Green Monster Trail Challenge

OCT
11
2026
Trail race near Wellsboro, PA offering 15K, 25K and 50K routes with substantial climbing and technical single track. Organized by Tyoga Running Club, field limited to 350 and registration closes September 27.
Sun 11 Oct 2026
50 kilometers 25 kilometers 15 kilometers

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Green Monster Trail Challenge

The Green Monster Trail Challenge is a trail race near Wellsboro, PA, organized by the Tyoga Running Club and held in the Tioga State Forest north of the Pennsylvania Grand Canyon. The event offers multiple route lengths over single track and other mountain trails with sustained climbing, stream crossings, and technical descents.

Distances and climbing:

  • 50K: 7800' total ascent
  • 25K: 4000' total ascent
  • 15K: 1700' total ascent

Aid stations are provided and staffed by local clubs and organizations. The event includes post-race food and beverages, race day shirts, Darn Tough socks for some participants, finisher medals, and entertainment. The organizer notes a no-refund policy. Race capacity is limited to 350 participants; a wait list is used if capacity is reached. There is no day-of registration. An entry fee is listed at USD 82.18 and some registration availability details are provided by the organizer. Visit the organization's website for the most recent information.

50 km
50k
25 km
25k
15 km
15k
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