Sulphur Springs Trail Race
Hamilton, Canada • 24-25 May 2025
The Sulphur Springs Trail Race, held in the Dundas Valley Conservation Area in Hamilton, Ontario, is Canada’s oldest ultra marathon, running since 1992. The event features multiple distances including 10K, 20K, 50K, 50 miles, 100K, 100 miles, and 100-mile team relays, catering to all levels from casual runners to elite athletes. The course is a 20K loop combining groomed trails and challenging single track with rolling hills and steep climbs, set amidst the scenic Niagara Escarpment with natural springs and wildlife. The race is Athletics Ontario sanctioned and a Western States Endurance Run qualifier, promising a challenging and picturesque trail running experience. Visit the organization's website for the most recent information.