Trail Running Calendar Ontario 2026-2027
We have found 119 Trailruns in Ontario. Check below where and when you can find the races.
0 – 100∞ km
Articles
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Trail run in Thunder Bay on July 21, 2026 with on site cash entry, a family price cap, and a free kids mini fun run afterward.
Relay race in Toronto where pre-formed mixed gender teams of four run as many laps as possible in 45 minutes; top five teams advance to a final decided by fastest laps.
Trail marathon and half in Eugenia ON on August 8 and 9, 2026 over rocky rooty single track with substantial elevation and spaced aid stations.
A 50 km team relay from North London to Broken Rail Brewery alternating roads and trails, with proceeds benefitting Ronald McDonald House Charities.
Survival-style obstacle event at Boulevard Lake with categories for kids, adults and dogs, varied terrain and undisclosed obstacles.
Eight stage 80 km multi discipline running event in Ontario combining road, time trial, cross country, trail and track from August 9 to 16, 2026.
Trail running event in Thunder Bay with cash on site registration and evening bib pickup. Start and finish are in the stadium area near Kamview Nordic Centre and a free kids mini fun run follows the main event.
Evening 5 km trail runs in Ottawa from May to August with a small fee, postrace refreshments and a quilt draw for those in all four events.
Off-road triathlons and trail runs around Thunder Bay's mesas and boreal trails, offering 28 XTERRA World Championship qualification spots.
Trail event at Kivi Park in Sudbury offering 3 km, 5 km, 10 km, a half marathon and a kids run, raising funds for Miles Against Cancer Fund.
The Last Hour is the final Happy Hour Friday Night Series race, an 8 km trail run at Vanderwater Conservation Area featuring pine groves, boulder fields and riverside trails. No aid stations; parking fees apply.
A 24 hour team trail relay at Hardwood Ski and Bike where teams cover 192 km in hourly 8 km laps with camping, food service and evening activities.
The 5K Foam Fest in Ottawa on August 22, 2026 is a 5K course with 25 obstacles and 2.5 million cubic feet of foam at Wesley Clover Parks.
Obstacle race weekend at Calabogie Peaks near Ottawa offering Sprint, Super, kids races, Hurricane Heat formats, and hilly technical trail terrain.
A mud and obstacle run at Albion Hills with a 6 km course, finisher medal, live DJ and food trucks. An all day pass lets participants run multiple times and the event is open to ages 12 and up.
Annual family fitness challenge at Gibbons Park with adult, kids and K9 courses featuring obstacle counts and mandatory harness rules for dogs.