A classic forest 20K through Hamilton's Dundas Valley
Other trail races within 187 miles
A single loop of the iconic Dundas Valley 20K circuit with 520m of elevation gain on a mix of double-track and singletrack Carolinian forest trail. Run on Sunday morning alongside hundreds of other runners, with the energy of 100-milers finishing their final loops in the background.
Suitable for first-timers
Hamilton, ON, CanadaMay 30, 2027
Sulphur Springs Trail Race 20K is a loop trail race in Hamilton, ON, Canada, held on May 30, 2027. The course covers 20 km and climbs 520 m.
| Location | km | Elevation | Cutoff |
|---|---|---|---|
Start Start | 0.0 | 260 m | — |
Aid Station 1 Aid Station | 4.3 | 156 m | — |
Aid Station 2 Aid Station | 8.3 | 168 m | — |
Aid Station 3 Aid Station | 13.1 | 211 m | — |
Finish Finish | 19.9 | 260 m | — |
Aid station details for this race are still being filled in. Cutoffs and access rules come from the race’s own published information and can change — check the official race details before planning around them.
Sign in for race-day weather at every station, points of interest, segment-by-segment analysis, pacing, and to save this race to your calendar.
No overnight camping at the race site. Crew tents are allowed on the grassy area behind the main race tents at the start/finish area on a first-come, first-served basis (no electricity or running water). RVs/trailers not permitted. Hotels and motels available in Hamilton, Ancaster, and Burlington via Greater Hamilton Tourism.
No required gear specified
No recommended gear specified
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