Toronto Waterfront Marathon
Toronto, Canada · Sunday 18 October 2026
Toronto Waterfront Marathon is Canada's most prestigious road race, held annually in Toronto, Ontario. The event features a full marathon and half marathon, with the course running along the scenic waterfront of Lake Ontario. The race is an elite label marathon certified by World Athletics, attracting top athletes from around the world. The event has seen numerous record-breaking performances, including Canadian national records.
Difficulty Calculator
h
:m
:s
Adjusted Time
3:55:57
Time difference: -4.0 minutes compared to a flat, road, temperate course.
Course Details
Elevation Gain57m
Elevation High114m
Elevation Low77m
Weather Forecast
High20°C
Low12°C
Chance of Rain33%
How hard is Toronto Waterfront Marathon?
Moderateharder than 24% of marathons
Flattest / easiestHardest
On our difficulty model, Toronto Waterfront Marathon plays about 1 minute slower than an average road marathon for a 3:30 runner. It ranks #879 hardest of 1150 marathons we analyse, and #31 of 51 in Canada. Use the calculator above to see the exact adjusted time for your own goal pace.
What will you run at Toronto Waterfront Marathon?
Estimated finish times on this course versus the same effort on an average road marathon, based on its elevation, surface, and expected race-day temperature.
| Average-course time | On Toronto Waterfront Marathon | Difference |
|---|---|---|
| 3:00:00 | 2:56:02 | −03:58 |
| 3:30:00 | 3:26:00 | −04:00 |
| 4:00:00 | 3:55:57 | −04:03 |
| 4:30:00 | 4:25:52 | −04:08 |
| 5:00:00 | 4:55:46 | −04:14 |
| 5:30:00 | 5:25:38 | −04:22 |
| 6:00:00 | 5:55:28 | −04:32 |
Use the calculator above for your exact goal time. Want a prediction from your own training? Try the marathon time predictor.
Toronto Waterfront Marathon 2026 Course Analysis
Toronto Waterfront Marathon is a full marathon held in Toronto, Canada. It is scheduled for Sunday 18 October 2026. The course is run on road surface with 57m of total climbing, with its high point near 114m above sea level. For registration and full race details, visit the official Toronto Waterfront Marathon website.
Elevation Profile
This is a very flat course, with only 57m of total climbing and little change in altitude throughout. Flat profiles let you hold an even pace from start to finish, which makes this a fast, PB-friendly race.
Expected Race Day Weather
Based on historical weather data for October, the expected race day conditions are as follows. Moderate temperatures between 12°C and 20°C are expected. While comfortable for most runners, those targeting fast times should pay attention to hydration, as these temperatures can impact performance on race day. There is a moderate chance of rain (33%). Runners may want to prepare for wet conditions but shouldn't expect persistent rainfall.
Surface Type: Road
Toronto Waterfront Marathon is run on road surfaces, which provide the fastest and most predictable conditions for racing. Road courses allow for consistent pacing and are typically the best choice for a personal best.
Looking for an easier marathon or a tougher challenge? You can also compare Toronto Waterfront Marathon against other marathons to find the right race for your goals.
Marathons of similar difficulty
If Toronto Waterfront Marathon fits your goal, these courses play out about the same on our difficulty model.