Trail Running Calendar Ontario 2026-2027

Trail running event in Thunder Bay on June 9, 2026 with cash entry fees of $10 per person or $30 per family. Number pickup is onsite in the evening and a free Kids Mini Fun Run follows the main event.

A four date trail series in Ottawa offering an adult 5 km race each date with marked kilometres, marshals and one water station. The series is sanctioned by Athletics Ontario.

A multi day trail event on the Bruce Trail featuring 200 mile, 100 mile, a 72.5 km E2E and a Redemption 100 km option, with fully stocked aid stations, sleep stations and technical singletrack terrain.

A six date summer series of flagged trail runs, hikes and walks in The Blue Mountains with season and single event options, social meetups, Strava challenges and fundraising for local trail organizations.

A looped trail event at Batawa Ski Hill offering 2, 4 and 6 hour options on a roughly 7 km course. Marked trails, an aid station mid-loop, and a cup less setup with hydration refills.

Trail running on a 7 km loop around Duchesnay Falls with 7 km, 14 km, half marathon and a roughly 2 km kids course. Aid stations, bag drop, medals for finishers and a cup-free waste policy.

Trail event at Earl Rowe Provincial Park offering loop distances from 6K to 62K, cup-free aid stations, drop bags and finisher swag; proceeds support Procyon Wildlife.

Cannonball Crush is a 5K obstacle race at Fort Henry with over 20 modern and historically themed obstacles. Open to ages 13 and up, it offers solo and team categories with team awards based on the top four times.

A track ultra at Russell High School on June 13, 2026 featuring two six hour sessions and a Sunrise to Sunset option with official lap counting, aid stations, crew spaces and awards including a custom buckle for 100 mile finishers.

Trail 5 km and 10 km races in Ottawa with official timing, awards and snacks. A portion of registration proceeds supports OrKidstra to help children access music programs.

A commemorative run in Niagara-on-the-Lake honoring General Józef Haller and the Blue Army, with a 1 km kids race, 5 km family and run/walk events, and a 10 km open race. The out and back course follows the Niagara Parkway Recreational Trai..

A checkpoint format trail race of 10 to 15 km in Toronto on June 13, part of a series across Canada. Runners choose checkpoint order and pace, with an after race morning party featuring coffee, food, DJs and prizes.

Trail running event in Roseneath on June 14 2026 offering four route choices from a timed 3 km loop to a 24.6 km combined route. The event is self supported with aid available at the start area.

Two trail-and-road runs in Uxbridge : 10 km and 5 km : starting and finishing at Elgin Park. A fundraiser for the new Uxbridge Hospital, with online registration open Feb 1 to June 10, 2026.

Trail running event at Trail Hub in Uxbridge offering multiple distances from 50 km down to a 1 km kids run. The event features marked trails, aid stations and environmental giving with a cup free policy.

A 15 hours 23 minutes trail event on June 20, 2026 at Marydale Park offering an individual timed option and a relay for teams up to five. The course uses an approx 3.7 km loop on mixed trails with one aid station per loop.

Runners start together in London, Ontario and pick their own routes to get as far as possible from the start within set time limits. The race includes 8 hour, 4 hour and 2 hour categories and uses live tracking for verification.

Trail running event in Thunder Bay, ON organized by Thunder Bay Nordic Trails and Fresh Air. Registration closes June 23, 2026, with cash payment and bib pick up on site. A free kids Mini Fun Run follows the main event.

Utopia Backyard Ultra at the Tiffin Centre on June 27-28 2026 is a loop every hour event that continues until one finisher remains. Several fixed duration options are offered and start area camping is included for entries.

An endurance trail event at Kamview Nordic Centre in Thunder Bay on June 27, 2026 offering solo 24 hour, 12 hour, 6 hour, relay and Youth 4 hour options. Chip timed with aid station services, onsite amenities and distance based medals.