Trail Running Calendar Ontario 2026-2027

Six day stage event totaling 60 km in the Waterloo region from July 13 to 18 2026. The program mixes road, time trial, cross country, technical trail, track racing and a half marathon.

A four date trail series in Ottawa in 2026 with a 5 km race per date, a marked course with marshals and one water station, plus light refreshments after the event.

The Horseshoe Valley Run Club will take place in Horseshoe Valley from Tuesday 14 July 2026 to Tuesday 8 September 2026.

A 5K obstacle and foam event on July 18, 2026 at Wasaga Beach Provincial Park featuring 25 plus obstacles, about 2.5 million cubic feet of foam, a free kids zone, live DJ, food vendors and a licensed beer garden.

Trail races at Area 8 Conservation Area on July 18, held on trails around a former limestone quarry, with distances from 1 km for kids to 24.2 km and course maps and aid stations provided.

An 8 km night trail run at Two Creeks Conservation Area on July 18, 2026, combining singletrack, roots and a horror-themed atmosphere. Presented by The RUNEGADE Podcast, with a portion of proceeds supporting local trails.

A trail running and mountain bike event at Lake Laurentian Conservation Area on July 19, 2026. Multiple adult and youth distances are offered along with a Run + Bike Combo.

RUN - The Salty Marie Trails Fest 2026 is organized by Red Pine Tours and uses Zone4 for registration. Registration closes on Jul 19 and an optional QuickList can save participant details for future entries.

Trail running event in Thunder Bay organized by Thunder Bay Nordic Trails and Fresh Air with cash payment and on site number pickup. Entry is 10 dollars per person or up to 30 dollars per family; a free kids mini fun run follows.

An informal 6 km trail run on Sugarbush Vineyards' private trails as part of the Friday Night Happy Hour series, with cupless policy, water at start/finish, manual timing and on-site registration options.

Mud Hero Ottawa is a 6 km mud and obstacle course event on July 25, 2026 at Commando Paintball. It offers an all day pass, a finisher medal, DJ music, food trucks and a beer garden for 19 plus.

A 5K run at Boler Mountain on July 25 2026 featuring more than 25 obstacles and 2.5 million cubic feet of foam. Festival offerings include a free kids zone live DJ food vendors and a licensed beer garden.

Trail race at Dundas Valley Conservation Area with a 7 km loop and options from a single loop to 100 miles plus 6 12 and 24 hour timed events. Aid station, cup free policy, medals and a 100 mile belt buckle.

A volunteer-run trail event at Hersey Lake Conservation Area offering a half marathon plus 10 km and 5 km options. Proceeds support Timmins' running community and registration carries a small online processing fee.

A 5 km trail race plus a 2 km kids run at Sheila McKee Park on July 29, 2026, featuring chip timing, commemorative medals or a Green Bib donation option, with proceeds supporting Camp Misquah.

An official Backyard Ultra affiliated race in London Ontario starting August 1 2026. The event emphasizes persistence and hosts participants who may complete anywhere from a single loop to many dozens.

Open-water swims, a swimrun and trail runs at the Welland Community Boathouse on August 2, 2026, with swims from 2K to 10K, an about 11 km swimrun and 5K and 10K trail options.

Trail event in Petawawa on August 2, 2026 offering a 2.6 km kids race, 5 km and 10 km runs, and 3×5 km relays. Registration includes a meal, event shirt, and swag; fees vary by category.

An in-person timed run in Ottawa offering 5K and 10K distances with awards and snacks. Part of registration supports OrKidstra to help children access instruments and after-school programs.

A trail running event in Thunder Bay with cash on site registration and race number pickup, a 10 dollar per person fee and a free Mini Fun Run for children afterward.