Sulphur Springs Trail Race

Name: Sulphur Springs Trail Race
Start: 2026-05-23
End: 2026-05-24
Location: Hamilton

MAY

23-24

2026

Experience historic trails in Dundas Valley at the Sulphur Springs Trail Race on May 23 and 24, 2026, with a challenging 20K loop of rolling hills and steep climbs. Distances range from 10K to 100 miles, plus team relays, and the event is a Western States qualifier.

23-24 May 2026

Hamilton, Ontario

Website

100 miles 100 kilometers 50 miles 50 kilometers 20 kilometers 10 kilometers

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Sulphur Springs Trail Race 2026

The event takes place Saturday, May 23 and Sunday, May 24 in the Dundas Valley Conservation Area in the City of Hamilton, Ontario. Registration opens October 15 at 9 am E.S.T. The race is presented by the Burlington Runners Club, is Athletics Ontario sanctioned, and is a Western States Endurance Run qualifying event. The trail system has hosted this Burlington Runners Club event since 1992; organizers describe it as the oldest running ultramarathon in Canada.

Course and distances

The course uses a 20K loop that includes groomed trail and single-track sections. Each loop includes rolling hills plus steep climbs and descents and provides over 500 m of elevation gain. A crew tent area is available at each loop for regrouping and refueling. Visit the organization's website for the most recent information.