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Tamarack Ottawa Race Weekend
Saturday, May 23, 2026 · Ottawa, Canada
Distances
5K
10K
Half
Full
Start location
Ottawa
About this race
This annual two-day running event takes place in downtown Ottawa, becoming one of Canada's largest racing weekends. It is recognized as Ottawa's largest running event of the year, attracting a large community of runners.
The course is known for being flat and fast, offering a prime opportunity for personal bests. The weekend includes seven races, such as an Ottawa Kids Marathon, making it accessible for families. This event draws close to 47,000 participants, creating a lively atmosphere for both new and experienced runners.