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Live Reporting

By Katie Falkingham and Amy Lofthouse

All times stated are UK

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  1. Post update

    That's all from us both tonight, thanks for joining.

    Same again tomorrow? See you then.

  2. Post update

    Want to watch more between then and now?

    Video content

    Video caption: World Athletics Championships: History made as GB trio qualify for men's 1500m final

    Video content

    This content is currently not available

    Video content

    Video caption: Johnson-Thompson receives heptathlon gold

    Video content

    Video caption: World Athletics Championships: GB win men's 4x100m semi-final in new world leading time

    Video content

    Video caption: Muhammad breaks women's 400m hurdles world record to win gold

    Video content

    Video caption: Kenya's Kipruto wins gold in sensational steeplechase finish

    Video content

    Video caption: Barshim wows home crowd with high jump gold

    Video content

    Video caption: Gardiner wins 400m title
  3. Post update

    Men's 20km race walk

    BBC Red Button

    The live action from Doha will be back at 21:30 BST with the 20km race walk featuring GB's Tom Bosworth and Callum Wilkinson.

    You will be able to watch that on the Red Button and on the website.

  4. Highlights

    A short but sweet session in a packed Khalifa Stadium - here's a recap of everything that has happened:

  5. Post update

    Michael Johnson

    Four-time Olympic gold medallist athlete on BBC TV in Doha

    The stadium was as full as we've ever seen it. The energy in here was fantastic.

  6. 'It means everything to him'

    Men's 400m final

    Michael Johnson

    Four-time Olympic gold medallist athlete on BBC TV in Doha

    Gardiner was running very relaxed. He looks like an 800m runner but he's got 200m speeds.

    He's a much faster athlete than Fred Kerley and Gardiner just ran a great 400m, executing it perfectly. It means everything to him.

    Great to see another 400m runner like Gardiner come here and deliver his best performance and win the gold medal.

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    Men's 400m final

    Gardiner goes to sixth on the all-time list with that time.

  8. 'Gardiner gave everything'

    Men's 400m final

    Colin Jackson

    Two-time world 110m hurdles champion on BBC TV in Doha

    At 300m, you couldn't call who the victor was going to be. Gardiner gave absolutely everything.

    He held his form and he used Fred Kerley to guide him through the first 150m, then attacked with 50m to go.

  9. Gold medal - Steven Gardiner (Bahamas)

    Men's 400m final

    That was remarkable. Gardiner really found another gear there.

    It's a new national record of 43.48.

    Silver goes to Anthony Jose Zambrano. Bronze to Fred Kerley.

    Video content

    Video caption: Gardiner wins 400m title
  10. 'Sensational from Gardiner'

    Men's 400m final

    Andrew Cotter

    BBC Sport commentator in Doha

    Such a talent! His whole career he's had injuries, he's had problems, he's always looked so good - and it's finally all come together.

    The Bahamas had to fundraise to get athletes here, and now they've really got something to celebrate. That was sensational.

  11. Post update

    Men's 400m final

    Oh my word. Gardiner is FLYING. Here he comes.

  12. Post update

    Men's 400m final

    James goes round the final bend well. But here comes Steven Gardiner...

  13. Post update

    Men's 400m final

    Kerley flies out of the blocks and Gardiner has a lot of ground to make up.

  14. Post update

    Men's 400m final

    They're off.

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    Men's 400m final

    Saj Chowdhury

    BBC Sport in Doha

    Are we going sub 43.5 here?

  16. Gold medal - Yaime Perez (Cuba)

    Women's discus

    It's a Cuban one-two in the women's discus.

    A stonking 69.17m is enough for Yaime Perez to secure the gold, with compatriot Denia Caballero second with 68.44.

    Sandra Perkovic of Croatia takes the final medal slot with 66.72.

  17. Post update

    Men's 400m final

    Light show time. It's epic.

  18. Post update

    Men's 400m final

    Following the bizarre semi-final exit of Michael Norman, the fourth fastest 400m runner of all-time, the clear favourite in this one will be US champion Fred Kerley (lane five).

    Grenada’s Kirani James (lane seven) has only raced eight times since winning Olympic silver in 2016 because of autoimmune condition Graves’ disease; a medal of any colour for the former Olympic and world champion would be a popular outcome.

    Steven Gardiner (lane four) won silver two years ago and he has looked good so far.

  19. Post update

    Men's 400m final

    Right, we've got another final coming up.

  20. 'Nafi is a phenomenal athlete'

    BBC Sport

    Katarina Johnson-Thompson on Nafi Thiam: "I'm definitely aware what it's like to come second and not medal and that's given me so much hunger in the past. Nafi will go away with that and she's already a phenomenal athlete. I'm fully prepared that she'll come back.

    "It's a big team around me. It was difficult to negotiate the timetable with the heptathlon and decathlon being on at the same time. I had people sending my coaches videos and feedback. It's a huge team effort.

    "I've enjoyed how quick it's all been. I had breakfast yesterday and then went back to bed, which I absolutely loved!"