Justin Gatlin wins men's 100m; GB's Adam Gemili third

USA's Tori Bowie wins women's 100m; Jamaica's Shelly-Ann Fraser-Pryce eighth

Great Britain's Eilidh Child finishes third in the women's 400m hurdles

LaShawn Merritt of the USA eases to men's 400m win

USA's Brianna Rollins wins tight women's 100m hurdles race; GB's Tiffany Porter fifth

Silas Kiplagat of Kenya wins the men's 1500m in 3:30:44