Who won it in London?published at 02:56 British Summer Time 16 August 2016
Women's 400m final
Sanya Richards-Ross won the 400m in 2012, but she is not here after she twanged a hamstring earlier in the summer. She has now retired altogether.
Christine Ohuruogu took silver in London but the Brit didn't get through the semis.
All change.