World Championships: Canadian teenager Summer McIntosh wins women's 200m butterfly

McIntosh's time was a new junior world record and adds to her silver medal in the 400m freestyle. The Toronto-born swimmer was the youngest member of Canada's Olympic team in Tokyo where she finished fourth in the women's 400m freestyle.

"I didn't expect to go 2:05," McIntosh said. "But as soon as I stepped out with all the energy and excitement from the crowd, I just fed off that.

I got a lot of adrenaline and motivation and put it down." China's Yufei Zhang took the bronze medal.