The 16-year-old continues her meteoric rise in the sport by breaking a record previously held by Ariarne Titmus and Katie Ledecky. Find out more below
Canada's swim star Summer McIntosh reveals the secret behind her success in our exclusive chat. And the two-time world champion talks about her relationship with water.
Canadian Summer McIntosh, 16, gets second gold medal at swimming worlds in Japan - The San Diego Union-Tribune
Canadian swimmer Summer McIntosh wins 400m freestyle silver at World Championship
Ariarne Titmus says she has 'fire in the belly' after Canadian
Summer McIntosh wins 400 individual medley in stunning swim - The Abbotsford News
Summer McIntosh sets world record in 400m freestyle at Canadian swimming trials
Ledecky breaks 1,500m freestyle world record by 10 seconds!
Canadian swimmer McIntosh sets women's world record in 400-metre freestyle
Candian swimmer smashes Ariarne Titmus world record
16-Year-Old Summer McIntosh Breaks the World Record in the 400 Free at Canadian Trials
Summer Sings A Song Of Swimming Greatness With 4:25.87 World 400m Medley Mark - StateOfSwimming