Trail Running calendar near Byron 2026-2027

Backyard ultra at Eco Park in Arva ON on August 1 2026 with a 3.36 km loop repeated twice each hour, capped at 67 runners and affiliated with Big Dog's Backyard.

A 50 km team relay from North London to Broken Rail Brewery alternating roads and trails, with proceeds benefitting Ronald McDonald House Charities.

Annual family fitness challenge at Gibbons Park with adult, kids and K9 courses featuring obstacle counts and mandatory harness rules for dogs.

Trail races of 3.25 km and 8 km take place in Exeter on August 30, 2026 with proceeds supporting trail maintenance.

Tough Mudder Toronto at Gopher Dunes on September 12, 2026 features 5K and 15K obstacle courses, spectator passes, group packages and finisher rewards.

Spartan obstacle races at Gopher Dunes near Courtland ON on Sep 13, 2026 featuring a 5 km sprint with 20 obstacles and a 10 km super with 25 obstacles.

Trail race at Springwater Conservation Area near Aylmer offering 8 km, 16 km, 24 km and a required headlamp 8 km night race plus day and night combo options.

Community fundraiser at Graham Family Eco Park with a 5 km run and 2.5 km walk, offering in-person and virtual options to support people living with epilepsy.

A family-friendly event on October 3 2026 offering a 2 km walk or 5 km run to raise funds for Rural Response for Healthy Children.

Thanksgiving Monday runs at Springbank Park with 6.5 km, 2 km and a Kiddy Trot plus donations collected for the London Food Bank.

Trail races at Fanshawe Conservation Area offering 25k one loop and 50k two loops on a mixed surface reservoir trail. The event includes aid stations, timing chip, finisher medal and a planned burgundy unisex half zip.

Fundraising run and walk on October 18 2026 at Pinery Provincial Park offering multiple distances, chip timing, and support for park projects.

A 5K with 25 plus obstacles, large foam zones and festival features at Boler Mountain in London Ontario on July 25, 2026.