Trail Running Calendar Ontario 2026-2027

A 5 km trail race at Sheila McKee Park on July 29 2026 with a 2 km kids run, chip timing, a medal or Green Bib option, and proceeds supporting Camp Misquah.

A backyard ultra at Eco Park in Arva, ON on August 1, 2026 where runners repeat a 6.7056 km hourly loop until one is last standing. Field limited to 67 and the winner receives a Silver Ticket for the World Team Championship.

Open-water swims, a swimrun and trail runs at the Welland Community Boathouse on August 2, 2026, with swims from 2K to 10K, an about 11 km swimrun and 5K and 10K trail options.

Trail event in Petawawa on August 2, 2026 offering a 2.6 km kids race, 5 km and 10 km runs, and 3×5 km relays. Registration includes a meal, event shirt, and swag; fees vary by category.

An in-person timed run in Ottawa offering 5K and 10K distances with awards and snacks. Part of registration supports OrKidstra to help children access instruments and after-school programs.

A trail running event in Thunder Bay with cash on site registration and race number pickup, a 10 dollar per person fee and a free Mini Fun Run for children afterward.

Trail marathon and half marathon on the Beaver Valley section of the Bruce Trail with rocky technical terrain, waterfalls and marked blazes. Each distance is limited to 100 runners and the marathon has an 11 hour cut off.

An in-person survival-style challenge at Boulevard Lake with courses for kids, adults and dogs. Distances range from 1 km to 5 km and obstacles are not disclosed in advance.

A two day trail event at Stokely Creek Lodge featuring a 1 km hill climb, 5 km and 25 km trail races, plus family activities such as a kids race, scavenger hunt, lodge dinner and a nighttime summit hike.

Eight days and eight stages totaling 80 km around Conestogo, Waterloo and Cambridge from August 9 to 16, 2026. The event mixes road, cross country, trail and track with on course support, a technical shirt and a finisher medal.

Trail races at Forest Lea Trails on August 9, 2026, with 10 km and 27 km on rugged singletrack, plus a free 3 km youth race for ages 15 and under.

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.

Join a community focused trail race at Kawartha Nordic featuring distances from 2km to 52km. Experience a professionally sanctioned event that prioritizes environmental sustainability and athletic accessibility.

Off-road triathlon, duathlon and trail runs take place in Thunder Bay on August 15 and 16 2026 using Boulevard Lake and Kinsmen Park, with mountain bike only courses and XTERRA World Championship qualification slots.

Community driven trail running at Kivi Park on August 16, 2026, offering distances from a kids run to a half marathon. Fundraising supports the 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 trail event on the Bruce Trail at Devil's Glen Country Club offering 66.6 km, 33.3 km and 16.66 km routes with major climbs, frequent aid stations, GPX files, and a unique skeleton key kept during the race.

A 24-hour team trail relay near Barrie, Ontario: teams of 1 to 8 cover 192 km in hourly 8 km laps, with on-site camping, 24-hour food service, physio support, retail and evening events.

The 5K Foam Fest in Ottawa on Saturday Aug. 22, 2026 is a 5 km obstacle course with 25 obstacles and 2.5 million cubic feet of foam at Wesley Clover Parks. The event lists a finishers medal, kids zone, live DJ and food vendors.

Obstacle course weekend at Calabogie Peaks on August 22 and 23, 2026 featuring Sprint, Super, kids races and Hurricane Heat formats. Courses include steep climbs, singletrack and multiple obstacles.