Tamarack Ottawa Race Weekend
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Tamarack Ottawa Race Weekend in Ottawa, Ontario, Canada
Tamarack Ottawa Race Weekend takes place on May 23 and 24, 2026 in Ottawa, Ontario, Canada. The event brings together multiple road races and related services for runners and walkers.
Distances offered include:
- 42.2K Tamarack Homes Ottawa International Marathon
- 21.1K Ottawa Half Marathon presented by Desjardins
- 10K Ottawa 10K presented by Otto’s Ottawa
- 5K Ottawa 5K
- 2K Ottawa 2K
- Kids Ottawa Kids Marathon
The weekend also features combined challenges called the Ottawa 59.2 km Challenge, the Ottawa 36.1 km Challenge and the Ottawa 17 km Challenge. Support and event services include an Adaptive Athlete Program, information for elite athletes, a pace team, medical services and safety provisions. Live results and runner tracking are available, and the event offers an Expo plus related experience elements such as an official app, training app integration and Festival Plaza with a Beyond the Pale Beer Garden.
A charity component is organized under the Desjardins Charity Challenge. Additional resources are provided for volunteers, media and fundraisers, and the organiser publishes race results and photos from past events. Visit the organization's website for the most recent information.
