Trail Running Calendar Ontario 2025-2026

Timber24 Relay is a 24-hour trail running festival held at Hardwood Ski and Bike in Oro Medonte, near Barrie, Ontario. Teams of 4 (ultra) or 8 runners collectively cover 192 km by running 8 km laps each hour over 24 hours. The event features a lively atmosphere with on-site camping, a retail and exp..

Lines and Loops at Harold Town Conservation Area is a trail running event held near Peterborough, Ontario, celebrating 31 years of conservation and the land donation by artist Harold Town. Participants can choose from multiple distances: a 6K lap, an 18K (3 laps), or a challenging 30K (5 laps), with..

The Calabogie Peaks Trail Run, held in Calabogie, Ontario, features 10K and half marathon distances on August 24, 2025. Set at Calabogie Peaks, Ottawa's tallest public ski resort, the race offers a challenging course of wooded singletrack mountain trails with technical sections and significant climb..

The Kamview / Fresh Air Trail Run will take place in Thunder Bay on Tuesday 26 August 2025.

The Haliburton Forest Trail Race, held annually since 1993, takes place in the scenic Haliburton Forest & Wild Life Reserve in Ontario, Canada. The 2025 event offers multiple distances including 12K, 26K, 50K, 50 miles, and the signature 100-mile ultra run. The course features rugged, heavily forest..

Apex ONEWAY is a trail running event held at Moonlight Beach in Sudbury, Greater Sudbury, Ontario, Canada. Scheduled for September 7, 2025, it features a unique point-to-point format where participants park at the finish line, take a bus to their start, and run back along scenic singletrack trails...

The Kamview / Fresh Air Trail Run will take place in Thunder Bay on Tuesday 9 September 2025.

Sugarbush Shenanigans is a unique ultrarunning event held at Sugarbush Vineyards & Winery in Hillier, Ontario. Participants can choose to run solo for 6, 12, or 24 hours, or join a relay team for the 24-hour race. The course features a flat, non-technical loop of approximately 3 kilometers, winding..

The North Bay Road Race, held in North Bay, Ontario, offers premier running events with distances of 5k, 10k, and a half marathon (21.1 km), plus a 1-mile Kid’s Race. The courses are flat and fast, featuring scenic routes along Memorial Drive and the Lake Nipissing waterfront, including the Kate Pac..

The Tobermory Trail Race will take place in Tobermory from Saturday 13 September 2025 to Sunday 14 September 2025. You can run between 5 and 42 kilometers.

The Kincardine 7K Trail Challenge is an annual running event that invites participants of all ages to enjoy a scenic race starting and finishing at Station Beach. Scheduled for September 20, 2025, this event encourages both runners and walkers to take part. Prizes will be awarded to children under 1..

The Wolfpack Ultra Championship is a premier trail running event held in Hamilton, Ontario, Canada, set for September 20, 2025. It features a challenging 50K ultra-distance race through the scenic and technical trails of Conservation Halton, showcasing rugged terrain, technical climbs, and breathtak..

The Fort Henry 5km Cross Country Race, organized annually by the Kingston Road Runners Association (KRRA), takes place at Fort Henry Hill in Kingston. This well-established event features a 5km cross country race on a closed, well-groomed 2.5km loop course with small rolling hills mostly covered in..

The Monster of Mazinaw Trail Race is an ultramarathon event held at Bon Echo Provincial Park in Ontario, Canada. It features three distances: 10k, 30k, and Canada's shortest ultramarathon at 43 km. The course offers a challenging mix of terrain, including wide groomed trails and technical, rocky sin..

Trail and Ale 2025 is a running and walking event held at Blackwell Trails/Howard Watson Trail in Sarnia, Ontario, Canada. Participants can choose between 5K and 10K distances, with routes starting from Michigan Avenue and winding through scenic trails. The event offers both live and virtual partici..

The Willibald Pasture Dash is a cross-country style running event held at Willibald Farm Distillery & Brewery in Ayr, Ontario, Canada. Participants can choose between a 5km or 10km race, running loops of a scenic 2.5km pasture course. Now in its fourth year, the event offers a unique rural atmospher..

The Kamview / Fresh Air Trail Run will take place in Thunder Bay on Tuesday 23 September 2025.

The Howling Ghost Trail Race is an annual trail running event held at the Springwater Conservation Area in Aylmer, Ontario, about 40 minutes from London. Scheduled for September 27, 2025, the race offers multiple distances: 8k, 16k, and 24k loops through the scenic Carolinian forest. A new Night How..

Run Off-the-Grid is a rugged trail running event held in Mattawan, Ontario, set amidst the vibrant autumn colors of Northern Ontario. The race features a challenging 12.5 km loop through diverse terrain including single tracks, old logging roads, hills, technical rocky sections, creek crossings, a m..

The Pace for the Donkeys 5k Trail Run is a charitable running event held at the Donkey Sanctuary of Canada in Puslinch, Ontario. Participants can choose between a 5K trail run or a more relaxed 1K route, both set through scenic fields and trails on the sanctuary grounds. The event welcomes runners a..