Kylie Masse is on top of the swimming world. Canadian Kylie Masse sets world record in 100m backstroke2:51But success hasn't always come easy for the 21-year-old. Three years ago, Masse was ranked 201st in the world in the women's 100 back. Olympic challengeEven with her world record, Masse isn't ready to stop there. World record holder Kylie Masse: 'Swimming is always moving forward'3:17The next Olympics are three years away but MacDonald said Masse is now "the hunted as opposed to the hunter" and challenges his pupil to keep it that way until Tokyo.

Source: CBC News September 06, 2017 15:24 UTC