Gold Medal - USApublished at 02:39 British Summer Time 21 August 2016
Men's 4x400m relay
LaShawn Merritt, bronze in the individual, sees it home for the USA,
Jamaica come from nowhere to take silver, Bahamas bronze. Botswana went backwards.
Mo Farah wins gold in the men's 5,000m final
GB claim bronze in final of the women's 4x400m relay
Tom Rostance
Men's 4x400m relay
LaShawn Merritt, bronze in the individual, sees it home for the USA,
Jamaica come from nowhere to take silver, Bahamas bronze. Botswana went backwards.
Men's 4x400m
USA v Botswana in the chase for gold, Jamaica moving up close from third.
Men's 4x400m
It's Botswana who lead, no here come the US. Tony McQuay strides out ahead. Jamaica just moving into bronze position.
Men's 4x400m relay
Let's try and avoid any disqualifications in this race then eh?
The Bahamas have gone out hard.
Men's 4x400m relay
Arman Hall takes the US away, with Peter Matthews on first leg for Jamaica.
And away we go!
Men's 4x400m relay final
Michael Johnson
Four-time Olympic gold medallist athlete on BBC One
US and Jamaica for the gold I believe and then it will be a battle for bronze.
Men's 4x400m relay
Belgium have three Borlee brothers in their quartet. Family advantage?
The Bahamas are fancied but like the women it could be USA v Jamaica for gold.
Women's 4x400m relay
Colin Jackson
Two-time world 110m hurdles champion on BBC TV
So many of those girls have been working hard this winter to try and stay injury free. I was on a train journey with Emily Diamond and we had a long chat about her career and how she is progressing and she had a good solid winter. I am so pleased for the women.
It slipped under my radar there but bronze in the 4x400m means that Christine Ohuruogu ends her Olympic career with medals at three Games.
A gold, silver and a bronze.
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Men's 4x400m relay
The final event on the track, as is tradition, is the men's 4x400m relay.
No Great Britain team. If you missed why, they were disqualified after winning their heat because Matt Hudson-Smith was ruled to have had part of his foot out of the takeover zone when he began running.
British Athletics said it was "hugely disappointed" and confident the team would have won a medal in the final.
The appeal was rejected because video evidence was inconclusive, meaning the decision of the referee must be upheld.
GB take bronze
Denise Lewis
Olympic heptathlon gold medallist on BBC TV
This GB quartet knew what they had to do. They knew there was a sniff of a medal. They have every confidence in each other. Brilliant job.
Nicholas Barnett: Just feel so proud of my country!
TCJ: Team GB has now won more medals in Rio than they did in London... Insane! And still one medal to come tomorrow!
Women's +67kg Taekwondo
China's Zheng Shuyin has won gold in the women's +67kg taekwondo, beating Mexican Maria Espinoza 5-1 in the final.
Zheng had earlier beaten GB's Bianca Walkden 4-1 in a golden-point round in the semi-final, the Briton eventually taking bronze alongside American Jackie Galloway.