Sehgahunda Trail Marathon

Mount Morris, United States • 16-17 May 2026

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.

Race information

72 km
Sehgahunda 72
26 mi
4 Person Relay Team
26 mi
2 Person Relay Team
26 mi
Trail Marathon
9 mi
Upper Falls 15k
6 mi
Middle Falls 10k
3 mi
Lower Falls 5k
Visit the organization's website for the most recent information.
Trail runs nearby

Three out-and-back distances through Letchworth State Park on May 17, 2026, with hilly gravel roads and Genesee River views. Post-race food, shirts, and finisher medals are provided.

A four-week, 90-minute trail running series for runners comfortable with about 3 miles. Sessions cover warm-ups, guided runs, hill and footwork drills, gear and safety, and include trail socks and gifts.

Trail runs in Naples NY with a rugged 25K single loop around the Cumming Nature Center and Honeoye Inlet Wildlife Management Area and a more runnable 10K. Proceeds support environmental education at the RMSC Cumming Nature Center.

Trail races at Mendon Ponds Park on a 4 mile loop with an 8 mile two loop option. The course is off road with about 350 ft of elevation gain per loop and requires runners to carry their own fluids.

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