After years of finishing among the minor medals, Canada’s Andre De Grasse got his gold on Wednesday, winning the Olympic men’s 200 metres with a scorching time of 19.62 seconds that made him the eighth-fastest man ever over the distance. De Grasse, who claimed the 100m bronze and 200m silver at the 2016 Games and 2019 World Championships, finally fulfilled his potential under the clear night sky at Tokyo’s Olympic Stadium. “I’ve been through so much these last five years on and off the track,” he said, referring to his lingering hamstring problem after the last Games in Rio de Janeiro and a severe bout of mononucleosis.