Trail Running Calendar Ontario 2025-2026

Kamview / Fresh Air Trail Run is a trail running event in Thunder Bay, Ontario, organized by Thunder Bay Nordic Trails and Fresh Air. The start/finish is in the Stadium area near the Kamview Nordic Centre, with access from the old parking lot about 500 meters past the chalet. Distances are not liste..

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..

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..

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 each member running an 8 km lap every hour for 24 hours. The event features a lively atmosphere with on-site camping, a..

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..

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..

Kamview / Fresh Air Trail Run is a trail-running fundraiser held in Thunder Bay, Ontario, Canada. Organized by Thunder Bay Nordic Trails and Fresh Air, the event supports the Reijo Puiras Legacy Fund. The day features a community-oriented trail course and a Kids Mini Fun Run that follows the main ev..

The Haliburton Forest Trail Race is an annual ultra running event held at the Haliburton Forest & Wild Life Reserve in Ontario, Canada. Celebrating its 32nd year in 2025, the race offers multiple distances including 12K, 26K, 50K, 50 miles, and the signature 100-mile ultra. The course features rugge..

Kamview / Fresh Air Trail Run is a trail running event held in Thunder Bay, Ontario, Canada, organized by Thunder Bay Nordic Trails and Fresh Air. The course starts and finishes in the Stadium area, with access from the old Kamview Nordic Centre parking lot, about 500 meters past the chalet. Partici..

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 an ultrarunning event held at Sugarbush Vineyards & Winery in Hillier, Ontario, Canada. Part of the OUTRace Series, it offers 6, 12, and 24-hour solo ultra-marathon options, as well as a 24-hour relay team race. A new 12-hour night run starting at 9 PM is also available.The..

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 Monster of Mazinaw Trail Race is an ultramarathon event held at Bon Echo Provincial Park in Cloyne, Ontario. It features challenging trail distances of 10k, 30k, and 43k, with the 43k race being Canada's shortest ultramarathon. The course offers a mix of wide groomed trails and technical, rocky..

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..

Trail and Ale 2025 is a charitable running and walking event held at Blackwell Trails/Howard Watson Trail in Sarnia, Ontario, Canada. Participants can choose between 5K and 10K distances for both live and virtual formats, with kids 14 and under able to join the 5K for free with a registered adult. T..

The Fort Henry 5km Cross Country Race, organized annually by the Kingston Road Runners Association (KRRA), is held at Fort Henry Hill, offering scenic views of Fort Henry, the Royal Military College, and Kingston city. The event features a 5K cross country race on a well-groomed 2.5 km loop with rol..

The Wolfpack Ultra Championship is a premier trail running event held in Hamilton, Ontario, Canada, on September 20, 2025. Featuring a challenging 50K ultra-distance race through the scenic and technical trails of Conservation Halton, the event tests endurance with rugged terrain, technical climbs,..

The Willibald Pasture Dash is a cross-country style running event held at Willibald Farm Distillery & Brewery in Ayr, Ontario, Canada. Participants race on a scenic 2.5km looped pasture course, choosing between 5km (two loops) or 10km (four loops) distances. The event offers a rustic, country atmosp..

Kamview / Fresh Air Trail Run is a trail running event in Thunder Bay, Ontario, Canada. Organized by Thunder Bay Nordic Trails and Fresh Air, it starts and finishes in the Stadium area near Kamview Nordic Centre, with access from the old parking lot 500 meters past the chalet. The evening trail run..