Races›Canada›Ontario›Toronto Waterfront Marathon
Toronto, ON, seen from above
October 2027 · date to be announced

Toronto Waterfront Marathon

Toronto, Ontario · Canada
RoadLake

Canada's biggest marathon, flat along Lake Ontario

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Course

A flat city loop: north up Yonge Street, west to Bathurst and down to Lake Ontario, then a long out-and-back along Lake Shore Boulevard to High Park and back along the water past Harbourfront. East across the Don to Leslieville and the Beaches turnaround, and home along Queen Street and Eastern Avenue to a rising final kilometre up Bay Street, finishing outside Old City Hall. About 177 m of climbing in all, most of it in bridge crossings and that last hill.

Marathon42.2 km
Half Marathon21.1 km
5K5 km

Key dates

Provisional date, projected from last year — the organiser has not announced this edition yet. We show the month only.

About

The TCS Toronto Waterfront Marathon is Canada's largest marathon, drawing tens of thousands of runners along a flat, fast course beside Lake Ontario. It also offers half marathon and 5K distances, and serves as a Boston Marathon qualifier.

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A confirmed date shows its day; a provisional one shows only its month, because we won't claim a day we don't have. This page is rebuilt every night from the RunCalendar catalogue.