Trail Running Calendar Ontario 2025-2026

The Tally in the Valley Trail Race takes place in the scenic Dundas Valley Conservation Area in Hamilton, Ontario, Canada. This event features a 7km loop through a unique Carolinian forest with rolling hills and about 130m elevation gain per loop. Participants can choose from various distances and f..

The Persistence Backyard Ultra is an endurance running event held at Eco Park in Arva, Ontario, Canada. Participants run a 6.7056 km loop composed of two consecutive laps of a 3.36 km course featuring crushed stone trails, grass, and dirt roads. The race challenges runners to complete the loop every..

The Kamview / Fresh Air Trail Run will take place in Thunder Bay on Tuesday 5 August 2025.

The Middle Path Trail Race, held in Kawartha Lakes, offers a variety of distances including 26 km, 52 km, a 13 km team event, as well as 5 km and 2 km races over a weekend in August. Part of the Outrace Series and Athletics Ontario Trillium Running series, the event emphasizes accessibility for all..

The Falling Water Trail Marathon and Half Marathon take place in Eugenia, Ontario, Canada, along the scenic Beaver Valley section of the Bruce Trail. This challenging trail event features a full marathon (approximately 42 km) and a half marathon (approximately 21 km), both with significant elevation..

XTERRA Sleeping Giant is an off-road multisport event held in Thunder Bay, Ontario, at the head of Lake Superior. Set amidst the stunning Boreal forest and unique mesa rock formations, the event offers a variety of races including full, sprint, and super sprint off-road triathlons, a full-distance d..

The Kamview / Fresh Air Trail Run will take place in Thunder Bay on Tuesday 19 August 2025.

The Last Hour is an 8km trail run held at Vanderwater Conservation Area in Thomasburg, Ontario, as the final race in the Friday Night Happy Hour Series. The course features gently rolling terrain through beautiful pine groves, old boulder fields, and alongside the Moira River, with wide trails ideal..

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 Devil's Key is a challenging trail running event held at Devil's Glen Country Club in Duntroon, Ontario, Canada. Featuring three race distances—66.6 km (The Beast), 33.3 km (The Half Beast), and 15 km (The Mini Beast)—the course is known for its steep climbs and technical descents, including mul..

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..

Apex ONEWAY is a trail running event held at Moonlight Beach in Sudbury, Greater Sudbury, Ontario, Canada. The race features a unique point-to-point format where participants park at the finish line, take a shuttle bus to their start, and run back along scenic singletrack trails. Distances offered i..

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..

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

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.

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, 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 Pace Way mult..

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..