Tiadaghton Trail Challenge

Tiadaghton Trail Challenge is a trail race held in Nether Providence Township, Pennsylvania, on November 14, 2026, organized by the PA Trail Dogs. Two formats are offered: a half marathon (13.1 miles) and a 10K, both on the kind of rocky, wooded singletrack that Pennsylvania trail runners know well.

Both distances are within reach of anyone who has raced a road 10K or half marathon and wants to see what trail running is like in the fall. The 10K keeps the commitment light, while the trail half marathon is a meaningful challenge that will take longer than your road time. Prepare with 10 to 12 weeks that include one weekly trail run, some hill repeats and a gradual long run, and get comfortable with leaf-covered rocks and roots. Good grip and a relaxed, high-cadence stride are your best allies on this kind of terrain.