Canada's Andre De Grasse and Jamaica's Sherone Simpson won their respective 100 meters finals at the Pan American Games on Wednesday while St. Lucia enjoyed a landmark moment at the multisport competition.

De Grasse, Canada's newest sprinting sensation, took the men's final in 10.05 seconds in front of his home crowd while three-time Olympic medalist Simpson crossed the line in a season-best 10.95.

"This is a once-in-a-lifetime opportunity to compete at home in front of relatives and friends," De Grasse, who will also compete in the 200 meters and 4x100m relay, told reporters.