Ottawa, ON
Sunday, May 30, 2027




4.9 Stars from 7 ReviewsDon't waste months of training only to run the wrong pace.
Ottawa Marathon Pace Bands are adjusted for the specific terrain of the course, your goal time and pacing strategies.
Only $9.99
Race Dates
2027: Sunday, May 30, 2027Course Information
Profile: Rolling HillsRace Day Weather
Mean Temp.: 64°F (17°C)PR Score & Course Score
PR Score: 98.24Race Size
2026: No ResultsBQ Percentages
2026: N/AMiscellaneous Information
Pace Groups?: Yes
Race Day Temperatures |
High: 71°F (22°C) |
Race Start Conditions |
57°F (14°C) |
PR Score |
97.75 |
Course Score |
98.82 |
The Ottawa Marathon was the 3rd largest marathon in Canada in 2024 based on the number of finishers. The 2025 marathon ranking is not available because the race was cancelled. Race size gives runners useful context when comparing marathon events, including expected field size, crowd support, and overall race atmosphere.
In 2024, 10.9% of Ottawa Marathon finishers achieved Boston Marathon qualifying times.
Based on its percentage of Boston Qualifiers (BQs), the Ottawa Marathon ranked 14th among marathons in Canada in 2024. In Ontario, it ranked 8th in 2024.
The Ottawa Marathon has a Course Score of 98.56, ranking it as the 21st fastest marathon course in Canada and the 11th fastest marathon course in Ontario.
Typical race-time temperature and humidity levels are slightly above the ideal range for optimal marathon performance. Combined with the course profile, this gives the Ottawa Marathon a PR Score of 98.24. The PR Score ranks the Ottawa Marathon as the 23rd best marathon in Canada for running a Personal Record (PR) and the 11th best marathon for a PR in Ontario.
Together, these rankings provide a quick snapshot of how the Ottawa Marathon compares with other marathons in Canada and Ontario for speed, PR potential, Boston Marathon qualifying success, and overall participation.
Max Elevation: 264 feet (80m)
Min Elevation: 175 feet (53m)
Elevation Gain: 660 feet (201m)
Elevation Loss: 653 feet (199m)
View available accomodations around the Ottawa Marathon Finish Line and Course. Book your Reservation now before the best places are sold out.
For a better mobile or desktop experience:
Use tools below to compare races and convert times across courses.
Do you want to see how the Ottawa Marathon stacks up against other marathons?
Compare the details of the Ottawa Marathon side-by-side with other marathons with our Comparison Tool.
If you ran the Ottawa Marathon in 5:48:00, what would your time in other marathons be?
See how your finish time would compare on other marathon courses with our Time Conversion Tool.




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