Canada · Road half marathon · 21.0975 km
Ottawa Half Marathon
Ottawa, Ontario, Canada
Ottawa’s half marathon brings city landmarks and lively neighbourhoods into a relatively flat 21.1 km course. It is one of the capital’s main race-weekend draws. Check availability early and select the half marathon when comparing results across the festival’s distances.
AthRecs race guide · Updated
Upcoming dates
Planning your race weekend? These are the announced dates through 2027. Follow the organiser’s link for the latest date and race-day details. All dates and start times are local.
At a glance
- City / location
- Ottawa
- Province
- Ontario
- Distance
- 21.0975 kilometres / 13.1 miles
- Surface
- Road / surfaced paths
- Course profile
- Relatively flat
- Approximate field
- Unknown
How to enter Ottawa Half Marathon
These are the organiser’s entry routes. Check the linked page for the edition, opening dates, eligibility, fees and current availability.
Direct entry
Choose the half marathon on the organiser’s registration page. Check the edition and current availability before entering.
Official entry informationRoute and course
The organiser describes a fast, relatively flat road course through Ottawa’s neighbourhoods and past historic landmarks. The interactive map separates the weekend’s different races.
Past races and results
Official results archiveOpen the organiser’s results to find a runner, club or published category standing. At festivals with several distances, select the half marathon results.
Use the official archive above to find earlier editions and category results.
Race news, photos and video
Visit the organiser for race updatesCommon questions
When is Ottawa Half Marathon?
Confirmed upcoming dates: 30 May 2027. Dates are local to the race.
How do I enter Ottawa Half Marathon?
Direct entry: Choose the half marathon on the organiser’s registration page. Check the edition and current availability before entering.
Where is Ottawa Half Marathon and how far is it?
Ottawa Half Marathon takes place in Ottawa, Ontario, Canada. This guide covers the 21.0975 km half marathon (13.1 miles). Surface: Road / surfaced paths
What is the Ottawa Half Marathon course like?
The organiser describes a fast, relatively flat road course through Ottawa’s neighbourhoods and past historic landmarks. The interactive map separates the weekend’s different races. Relatively flat
How big is the field at Ottawa Half Marathon?
The approximate field is Unknown. A reliable runner estimate is not currently available in this guide.
Where can I find past Ottawa Half Marathon results?
The past races and results section links to the organiser’s results. Select the distance and edition for participant searches and published category standings.
Sources and race information
AthRecs is independent of the race organiser. This guide brings together the linked race information, results and reports. Source review: . Historical details are labelled by edition; current entry availability and final instructions remain with the organiser.
More half marathons in Canada
Compare the route and scale of another race. Options in the same region appear first when available.
- Toronto Waterfront Half Marathon
Toronto, Ontario
City road course
Next date: 18 Oct 2026
Approximate field: Unknown
- BMO Vancouver Half Marathon
Vancouver, British Columbia
Point to point
Next date: 2 May 2027
Approximate field: Unknown
- Royal Victoria Half Marathon
Victoria, British Columbia
Relatively flat
Next date: TBC
Approximate field: Unknown