Ottawa Marathon
Race Day Weather
Comfortable temps, big temp swing
Mild 59°F temps at gun time mean comfortable early miles without overheating risk. Temps will climb significantly to 75°F by later miles, so expect fading conditions as the race progresses. Light winds shouldn't be a major factor for pacing.
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Race Info
The Ottawa Marathon is held in late May in downtown Ottawa, Ontario, as part of Ottawa Race Weekend. The course starts at City Hall, heads west along Wellington Street, crosses the Chaudiere Bridge into Gatineau, Quebec, and returns over the Alexandra Bridge before following Colonel By Drive to the finish on Queen Elizabeth Drive. It is a World Athletics Elite Label race and a Boston Marathon qualifier, run alongside a half marathon, 10K, 5K and shorter events.