Australia's Emma McKeon surged in the last 15 m of the race to win gold in an Olympic record time of 23.81, having also bettered the mark in the heats and semi-final.

Following elbow surgery in February, Sweden's Sarah Sjöström achieved her first podium finish at these Games with the world-record holder clocking a 24.07 to win silver.

Poland’s Katarzyna Wasick and China's Wu Qingfeng came equal fifth in 24.32, while Australia's Cate Campbell (24.36) and the U.S.'s Abbey Weitzeil (24.41) rounded out the championship field.

Up to two swimmers per National Olympic Committee (NOC) can automatically qualify by swimming that time at an approved qualification event.

Up to one swimmer per NOC meeting that time is eligible for selection, allocated by world ranking until the maximum quota for all swimming events is reached.