Summer McIntosh at world swimming championships

McIntosh, who won a national-record three Olympic gold medals and a silver last summer in Paris, is trying to test herself in five different events as part of her preparation for the 2028 Los Angeles Olympic Games where she aims to win five individual golds.

The women's 200m butterfly world record belongs to China's Liu Zige, who set the world record at 2:01.81 in 2009 during what has been dubbed the “super suit era,” before textiles and suit design became more tightly regulated.

The final swims Saturday August 2nd at 8:21 AM ET on CBC Gem.