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Marathon calendar near Ottawa 2025-2026

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Explore the top marathons near Ottawa for 2025-2026! We've gathered 2 exciting races in the area. Check out our detailed list below to find your next local race.

May 2025
May
24-25
Sa - Su

Tamarack Ottawa Race Weekend

5 km 10 km 21 km 42 km
October 2025
Oct
12
Sunday

Fall Colours Run

3 km 5 km ... 21 km 42 km
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