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Green Monster Trail Challenge

Wellsboro, United States • 12 Oct 2025

The Green Monster Trail Challenge is a demanding trail running and hiking event held in Wellsboro, Pennsylvania, within the scenic Tioga State Forest. It offers three distance options: 15K, 25K, and a challenging 50K, featuring total ascents of approximately 1,700, 4,000, and 7,800 feet respectively. The course includes rolling single-track trails, steep climbs, stream crossings, and technical descents, providing a rigorous test for participants of all ages and abilities. The event emphasizes community spirit with well-supported aid stations, post-race food, music, and entertainment. Limited to 350 participants, it is organized by the Tyoga Running Club and celebrates local culture and volunteerism. Visit the organization's website for the most recent information.

United States Pennsylvania Wellsboro

Race information

Website
50 km
7800 m+
50k
25 km
4000 m+
25k
15 km
1700 m+
15k
Visit the organization's website for the most recent information.
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