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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.

Canada Ontario Hamilton

Race information

Website
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
Visit the organization's website for the most recent information.
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