Canada
The Sulphur Springs Trail Race, taking place in May, is a renowned running event hosted by the Burlington Runners Club, featuring a variety of distances including 10K, 20K, 50K, 50 miles, 100K, and 100 miles, along with team relays. Set in the picturesque Dundas Valley Conservation Area, the race offers a 20K loop course that combines groomed trails with challenging single tracks, providing a unique experience for runners of all skill levels. Celebrated as the oldest ultra marathon in Canada, this Athletics Ontario sanctioned event also serves as a qualifying race for the Western States Endurance Run. Visit the organization's website for the most recent information.
Always double-check with the organizer's website – things can change, and we might have sprinted past a few details!
100 mi
100 Mile Team Relays
100 mi
100 Miles
100 km
100k
50 mi
50 Miles
50 km
50k
20 km
20k
10 km
10k
