Ethiopia's Almaz Ayana put on a brilliant display of front-running to win the women's 5,000 metres at the world championships on Sunday and deprive compatriot Genzebe Dibaba of an unprecedented double gold.
Olympic 200 metres gold medallist Allyson Felix has chosen to run the 400 metres at next month's world championships, her coach told Reuters on Wednesday.
A baffled Usain Bolt ran his worst turn ever as he barely won the 200 metres at the Adidas Grand Prix meet in a sluggish 20.29 seconds on a warm, windy day at Randall's Island in New York, on Saturday.
Jamaica won the showcase 4x200 metres relay without Usain Bolt as their American rivals dropped the baton at the IAAF World Relays in Nassau, Bahamas on Sunday.
Tyson Gay overcame Olympic bronze medallist Justin Gatlin's quicker start and sped to the year's fastest 100 metres, clocking 9.75 seconds at the US trials for the World championships on Friday.
