Britain's Jonny Brownlee, Gordon Benson and Grant Sheldon are all on the start list for the men's elite race today.
Find the schedule, BBC coverage times, standings & results here.
Like running, swimming or cycling? Fancy doing all three, one after the other? If you answered yes to the previous two questions then triathlon is the sport for you!
Get Inspired have put together a handy guide here to help you get involved in the sport.
Today is the seventh race of the 2017 Triathlon World Series and will be taking place in the Canadian city of Montreal.