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TrailUnited StatesPennsylvania

Green Monster Trail Challenge 2026

11.10.2026Wellsboro (United States)
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Pacing, fueling and crew sheet for the course you pick

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2’3777’799 m D+ ft D+

50 km31.1 mi50Klongest of 3 courses

At a glance

Green Monster Trail Challenge 2026 took place on Sunday 11 October 2026 in Wellsboro (Pennsylvania, United States). Three distances to choose from: 15, 25 and 50 km.

Longest course: 50 km with 2’377 m D+ (48 m per km: mountain terrain).

The 2027 edition is expected on Sunday 10 October 2027, date to be confirmed by the organiser. On Kliva, plan your pacing and nutrition for free, then send the plan to your watch.

A trail challenge designed for both runners and hikers of all ages, showcasing the mountains of the Tioga State Forest located in Wellsboro, PA.
From the organiser

3 courses

  1. 15km9.3mi

    518 m D+1’699 ft D+

    avg 3%

    15K
    No index

  2. 25km15.5mi

    1’219 m D+3’999 ft D+

    avg 5%

    25K
    No index

  3. 50km31.1mi

    2’377 m D+7’799 ft D+

    avg 5%

    50K
    No index

GPX trace not yet published.

Race plan

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Pacing, aid stations and fueling timed to your effort on Green Monster Trail Challenge, in one roadbook.

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Start

Wellsboro (United States)

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