TCS Toronto Waterfront Marathon

Lace up your runners or get your loudest cheering voice ready—the TCS Toronto Waterfront Marathon is back as the grand finale of the Canada Running Series. Starting out from Nathan Phillips Square in the heart of downtown, this premier athletic showcase doubles as the Athletics Canada National Marathon Championships and has previously served as the Olympic Trials.

Building Community Through Running More than just a race, the marathon operates under the inspiring mission of building community through sport. Whether you are aiming for a personal best on the fast, scenic course hugging Lake Ontario, or running to support one of the hundreds of affiliated local charities, the energy along the route is unmatched. Thousands of spectators line the streets with signs, cowbells, and enthusiasm, transforming the city into one massive street party.

Spectator & Participant Tips Nathan Phillips Square serves as the central hub, bustling with activity, gear tents, and post-race celebrations. If you are heading down to cheer, great vantage points include the early stretches near City Hall, the scenic waterfront sections, and the electric finish line. Tag your posts with #TOWaterfront42K and #ChooseTOrun to join the digital conversation as Toronto puts its best foot forward.