Trail Running Calendar Ontario 2025-2026

Trail and Ale 2025 is a fundraising running and walking event held along the Blackwell Trails and Howard Watson Trail in Sarnia, Ontario, at Trail Entrance, 1285 Michigan Ave. The live event offers 5K and 10K trail routes and a 5K walk, with routes starting on the Howard Watson Trail and weaving int..

Monster of Mazinaw Trail Race 2025 unfolds at Bon Echo Provincial Park, Ontario (Cloyne). The event features three trail distances: 10k, 30k, and 43k—the last billed as Canada’s shortest ultramarathon, but the rugged course feels longer. The route blends wide groomed trails with technical rocky sing..

Fort Henry 5KXC Cross Country Race, staged by the Kingston Road Runners Association, takes place on Fort Henry Hill in Kingston. The event features a 5-kilometer cross-country course run on a 2.5-km loop of grassy, rolling terrain, with two laps to complete the distance. A Kids 1KXC race precedes it..

The Wolfpack Ultra Championship takes place in Hamilton, Ontario, showcasing Conservation Halton’s rugged backcountry. The event centers on two 50K formats: a solo 50K Ultra and a 50K Team Relay (five runners of 10K each). Runners navigate technical climbs, winding forest trails and open ridges, wit..

Willibald Pasture Dash is a cross-country–style running event held at Willibald Farm Distillery & Brewery on Reidsville Road in Ayr, Ontario. The race offers a 5 km option (two 2.5 km loops) and a 10 km option (four loops) on a pasture course described as a dash through the pasture. Participants enj..

The Rare Trail Party will take place in Cambridge on Sunday 21 September 2025.

Kamview / Fresh Air Trail Run is a trail running event in Thunder Bay, Ontario, with the start/finish in the Stadium area near Kamview Nordic Centre. Organized by Thunder Bay Nordic Trails and Fresh Air, the event offers on-site registration (cash) for participants, with a family cap. A Kids Mini Fu..

Run4Kids is a family-friendly charity running/walking event held in Exeter, Ontario at the Morrison Dam Conservation Area along the MacNaughton-Morrison Trail. On Saturday, September 27, 2025, participants can choose between a 2-km walk or a 5-km run, suitable for both casual walkers and seasoned ru..

Harvest Hustle in Guelph, Ontario is a family-friendly farm event held at Strom’s Farm and Bakery (5089 Wellington Rd 32). It offers two distances: a 5K Trail Fun Run/Walk through cedar spirals, fields, and sections of a corn maze, plus a 1/2 Mile Corn Maze Walk. The course emphasizes farm terrain a..

ELEVATE, Blue Mountain - Trail Elevation Challenge, is a City Shred event held at Blue Mountain South Base Lodge, 138 Gord Canning Dr, The Blue Mountains, Ontario. It offers adult distances of 5K, 10K, and MAX Elevation (3-hour limit), plus a new 20K relay (team of four, each running a 5K loop). Kid..

The Howling Ghost Trail Race takes place at Springwater Conservation Area in Aylmer, Ontario (about 40 minutes from London). The third edition offers day races of 8k, 16k, or 24k, run on wide, groomed trails through a scenic Carolinian forest, with 1–3 loops of the 8k course. A new Structural Panels..

Run Off-the-Grid is a rugged off-grid trail race in remote Northern Ontario, held at 574 Snake Creek Road, Mattawan. The event offers a 12.5 km loop (with a hike option) and 25 km or 50 km distances—the 50K is four loops, each in the opposite direction. The course is 100% trail, featuring single-tra..

Pace for the Donkeys is a 5k trail run held at the Donkey Sanctuary of Canada in Puslinch, Ontario. The event features a 5-kilometre trail route and a new 1-kilometre option, welcoming runners and walkers of all ages and abilities to enjoy scenic fields and trails through the sanctuary. It serves as..

Seize the Day, London is an annual fundraising event organized by Epilepsy Southwestern Ontario held at Graham Family Eco Park on Medway Road in Arva, Ontario, near London. The in-person options include a 5K run and a 2.5K walk on a scenic park trail, with 5K runners completing four laps and walkers..

Albion Ascent Trail Race in Hamilton, Ontario offers a transit-friendly, chip-timed urban trail experience through rivers, forests and waterfalls. Distances are 5K, 10K and 21K, with routes from King’s Forest paved paths to rugged Bruce Trail sections. The 21K features a persistent climb and technic..

The Blue Bully Ultra is Ontario's only three-day stage trail running race held at Blue Mountain Resort, featuring a weekend festival of running and fun from October 3-5, 2025. The event offers three race styles: The Stampede, a fast 5km with 400m elevation; The Drive, a challenging 50km or 25km cros..

Manotick Backyard Ultra is an endurance running event held in Manotick, Ontario, starting from 692 Coffee and Bar at 5546 Manotick Main Street. The Backyard Ultra format emphasizes grit over speed, with loops through the town that blend road and trail, including bridges over streams and park section..

UpRiver Running Fall Races takes place in Thunder Bay, Ontario, with start and finish at Kinsmen Park on Trowbridge Road. The event offers 50K, 25K, 10K, and a 2.5K Kids Trail Run. Runners traverse mostly single-track trails through Shuniah Mines, Cascades Conservation Area, Centennial Park, and sur..

2025 5 Peaks Trail Running Series: Heart Lake is held at Heart Lake Conservation Area, Heart Lake Road, Brampton, Ontario. The fifth event in the Ontario edition takes place on Saturday, October 4, 2025. It offers multiple trail distances, with options adjustable via a Change Distance feature; check..

The Ramblers Run is a fitness-forward, family-friendly event among the vines at Palatine Hills Estate Winery in Niagara-on-the-Lake, Ontario. Participants can choose a 1.25 km family walk/run, a 5 km race, or a 1.25 km dog walk, with grass and dirt paths and some uneven terrain suitable for walkers,..