Toronto Marathon
Toronto, Canada · Monday 3 May 2027
The Toronto marathon features a net elevation drop of nearly 100 meters, starting at about 175 meters and finishing near 78 meters above sea level. The course begins in the northern part of Toronto and moves south towards Lake Ontario, resulting in a route that is primarily point-to-point with several lengthy, gentle descents and only a few rolling uphill sections, particularly in the early miles.
Difficulty Calculator
h
:m
:s
Adjusted Time
3:53:07
Time difference: -6.9 minutes compared to a flat, road, temperate course.
Course Details
Elevation Gain94m
Elevation High180m
Elevation Low77m
Weather Forecast
High14°C
Low7°C
Chance of Rain0%
How hard is Toronto Marathon?
Easyharder than 10% of marathons
Flattest / easiestHardest
On our difficulty model, Toronto Marathon plays about 1 minute faster than an average road marathon for a 3:30 runner. It ranks #1035 hardest of 1150 marathons we analyse, and #37 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 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 Marathon | Difference |
|---|---|---|
| 3:00:00 | 2:53:56 | −06:04 |
| 3:30:00 | 3:23:32 | −06:28 |
| 4:00:00 | 3:53:07 | −06:53 |
| 4:30:00 | 4:22:41 | −07:19 |
| 5:00:00 | 4:52:13 | −07:47 |
| 5:30:00 | 5:21:44 | −08:16 |
| 6:00:00 | 5:51:14 | −08:46 |
Use the calculator above for your exact goal time. Want a prediction from your own training? Try the marathon time predictor.
Toronto Marathon 2027 Course Analysis
Toronto Marathon is a full marathon held in Toronto, Canada. It is scheduled for Monday 3 May 2027. The course is run on road surface with 94m of total climbing, with its high point near 180m above sea level. For registration and full race details, visit the official Toronto Marathon website.
Elevation Profile
This is a very flat course, with only 94m 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 May, the expected race day conditions are as follows. Near-ideal running temperatures are expected, ranging from 7°C to 14°C. This temperature range is widely considered optimal for marathon performance, allowing efficient heat dissipation without cold-related issues. There is a low chance of rain (0%), so dry conditions are likely.
Surface Type: Road
Toronto 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 Marathon against other marathons to find the right race for your goals.
Marathons of similar difficulty
If Toronto Marathon fits your goal, these courses play out about the same on our difficulty model.
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