Video caption: Brazil's Oliveira produces 'leg of his life' to take gold in Men's 100m relay final.Brazil's Oliveira produces 'leg of his life' to take gold in Men's 100m relay final.
Brazil's Oliveira produces 'leg of his life' to take gold in Men's 100m relay final as GB take bronze
Video caption: Jamaica claim a disappointing bronze medal in the women's 200m relay after poor handoverJamaica claim a disappointing bronze medal in the women's 200m relay after poor handover
Jamaica claimed a disappointing bronze medal in the women's 200m relay after poor handovers.
How can I watch the World Relay Championships?
The BBC has live coverage on the Red Button, iPlayer,
Connected TV and online, as well as highlights on BBC Two.
Video caption: World Relay Championships: Japan disqualified after 'incredible' 4x100m baton catchWorld Relay Championships: Japan disqualified after 'incredible' 4x100m baton catch
Watch Japan pull off an astonishing - but illegal - catch of the baton in the 4x100m heats at the World Relay Championships in Yokohama, Japan.
Video caption: World Relay Championships: GB run quickest 4x100m time of 2019 to qualify fastestWorld Relay Championships: GB run quickest 4x100m time of 2019 to qualify fastest
Great Britain run the quickest time of 2019 to qualify fastest for the men's 4x100m final on Sunday at the World Relay Championships in Yokohama, Japan.
Who will be competing for GB?
The road to Tokyo 2020 begins for Britain's sprinters at the World Relay Championships in Yokohama, Japan, from 11-12 May.
Britain's men won the world 4x100m title in 2017 and will be optimistic about taking the World Relays crown with three of that victorious quartet - Adam Gemili, Nethaneel Mitchell-Blake and CJ Ujah - in action in Japan.
Only Dina Asher-Smith will be missing from the women's quartet that won 4x100m silver at the last World Championships.
In the 4x400m, Emily Diamond, Eilidh Doyle and Anyika Onuora all have Olympic bronze medals from 2016, while Martyn Rooney headlines a men's squad that also includes fellow world bronze medallists Dwayne Cowan and Rabah Yousif.
As well as the regular relay events seen at the Olympics, the Championships also include mixed relays and the 4x200m.
Britain will be fielding a team in the mixed 4x400m, which will be introduced to the World Championships schedule for the first time ever in Doha later this year, but will not be competing in the 4x200m, shuttle hurdles or 2x2x400m relays.
Getty ImagesCopyright: Getty Images
Mixed relay “interesting and fun” says Shakes-Drayton
Getty ImagesCopyright: Getty Images
Track athletics’ new event, the mixed
4x400m relay will bring “something different and exciting” to
the sport, says Great Britain World silver medallist Perri Shakes-Drayton, ahead
of this weekend’s World Relay Championships in Yokohama.
Shakes-Drayton admits that the new
event, which will make its debut in the Tokyo Olympics and involves teams of
two men and two women, takes some getting used to and throws up some challenges.
"When I saw it was listed on
the programme, I thought 'a mixed relay?' It took me by
surprise," said the 30-year-old.
Shakes-Drayton also said that
passing the baton between tall male athletes and shorter female team-mates had
proved a challenge and that this made men a more likely choice to run the
anchor leg.
“I think that's what the sport
needs - something different and exciting,” she said, reporting that the GB squad
was in good shape as they began their preparations for the World
Championships in Doha in September and the Olympics in 2020.
Get Inspired: How to get into athletics
Get Inspired
#GetInspired
You might want to be the next Mo Farah, or just want to get fit and see how well you can do - either way, athletics can be the sport for you.
It includes a huge variety of disciplines, so whether you want to run, jump or throw you can find an activity that suits you.
