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Green Monster Trail Challenge

Name: Green Monster Trail Challenge
Start: 2026-10-11
End: 2026-10-11
Location: Wellsboro

Wellsboro, United States • 11 Oct 2026

Green Monster Trail Challenge

The Green Monster Trail Challenge is a trail event in Wellsboro, PA on Sunday, October 11, 2026, organized by the Tyoga Running Club and held on terrain in the Tioga State Forest north of the PA Grand Canyon. The course follows single track and forest trails and includes steep climbs, abundant stream crossings and technical descents.

Distances offered:

50K - 7800' total ascent
25K - 4000' total ascent
15K - 1700' total ascent

Aid stations are maintained by local clubs and organizations and provide nutrition and support along the course. The event includes post race food and beverages, music and entertainment, race day shirts, Darn Tough socks, finisher medals and additional giveaways. Registration is limited to 350 participants; when capacity is reached, a wait list is generated on a first come, first served basis. Online registration closes on Sunday, September 27 at 11:59 PM ET and there is no day of registration. Cut off time limits for 50K runners were amended in 2023. The event has a no refunds policy. Visit the organization's website for the most recent information.

United States Pennsylvania Wellsboro

Race information

Website

50 km

50k

25 km

25k

15 km

15k

Visit the organization's website for the most recent information.

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