Races Marathon · Toronto, Canada
Toronto Waterfront Marathon
Toronto Waterfront Marathon is a flat marathon in Toronto, Canada, held each October. Canada's fastest big-city course — long flat stretches along Lake Ontario with only a gentle Bay Street rise near the finish. Mid-October is reliably cool, 5-14C — near-perfect racing weather. The Toronto Waterfront Marathon's flat profile means your pacing discipline, not the terrain, decides the day.
Page rebuilt 2026-10-01 · race facts not independently verified — confirm dates and entries on the official race site
When
October
every year
Course
flat
Marathon
Conditions
Mid-October is reliably cool, 5-14C — near-perfect racing weather.
Racing this course well
Canada's fastest big-city course — long flat stretches along Lake Ontario with only a gentle Bay Street rise near the finish.
The Toronto Waterfront Marathon's flat profile means your pacing discipline, not the terrain, decides the day.
Pick your goal for Toronto
Pace charts, weekly structure and timelines for the most common marathon goals:
We don’t hold a confirmed date for this edition, so any countdown comes from the date you enter here.
Build your training around Toronto Waterfront Marathon.
RunV works backwards from race day to today and rearranges the weeks when life interrupts. It does not adapt to this specific course — the pacing guidance above is where the course knowledge is.
Everything above stays free and complete — this is an optional next step, not a paywall.
Asked often
- When is the Toronto Waterfront Marathon?
- It is held each October in Toronto, Canada. Check the official Toronto Waterfront Marathon site for the exact date and entry windows.
- Is the Toronto Waterfront Marathon course flat?
- Canada's fastest big-city course — long flat stretches along Lake Ontario with only a gentle Bay Street rise near the finish.
- How should I train for the Toronto Waterfront Marathon?
- Build for the course you'll actually race at the Toronto Waterfront Marathon: flat terrain, October conditions. RunV generates a plan for your goal time and rebuilds it every time life interrupts the Toronto build.
Not sure what to target? Predict your marathon time from a recent race →
More marathon races
Build for Toronto — around your actual life
RunV engineers your block backwards from race day in October — and rebuilds it every time training doesn't go to script.
