Round 1 took place on 1 August, with the 63 athletes involved being split into 8 heats, 7 heats of 8 and 1 of 7 athletes.[5] The first 2 athletes in each heat ( Q ) and the next 8 fastest ( q ) qualified to the semi-final.[6] The overall results were as follows:[7]
The semi-final took place on 2 August, with the 24 athletes involved being split into 3 heats of 8 athletes each.[8] The first 2 athletes in each heat ( Q ) and the next 2 fastest ( q ) qualified to the final.[9] The overall results were as follows:[10]