Live commentary bench, but there's always a spot for Christian Coleman, Saturday's 100m silver medallist.

20:35 - Men's shot put final

20:40 - Heptathlon 800m - final event - (Katarina Johnson-Thompson in third heat)

21:15 - Men's 800m semi-finals (Guy Learmonth and Elliot Giles in first semi-final, Kyle Langford in second semi-final)

21:50 - Women's 100m final

Poetry in motion.

Holly Bradshaw watches Olympic gold and silver medalists Katerina Stefanidi and Sandi Morris tsoar over 4.75 clean as a whistle.

The Briton can't follow suit.

Image source, Getty Images

World 100m silver medallist Christian Coleman on BBC Radio 5 live: "The atmosphere was crazy last night and to get a medal was the icing on the cake.

"It was a crazy feeling to be on the start line but my coach told me what to expect with it being Usain Bolt's last race. I tried to drown it out and focus on my race. It was a historic moment and I was glad to be a part of it.

"Justin being booed hurts my heart because he is a friend of mine, he's a great guy, a great competitor and a great person. I was disappointed. When people hate you like that the only thing you can do is win, and that's what he did.

"It would have been easy to have been intimidated by Usain Bolt but I felt I belonged at this level and was there to win a medal. Usain is such an icon, I have such respect for him."

Mary Mowat: Watching Andrew Pozzi's interview on just failing to make the hurdles final...athletics is tough.

David Talbot: Absolutely gutted for Pozzi and Bradshaw is giving me a heart attack!

Jenifer Moore: Third time lucky, thank goodness Holly!

Hungary's Balazs Baji takes the semi-final win on the nod ahead of American Aries Merritt.

They are both safely through to the final and the two fastest loser spots go to the highest profile losers - world champion Sergey Shubenkov and Rio silver medallist Orlando Ortega.

Image source, Getty

London 2012 champion Aries Merritt goes in the third and final semi-final.

The world record holder has recovered from a kidney transplant to get back to near his best.

Darren Campbell
Former British sprinter on BBC Radio 5 live

Holly Bradshaw has to build on that momentum now, and believe in herself.

She's in there competing with the best athletes in the world and you have to believe you deserve to be at the top table, and then you can take them on.

Andrew Pozzi says he lost momentum after hitting the penultimate hurdle.

"It is not good enough to come here and not make a final," he tells BBC Sport.

"The standard is good, but the fact I'm not one of those eight is tough."

A squeal of delight from Holly Bradshaw as descends back to the mat with the bar rock solid and untouched.

She is one of only seven athletes to have gone over that height.

But might she pay for those failures in a countback situation?

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

We knew it was going to be competitive, we knew it was going to be tight all the way. Pozzi clattered hurdle nine and will be bitterly disappointed.

Michael Johnson
Four-time Olympic gold medallist athlete on BBC TV

Isaac Makwala was always going to be one of the challengers to Van Niekerk. It was a really efficient run. He glides to the finish line and it's extremely impressive running. This is shaping up to be an incredible 400m over the next couple of days.