How many half marathons are there in Ottawa?

3 upcoming, and 7 more within 100km if you are willing to drive. The next one is The Maple Leaf March -- La Marche Maple Leaf on Sunday, October 11, 2026. Rebuilt from the race calendar daily.

When is the next half marathon in Ottawa?

The Maple Leaf March -- La Marche Maple Leaf, Sunday, October 11, 2026. Open it for the start time, distances and the official registration link.

No. Every listing links straight to the organizer's own registration page. RaceFinder never takes signups or a cut.

Half marathons in Ottawa

3 upcoming in Ottawa, and 7 more within 100km. Every one links to the organizer's official registration page.

5K races in Ottawa 10K races in Ottawa Marathons in Ottawa Half marathons across Ontario

Sunday, October 11, 2026
The Maple Leaf March -- La Marche Maple Leaf
ON · Walk · 65km / 42km / 21km / 10km · starts 7 a.m. · from $40
Saturday, October 17, 2026
9runrun - Ottawa
ON · Road · 21km / 10km / 5km / 2km · starts 8 a.m. · from $30
Saturday, May 29, 2027
Tamarack Ottawa Race Weekend
ON · Road · 42.2km / 21.1km / 10km / 5km

More half marathons near Ottawa

Everything within 100km, sorted by how far you would have to drive.

New races in Ottawa, once a month

Newly listed races, and the registrations closing in the next three weeks. One email a month, one click to leave.

Half marathons in Ottawa — FAQ

How many half marathons are there in Ottawa?: 3 upcoming, and 7 more within 100km if you are willing to drive. The next one is The Maple Leaf March -- La Marche Maple Leaf on Sunday, October 11, 2026. Rebuilt from the race calendar daily.
When is the next half marathon in Ottawa?: The Maple Leaf March -- La Marche Maple Leaf, Sunday, October 11, 2026. Open it for the start time, distances and the official registration link.
Do I register here?: No. Every listing links straight to the organizer's own registration page. RaceFinder never takes signups or a cut.

Missing a race? Add it. Or browse every race in Ottawa and half marathons across Canada.