GB's final medalpublished at 21:41 British Summer Time 13 August 2017
Men's 4x400m relay
Martyn Rooney anchors the British quartet to a solid bronze.
Great Britain finish with six medals to meet their target
GB women win 4x400m silver behind Felix's USA
GB win men's 4x400m bronze behind Trinidad & Tobago & USA
Semenya powers to 800m gold; Sharp 8th
Kenya's Obiri wins 5,000m gold; Muir 6th & McColgan 10th
Barshim wins high jump; Grabarz 6th
Kenya's Manangoi wins 1500m final; O'Hare 12th
Tom Rostance
Men's 4x400m relay
Martyn Rooney anchors the British quartet to a solid bronze.
Usain Bolt is out on the London track for one more time. London Mayor Sadiq Khan presents him with a huge frame filled with a piece of the 2012 track.
Denise Lewis
Olympic heptathlon gold medallist on BBC TV
The team have had a lot of stick over the last few days and having met their medal target, they will be saying "how do you like me now guys!?".
US finish with 30 medals, one shy of the best ever performance by a nation in the worlds.
It's a case of what may have been for Great Britain. Six medals is on target but if all of those fourth-placed finishes could have moved up a touch...
Men's 4x400m relay
I think that that is actually the first time the US have been beaten in that event on the track since Great Britain did them in Tokyo in 1991.
They have been stripped of four titles since because of doping though.
Women's discus final
Men's 4x400m relay
Steve Cram
BBC athletics commentator on BBC TV
Martyn Rooney had injury problems early on but he has always been a great relay runner.
Just for a moment in the back straight, you thought he was closing on the top two but just never got close enough.
#bbcathletics
Sam Holloway: Proud to see GB winning a medal in every relay. Proper teamwork!
Gareth Hancock: Well done, lads. Another great medal @TeamGB, external. Cowen superb. That hits the team target as well.
Men's 4x400m relay
The last team other than the US to win this event was France in 2003 - when the States were disqualified after winning on the track.
Men's 4x400m relay
Matt Hudson-Smith: 45.4 seconds
Dwayne Cowan: 44.2 secs
Rabah Yousif: 44:9 secs
Martyn Rooney: 44.5 secs
Men's 4x400m relay
What a run from the Trinidad & Tobago quartet. United States had won six in a row in the worlds.
Men's 4x400m relay
A very solid last leg from Martyn Rooney, he threatened the front two with 70m to go but couldn't get up there. It's bronze for Great Britain and a sixth medal of the championships.
Men's 4x400m relay
Fred Kerley sees the US home..NO! He's run down inside the last 50m and it's gold for T&T!
What a last leg from Lalonde Gordon!
Men's 4x400m relay
Steve Cram
BBC athletics commentator on BBC TV
These three pulling clear of the rest. There is a medal here for Britain.
ROOOOOOONNNEEEYYYYY goes up the cry from the crowd!
Men's 4x400m relay
US lead, Trinidad & Tobago and Great Britain.
It will be Martyn Rooney fighting for a medal on the last leg...
Men's 4x400m relay
Great Britain into second at the start of the third leg!
Men's 4x400m relay
United States, Spain, GB and Trinidad and Tobago as the stagger unwinds...
Men's 4x400m relay
Matthew Hudson-Smith only made the semis of the individual event but that's a decent first leg, he hands over with Great Britain in maybe third.