Matthew Hudson-Smith sets European record and world-leading time of 43.74 seconds in 400m
Keely Hodgkinson wins 800m in world-leading and British record 1:54.61
Noah Lyles wins 100m in PB 9.81 seconds with GB's Louie Hinchliffe fourth and Zharnel Hughes sixth
Dina Asher-Smith third and Daryll Neita fourth in 200m won by American Gabby Thomas
GB women's 4x100m relay squad set world leading time of 41.55 seconds
GB's Molly Caudery third in strong pole vault competition
Heptathlete Katarina Johnson-Thompson fifth in long jump
Capacity 60,000 fans watch GB's Olympic stars at London Diamond League
Men's 400m national
Wow! What a run from Sam Reardon.
Reardon takes the win in a personal best time of 44.70 seconds. The 20-year-old had a beaming smile across his face as he crossed the line with daylight to Alex Haydock-Wilson (45.37 seconds).
Bailey Swift also posted a personal best 45.70 to claim third.
Men's 400m national
Back on the track, it's time for another national event with the men's 400m just about to get going.
Women's 800m wheelchair
Image source, PA MediaSammi Kinghorn speaking to BBC after her win in the women's 800m wheelchair: "I was delighted. I didn't have much of a plan. Mel is obviously my training partner and she is fighting for times. I gave her a shout to let me through and I'll pull her. On the last lap I decided to go and I couldn't feel my arms at the end.
"This is a new chair with brand new wheels and I needed to test it. Luckily, it went well.
"I sleep loads, I eat loads and I train sensibly. Everything is there and you just have to look after everything and believe that you can do it."
Women's pole vault
Image source, Getty ImagesTeam GB's Molly Caudery is building towards a shot at gold on her Olympic debut after claiming her first global title at the World Indoor Championships in March before breaking the British record in June and that 4.92m clearance remains unmatched in 2024.
The 24-year-old comes up against joint world champions Nina Kennedy, of Australia, and American Katie Moon, while Switzerland's Angelica Moser joined Kennedy in clearing 4.88m at last week's Monaco Diamond League.
Dame Jessica Ennis-Hill
London 2012 Olympic heptathlon champion on BBC TV
It's drilled into you to not go around anyone with any illnesses. You may only have one chance. If you pick up a cold or an illness then all that hard work is gone.
Men's shot put
It's already looking pretty ominous in the shot put with American rivals Ryan Crouser and Joe Kovacs leading the way.
Crouser tops the leaderboard after an opening throw of 22.23m with Kovacs second following his attempt of 22.03m.
Britain's Scott Lincoln is sixth of eight with 20.68m.
Harry Poole
BBC Sport at London Stadium
There is some eye-catching artwork to be admired on the walk towards the stadium, with the faces of Keely Hodgkinson, Dina Asher-Smith and Katarina Johnson-Thompson printed on stacked shipping containers as part of an advertisement campaign (other brands are available, of course).
'Not guts, no gold' are the words next to Hodgkinson, who will absolutely believe that Paris will be her time as she targets a first global title at the Olympic Games.
Asher-Smith, meanwhile, will look to make a statement in the women's 200m later, while Johnson-Thompson will fine-tune her preparations in one of her stronger events - the long jump.
Women's 800m wheelchair
Steve Cram
Athletics commentator on BBC One
That's an excellent performance from Sammi Kinghorn in front of this crowd. What a send-off before the Paralympics.
I think Sammi might be surprised to have won by so much.
Women's 800m wheelchair
An excellent performance from Sammi Kinghorn to set her up nicely for the Paralympics.
Kinghorn rolls to a very comfortable win in 1:43.24 seconds.
Belgium's Lea Bayekula was second in 1:46.54 seconds with Brit Mel Woods crossing the line in third and Hannah Cockroft has to settle for fifth.
Women's 800m wheelchair
How will Britain's seven-time Paralympic champion Hannah Cockroft fare in this?
She's up against some strong competition with compatriot Sammi Kinghorn and Belgium's Lea Bayekula ones to watch.
Men's wheelchair 1500m
Image source, Getty ImagesCanada's Brent Lakatos takes the win in a time of 2:59.95 seconds - he was the only non-Brit in the seven-man field!
Nathan Maguire is second with a time of 3:00.11 seconds and it's frustration for six-time Paralympic gold medallist David Weir as he finishes third.
Men's shot put
We've already had plenty of action on the track but it's starting to get going on the field now too.
As well as the women's javelin event, we also have the men's shot put just getting under way.
Americans Ryan Crouser and Joe Kovacs are ones to keep an eye on with Britain's Scott Lincoln also featuring.
Crouser is a double Olympic champion but he's got competition from compatriot Kovacs, who is full of confidence due to his 2024 world lead throw of 23.13m.
Dame Jessica Ennis-Hill
London 2012 Olympic heptathlon champion on BBC TV
It's such an incredible feeling stepping in here. That [Super Saturday] was 12 years ago but look at the crowd. There is still that same buzz and energy. It created so many special moment and memories for everyone in here.
BBC One
Homes Under the Hammer has just wrapped up and the London Diamond League broadcast has just started on BBC One.
If you haven't got a TV set nearby then you can also watch a live stream of the event at the top of this page.
Today's Diamond League meet started at 11:53 BST with junior and national events raising the curtain at London Stadium.
The women's javelin began at 12:50 BST with Briton Bekah Walton involved - she threw 52.08m on her first attempt, which has her currently sitting at the bottom of the eight-woman field.
Here's the running order (all times in BST) for the next hour:
Harry Poole
BBC Sport at London Stadium
Welcome to the world's BIGGEST one day athletics meet.
After last year hosting a 50,000 sell-out crowd, the capacity for the 2024 London Athletics Meet has been raised to 60,000.
It was announced earlier this afternoon, as the junior and national races took place on the track, that just 50 tickets remained.
It's going to be an incredible atmosphere - and the perfect send-off for the British athletes in particular before they head over to Paris.
Image source, Getty ImagesHas Olympic fever set in yet?
We're just six days away from the opening ceremony for the 2024 Paris Olympics and the main course that is the Games.
Today, it's just an appetiser to tease what should be a memorable couple of weeks in the French capital, with the latest Diamond League meet taking place at London Stadium.
You could excuse the biggest and brightest names in track and field for skipping this leg of the season with the Olympics on the horizon but... plenty have opted to take up the opportunity to fine-tune before heading across the Channel.
From Brits Zharnel Hughes, Keely Hodgkinson, David Weir, Matthew Hudson-Smith, Molly Caudery, Hannah Cockroft, Dina Asher-Smith, Daryll Neita and Katarina Johnson-Thompson to global stars Noah Lyles, Gabrielle Thomas, Christopher Morales-Williams and Femke Bol, there's plenty to take in over the next four hours.
There is a live stream available for you to watch at the top of this page from 13:15 BST and we'll be keeping you across all the key events.