Ottawa Fall Colours Marathon
Ottawa, Canada · Sunday 11 October 2026
Ottawa Fall Colours Marathon is a scenic event held in Cumberland, Ontario, Canada. The race features a full marathon, half marathon, 10K, 5K, and a 1K Turkey Trot for kids, making it accessible to runners of all levels. The course passes through historic Cumberland Village, offering breathtaking views of the fall colors. It is a Boston Marathon qualifier, attracting serious runners from across North America.
Difficulty Calculator
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:m
:s
Adjusted Time
3:49:25
Time difference: -10.6 minutes compared to a flat, road, temperate course.
Course Details
Elevation Gain0m
Elevation High120m
Elevation Low50m
Weather Forecast
High17°C
Low6°C
Chance of Rain0%
How hard is Ottawa Fall Colours Marathon?
Very Easyharder than 2% of marathons
Flattest / easiestHardest
On our difficulty model, Ottawa Fall Colours Marathon plays about 4 minutes faster than an average road marathon - a genuine PB course for a 3:30 runner. It ranks #1132 hardest of 1150 marathons we analyse, and #47 of 51 in Canada. Use the calculator above to see the exact adjusted time for your own goal pace.
What will you run at Ottawa Fall Colours 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 Ottawa Fall Colours Marathon | Difference |
|---|---|---|
| 3:00:00 | 2:52:08 | −07:52 |
| 3:30:00 | 3:20:51 | −09:09 |
| 4:00:00 | 3:49:25 | −10:35 |
| 4:30:00 | 4:17:50 | −12:10 |
| 5:00:00 | 4:46:07 | −13:53 |
| 5:30:00 | 5:14:16 | −15:44 |
| 6:00:00 | 5:42:18 | −17:42 |
Use the calculator above for your exact goal time. Want a prediction from your own training? Try the marathon time predictor.
Ottawa Fall Colours Marathon 2026 Course Analysis
Ottawa Fall Colours Marathon is a full marathon held in Ottawa, Canada. It is scheduled for Sunday 11 October 2026. The course is run on road surface with 0m of total climbing, with its high point near 120m above sea level. For registration and full race details, visit the official Ottawa Fall Colours Marathon website.
Elevation Profile
This is a very flat course, with only 0m 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. Near-ideal running temperatures are expected, ranging from 6°C to 17°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
Ottawa Fall Colours 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 Ottawa Fall Colours Marathon against other marathons to find the right race for your goals.
Marathons of similar difficulty
If Ottawa Fall Colours Marathon fits your goal, these courses play out about the same on our difficulty model.