31 Oct 2020
31 Oct 2019
15 Aug 2016
12 Aug 2016
20 Jul 2015
Tracking the number of days each world record has stood.
The top 10 heptathletes and their strengths and weaknesses across seven events.
Pierre-Jean Vazel breaks down the South African's race in Rio.
Here's a breakdown of splits per 100m for the medalists. When Ayana was gone, she was gone.
The 1500m world record has fallen!