Ontario
Trail Running Calendar Ontario 2026-2027
Explore the best trail runs in Ontario for 2026-2027! Our updated list features 82 exciting trail runs across the region. Find your next trail run in Ontario below and join the trail community at these great events!
August 2027
Obstacle course weekend at Calabogie Peaks featuring Sprint, Super, kids races, and Hurricane Heat events on mountain and lakeside trails.
An 8 km trail run on August 20, 2027 at Vanderwater Conservation Area in Thomasburg, the final race of the Friday Night Happy Hour Series with paid parking and no aid stations.
Trail races at Calabogie Peaks on wooded singletrack with technical sections, climbs and lake views; options include a half marathon and 10K.
A 24 hour team trail running festival at Hardwood Ski and Bike where teams share 192 km via repeated 8 km laps and camp on site.
Shared obstacle adventure in Windsor on August 28, 2027 with Adults, Kids and K9 challenges at Malden Park, tickets via Eventbrite and no refunds.
A 5 km obstacle fun run on August 28, 2027 in the Greater Toronto Area with 25+ obstacles, foam, a kids zone and festival amenities.
XTERRA Sleeping Giant in Thunder Bay features off road triathlon, duathlon and trail races at Boulevard Lake and Kinsmen Park on Aug 28 and 29, 2027.
A three-hour, map-based urban adventure run in Hamilton for teams of two with smartphone app tracking and checkpoints across trails, roads and parks.
September 2027
A 200 mile trail ultramarathon near Sault Ste Marie over Canadian Shield terrain with aid stations, satellite tracking and shorter race options.
Weekend mud run at Gopher Dunes, Ontario with 15K and 5K options, kids events, finisher medal and festival-style spectator access.
Trail races of 7.5 km, 15 km and 22.75 km at Albion Hills Conservation Park with singletrack trails, riverside camping and family facilities.
Timed loop running at Sugarbush Vineyard in Hillier with 3 km loops, multiple duration options, tent camping, manual timing and a night 12 hour option.
Cross country races at Fort Henry Hill featuring a 5K and a Kids 1K with age category medals, team competition and finisher ribbons for children.
Trail races and hikes on private Woodnewton Farm trails near Slabtown Cider Co., with multiple distances, local food and cider after the event.
Trail race in Northern Ontario on 100% off-the-grid trails offering 12.5K, 25K, 50K and a 50K Relay with camping and a community atmosphere.
Trail point to point race on September 26 2027 using Dundas Valley trails with approximate 10 km and 5 km routes and map checkpoints.
Chip timed urban trail races in Hamilton with 21 km, 10 km, 5 km and kids runs through King’s Forest, the Bruce Trail and several waterfalls.
October 2027
Trail races in Thunder Bay offering 10 km, 25 km, 50 km and a 2.5 km kids run, chip timed with aid stations, medals and age-group awards.
Trail races at Heart Lake Conservation Park in Ontario, with distances from 3 km to 22.5 km, shaded routes, aid stations and limited parking.
Two days of Spartan obstacle racing at Blue Mountain with Sprint, Super, Beast and kids races across mountain terrain and over 30 km of course.