Overview
The Toronto Waterfront Marathon is one of the world's largest marathons, drawing approximately 14k finishers on an urban road in Toronto, Canada. The course starts and finishes at Nathan Phillips Square. The route follows the Lake Ontario waterfront through the Beaches, High Park, and downtown Toronto. Mostly flat with minor rises leaving the lakeshore.
Toronto Waterfront Marathon is a certified 42.195 km (26.2 mile) marathon — the standard World Athletics marathon distance.
Toronto Waterfront Marathon 2026 race day
The next Toronto Waterfront Marathon is scheduled for Sunday, 18 October 2026 with a 8:45 am start. The certified course covers 42.195 km (26.2 miles) with 149 m of climbing on a mostly flat with gentle undulations layout.
Toronto Waterfront Marathon course route
The Toronto Waterfront Marathon is a flat lakefront loop starting and finishing at Nathan Phillips Square, following Lake Ontario through the Beaches, High Park, and downtown Toronto. The waterfront and park sections are the easiest because the course stays level and quick, while the tougher challenge is holding pace across so many flat miles rather than climbing. Spectator support is strongest at Nathan Phillips Square, along the Beaches waterfront, and through the High Park approach.
Toronto Waterfront Marathon route map
Official course map — view on race website
Toronto Waterfront Marathon elevation profile
The Toronto Waterfront Marathon course is mostly flat with gentle undulations over 42.195 km (26.2 miles). Runners cover 149 metres of climbing and 242 metres of descent, with a net descent of 93 metres from start to finish.
Entry requirements
For the Toronto Waterfront Marathon, registration opens on the official race website (torontowaterfrontmarathon.com) and is offered on a first-come, first-served basis. The race fills quickly — early sign-up is strongly advised.
Toronto Waterfront Marathon course video
Race-day footage from the course to help you picture the route, crowds, and key landmarks on marathon day.
Toronto Waterfront Marathon 2025 Course Preview
Frequently Asked Questions
- What is the Toronto Waterfront Marathon elevation profile?
- The Toronto Waterfront Marathon has 149 metres of total climbing and 242 metres of descent over 42.195 km (26.2 miles). The course is mostly flat with gentle undulations, with 93 metres of net descent from start to finish.
- Where can I find the Toronto Waterfront Marathon route map?
- This page includes a Toronto Waterfront Marathon course map showing the full 42.195 km route from start to finish. The official course map is published at www.torontowaterfrontmarathon.com/course/. Follows the Lake Ontario waterfront through the Beaches, High Park, and downtown Toronto.
- How long is the Toronto Waterfront Marathon?
- The Toronto Waterfront Marathon is the standard marathon distance of 42.195 kilometres (26.2 miles), certified to World Athletics rules. Starts and finishes at Nathan Phillips Square.
- Is the Toronto Waterfront Marathon flat?
- Yes. The Toronto Waterfront Marathon is mostly flat with gentle undulations with 149 metres of total climbing over 42.195 km (26.2 miles) — a profile that suits runners chasing personal bests or Boston qualifying times.
- What time does the Toronto Waterfront Marathon start?
- The 2026 Toronto Waterfront Marathon starts at 8:45 am local time on Sunday, 18 October 2026. Arrive early for baggage drop and corral access — official race communications on www.torontowaterfrontmarathon.com/ confirm any last-minute schedule changes.
- Does the Toronto Waterfront Marathon serve as the Canadian Olympic Trials?
- Yes. The Toronto Waterfront Marathon has regularly hosted the Athletics Canada Olympic and Paralympic Trials marathon, making it the most prestigious road race in Canada for elite athletes chasing national team selection.
- What is the course like at the Toronto Waterfront Marathon?
- The course hugs the Lake Ontario shoreline through downtown Toronto, taking runners past Harbourfront Centre, the CN Tower skyline, and the Eastern Beaches before returning along the waterfront. Total elevation gain is approximately 149 metres, with a net drop of about 93 metres — ideal for fast times.
- When is the Toronto Waterfront Marathon held?
- The Toronto Waterfront Marathon is typically held on the third Sunday of October, capitalising on cool autumn temperatures that favour personal bests. Check torontowaterfrontmarathon.com for the exact date each year.
- How do I enter the Toronto Waterfront Marathon?
- Registration opens on the official race website (torontowaterfrontmarathon.com) and is offered on a first-come, first-served basis. The race fills quickly — early sign-up is strongly advised.
- Is the Toronto Waterfront Marathon good for a personal best?
- Absolutely. The flat lakeshore course, cool October weather, strong elite field, and frequent use as an Olympic Trials qualifier combine to make Toronto one of the faster marathon courses in North America.
Last updated 18 July 2026. Edition dates and course details are reviewed regularly.
Nearby Marathons
Other races closest to Toronto.
Buffalo, New York, United States· 100 km away
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The Buffalo Marathon draws approximately 1,209 finishers each May on an urban road in Buffalo, United States. Western New York's signature Memorial Day marathon combines a flat course with strong local crowd support. The route passes Delaware Park, waterfront stretches along Lake Erie, and Buffalo neighborhoods on a flat urban loop. The course is very flat throughout.
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Erie, Pennsylvania, United States· 184 km away
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The Erie Marathon draws approximately 1,300 finishers each September on a lakeside loop road in Erie, United States. Running almost entirely inside a state park gives it an unusually calm race-day feel for a fast marathon. The loop passes Lake Erie shoreline, wooded park roads, and wide open lake views with almost no climbing. The course is very flat throughout.
Next race: Sunday, 6 September 2026
Cleveland, Ohio, United States· 309 km away
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The Cleveland Marathon draws approximately 4,500 finishers on an urban road in Cleveland, United States. The course starts and finishes in downtown Cleveland. The route crosses the Hope Memorial Bridge, passes Rock and Roll Hall of Fame, and follows the Lake Erie shoreline. Hilly with climbs on the Hope Memorial Bridge and through Ohio City.
Next race: Sunday, 16 May 2027
Detroit, Michigan, United States· 334 km away
Detroit Marathon
The Detroit Marathon draws approximately 5,500 finishers on an urban road in Detroit, United States. The course starts and finishes in downtown Detroit. Mostly flat with climbs on the bridge and tunnel approaches.
Next race: Sunday, 18 October 2026
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