Tamarack Homes Ottawa International Marathon
Ottawa's international marathon anchors Tamarack Ottawa Race Weekend with a sold-out urban course, World Athletics label status, and Boston value.
Marathon Scout prioritizes official race websites, registration pages, timing providers, results pages, and race-linked live tracking. Last updated July 7, 2026.
Tamarack Homes Ottawa International Marathon quick facts
- World Athletics label road race and Boston-qualifying marathon.
- The 2026 marathon is marked sold out.
- Official result link is available through Run Ottawa.
About the Tamarack Homes Ottawa International Marathon
Ottawa is one of Canada's highest-profile spring marathon weekends, with elite relevance, a Boston-qualifying course, and heavy runner demand.
Tamarack Homes Ottawa International Marathon course description
The course starts near Ottawa City Hall and moves through the capital's road network with river, city, and crowd-support sections.
Weather for the Tamarack Homes Ottawa International Marathon
Late May can be ideal but is not guaranteed. Runners should be ready for cool starts, sun exposure, and wind near river corridors.
Past Tamarack Homes Ottawa International Marathon dates and results
| Year | Date | Status | Results |
|---|---|---|---|
| 2027 | Sunday, May 30, 2027 | — | — |
| 2026 | Sunday, May 24, 2026 | Completed | Open results |
Tamarack Homes Ottawa International Marathon FAQ
When is the Tamarack Homes Ottawa International Marathon?
The 2027 Tamarack Homes Ottawa International Marathon is on Sunday, May 30, 2027.
How do I register for the Tamarack Homes Ottawa International Marathon?
You can register for the Tamarack Homes Ottawa International Marathon at runottawa.ca.
Can I use the Tamarack Homes Ottawa International Marathon for Boston qualifying?
Marathon Scout marks the Tamarack Homes Ottawa International Marathon as a Boston qualifier. Check the current Boston qualifying times and confirm current certification with the race before registering.
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