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.
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.
What is 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 route
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 |
|---|---|---|---|
| 2026 | Sunday, May 24, 2026 | Completed | Open results |
Tamarack Homes Ottawa International Marathon FAQ
When is the Tamarack Homes Ottawa International Marathon?
We're waiting for the finalized date for the 2027 Tamarack Homes Ottawa International Marathon. The most recent running was on Sunday, May 24, 2026.
How do I register for the Tamarack Homes Ottawa International Marathon?
You can register for the Tamarack Homes Ottawa International Marathon at runottawa.ca.