Live Reporting
All times stated are UK
Video caption: Brazil's Oliveira produces 'leg of his life' to take gold in Men's 100m relay final.Brazil's Oliveira produces 'leg of his life' to take gold in Men's 100m relay final. Video caption: Jamaica claim a disappointing bronze medal in the women's 200m relay after poor handoverJamaica claim a disappointing bronze medal in the women's 200m relay after poor handover 
Video caption: World Relay Championships: Japan disqualified after 'incredible' 4x100m baton catchWorld Relay Championships: Japan disqualified after 'incredible' 4x100m baton catch Video caption: World Relay Championships: GB run quickest 4x100m time of 2019 to qualify fastestWorld Relay Championships: GB run quickest 4x100m time of 2019 to qualify fastest 
Getty ImagesCopyright: Getty Images 
Getty ImagesCopyright: Getty Images 
Video caption: Get Inspired: Steve Cram on track athleticsGet Inspired: Steve Cram on track athletics
Latest PostBrazil win 4x100m relay as GB take bronze
Video content
Brazil's Oliveira produces 'leg of his life' to take gold in Men's 100m relay final as GB take bronze
Watch: Terrible handovers cost Jamaica relay glory
Video content
Jamaica claimed a disappointing bronze medal in the women's 200m relay after poor handovers.
How can I watch the World Relay Championships?
The BBC has live coverage on the Red Button, iPlayer, Connected TV and online, as well as highlights on BBC Two.
Sunday, 12 May
Live coverage
10:00-13:00, BBC Red Button and online
Schedule
10:10 - Women's 4x200m heats
10:31 - Men's 4x200m heats
10:52 - Women's 4x400m B final
11:05 - Men's 4x400m B final
11:21 - Women's 4x400m final
11:37 - Men's 4x400m final
11:53 - Mixed 4x400m final
12:09 - Women's 4x200m final
12:23 - Men's 4x200m final
12:37 - Women's 4x100m final
12:52 - Men's 4x100m final
GB women fail to finish at World Relays
GB women's 4x100m relay team misses out on the chance to qualify for the World Championships at the World Relays in Yokohama.
Read moreWatch: Japan make 'incredible' baton catch - but are disqualified
Video content
Watch Japan pull off an astonishing - but illegal - catch of the baton in the 4x100m heats at the World Relay Championships in Yokohama, Japan.
GB 4x100m team reach final with quickest time of 2019
Video content
Great Britain run the quickest time of 2019 to qualify fastest for the men's 4x100m final on Sunday at the World Relay Championships in Yokohama, Japan.
Who will be competing for GB?
The road to Tokyo 2020 begins for Britain's sprinters at the World Relay Championships in Yokohama, Japan, from 11-12 May.
Britain's men won the world 4x100m title in 2017 and will be optimistic about taking the World Relays crown with three of that victorious quartet - Adam Gemili, Nethaneel Mitchell-Blake and CJ Ujah - in action in Japan.
Only Dina Asher-Smith will be missing from the women's quartet that won 4x100m silver at the last World Championships.
In the 4x400m, Emily Diamond, Eilidh Doyle and Anyika Onuora all have Olympic bronze medals from 2016, while Martyn Rooney headlines a men's squad that also includes fellow world bronze medallists Dwayne Cowan and Rabah Yousif.
As well as the regular relay events seen at the Olympics, the Championships also include mixed relays and the 4x200m.
Britain will be fielding a team in the mixed 4x400m, which will be introduced to the World Championships schedule for the first time ever in Doha later this year, but will not be competing in the 4x200m, shuttle hurdles or 2x2x400m relays.
Mixed relay “interesting and fun” says Shakes-Drayton
Track athletics’ new event, the mixed 4x400m relay will bring “something different and exciting” to the sport, says Great Britain World silver medallist Perri Shakes-Drayton, ahead of this weekend’s World Relay Championships in Yokohama.
Shakes-Drayton admits that the new event, which will make its debut in the Tokyo Olympics and involves teams of two men and two women, takes some getting used to and throws up some challenges.
"When I saw it was listed on the programme, I thought 'a mixed relay?' It took me by surprise," said the 30-year-old.
Shakes-Drayton also said that passing the baton between tall male athletes and shorter female team-mates had proved a challenge and that this made men a more likely choice to run the anchor leg.
“I think that's what the sport needs - something different and exciting,” she said, reporting that the GB squad was in good shape as they began their preparations for the World Championships in Doha in September and the Olympics in 2020.
Get Inspired: How to get into athletics
Get Inspired
#GetInspired
You might want to be the next Mo Farah, or just want to get fit and see how well you can do - either way, athletics can be the sport for you.
It includes a huge variety of disciplines, so whether you want to run, jump or throw you can find an activity that suits you.
Find local athletics opportunities in England, Wales, Scotland and Northern Ireland.
Video content