6hr ultramarathons in Canada (Central) in 2026

4.3-mile repeated loop course with 420 feet of elevation gain per loop, building to a 100-mile, 9,700-foot ultramarathon challenge

Urban loop in central London with mild elevation changes, certified course, city scenery, and supportive atmosphere for ultra-distance performance

Flat, non-technical 3 km lap course through wooded trail, open meadow and vineyard at Sugarbush Vineyard, with timed formats up to 24 hours.

Backyard ultra format on a 6.7 km trail loop, alternating direction each round, with 150 m of climbing and technical mixed terrain.

50km challenge and 6-hour race on picturesque Batawa trails, featuring varied distances for runners and walkers of all levels