A summary of Thursday's events at the World Athletics Championships.
Australian Olympic officials say they will oppose plans to stage the 2016 Rio Olympics swimming finals late at night.
Olympic champion and world record holder David Rudisha ran from the front and trusted his finishing pace to regain the world 800 metres title at the World Athletics Championships in Beijing, on Tuesday.
'We keep climbing one step and slipping three. In 2004, our relay team was 7th in the world. Then we slipped from there. Otherwise, today our 4x400 metres relay team would have been gearing for a medal at the Rio Games.' 'If we need to compete at the world level, our thinking needs to be at world level. You can't have akhada thinking.'
Usain Bolt returned to the scene of his triple Olympic glory and duly delivered for 60,000 camera-flashing fans as he overcame a slow start to win the 100 metres and give the London Anniversary Games the Friday finale it demanded.
Away from the cricket field, it was a year in which Sania Mirza was unarguably the biggest success story with her staggering 10 titles on the Tour -- two of them Grand Slams.