TCS Toronto WaterfrontMarathon

The TCS Toronto Waterfront Marathon is Canada’s premier running event and the grand finale of the Canada Running Series. Since 2017, the race has served as the Athletics Canada National Marathon Championships and has doubled as the Olympic Trials. 2025 is the 36th edition of the event and we’re looking forward to running, walking and wheeling with you on October 18-19th in the streets of Toronto!

With innovation and organization as our guiding principles, we stage great experiences for runners of all levels, from Canadian Olympians to recreational and charity participants. Our mission is “building community through the sport of running” and we are committed to making sport part of sustainable communities and the city-building process.

Stay connected to TCS Toronto Waterfront Marathon and your fellow runners through social media using our official race hashtags #TOWaterfront42K #ChooseTOrun