World and Olympic champion Usain Bolt powered away late in the race to win the 100 metres in 9.8 seconds at the season-closing Diamond League meeting in Brussels on Friday.
Sifan Hassan of the Netherlands broke the 23-year-old women's mile world record on Friday when she clocked four minutes 12.33 seconds in a race dedicated to former American runner Gabe Grunewald, who died from cancer last month at the age of 32.