Sehgahunda Trail Marathon

MAY
16-17
2026
A technical trail event at Letchworth State Park featuring a 26.3 mile marathon, relay teams, a 72 km combined option, and a weekend of 5K, 10K, and 15K races, with marked trails, multiple aid stations, and finisher medals.
16-17 May 2026
72 kilometers 26 miles 9 miles 6 miles 3 miles

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Sehgahunda Trail Marathon & Relay

Sehgahunda Trail Marathon & Relay is a trail running event held at Letchworth State Park, with the course beginning at the Mount Morris Dam Visitor Center and finishing at the Parade Grounds in Portageville. The main event is a technical trail ultramarathon of just over the traditional marathon distance, run primarily on the Finger Lakes Trail.

The route features rocky and root-strewn terrain with many gullies and mostly hilly running. Elevation gain on the course is listed between 3,000 and 4,000 feet. The course uses yellow blazes on the main trail and blue blazes on spur trails; turns to and from aid station trails are marked with arrows and small flags. Aid stations are prepackaged food and water only, with seven to eight checkpoints on the marathon course. Both days of the race weekend use cup free aid stations. Marathon participants are required to carry hydration on course.

Distances and formats

  • 26.3 miles Sehgahunda Trail Marathon (solo)
  • Relay options for 2 or 4 person teams, legs of 6.1, 9.3, 6.5, 4.4 miles
  • Vale of Three Falls weekend races: 5K, 10K, 15K
  • Sehgahunda 72 combines the marathon and all three Vale races for 72 kilometers

All races include event shirts and finisher medals; Day 1 marathon finishers receive a handmade arrowhead medal. The Sehgahunda 72 entry includes a special finisher plaque. Visit the organization's website for the most recent information.

72 km
Sehgahunda 72
26 mi
2 Person Relay Team
26 mi
4 Person Relay Team
26 mi
Trail Marathon
9 mi
Upper Falls 15k
6 mi
Middle Falls 10k
3 mi
Lower Falls 5k
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