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Trail Running Calendar Ontario 2025-2026

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Explore the best trail runs in Ontario for 2025-2026! Our updated list features 50 exciting races across the region. Find your next race in Ontario below and join the running community at these great events!

September 2026
Sep
19
Sa

Monster of Mazinaw Trail Race

Trail Run 11 km 30 km 43 km
Sep
25-27
Fr - Su

Blue Bully Ultra

Trail Run 4 km 5 km 25 km 50 km
October 2026
Oct
3
Sa

5 Peaks - Heart Lake

Trail Run 3 km 8 km 15 km 23 km
Oct
4
Su

Run the Caves

Trail Run 5 km 10 km ... 25 km 50 km
Oct
10
Sa

Sticks N' Stones Trail Race

Trail Run 5 km 10 km 27 km 53 km
Oct
17
Sa

Phoenix Trail Races

Trail Run 25 km 50 km
Oct
17
Sa

Long Sault Trail Race & Ultra

Trail Run 7 km 14 km Half Marathon 6 hr
Oct
17
Sa

Creemore Vertical Challenge

Trail Run 14 km 28 km 55 km 50 mi
Oct
24
Sa

The Lost Valley Trail Race

Trail Run 10 km 25 km
Oct
31
Sa

The Beav Trail Race

Trail Run 10 km 25 km 50 km