DateExpected
Early October 2027
Based on past editions. We'll confirm when the organiser announces.
Venue
176 Straight Run Road, Wellsboro, Pennsylvania 16901
Wellsboro, Tioga County
Countdown
October
The friendly way in: 15 km with a modest 500 m of climbing, and the biggest field of the three races. Run it, or hike it at your own pace.
Key facts
01No time restriction stated
02Open to runners and hikers of all ages and abilities
Create a free training plan for the Green Monster Trail Challenge 15 km
7-day free trial, no card required
The course
One lap, on repeat
Wellsboro · one lap
Distance15km
Total climb518m
Start · finishOne lap · elevation
0 kmDrag map to rotate15.4 km
Weather
Early-October, Wellsboro
17°CTypical high
6°CTypical low
-4°CColdest in 20 years
36%Days with rain
Highs around 17°C and lows around 6°C, but it has dropped to -4°C. Rain on 36% of days. Pack for the cold end, not the average.
NASA POWER data, 2006-2025, the week either side of race day
2025 results
Who finishes, and how
#RiderTimeAvg speed
01Marisa Deichert01:30:0510.0 km/h
02Christine Fye01:43:508.7 km/h
03Lauren Castellucci01:46:588.4 km/h
95
Women finishers
2:37:50
Median time
5.7 km/h
Median speed
Women · 2025 results, as published by the organiser.
How fast could you finish?
Get a prediction based on your recent training
Organiser
OrganiserTyoga Running Club
Running since2013
Training
Training for the Green Monster Trail Challenge 15 km
We don't do generic plans. We combine deep knowledge of this race's demands with your recent training, then build a plan with you that progresses as you do.
Beina integrates directly with your existing tools to understand your current fitness, and synchronise your planned sessions.
Intervals.icuWhat a Green Monster Trail Challenge 15 km plan targets
Typical sessions
15 km with 518 m of climbing
Time on feet and fatigue resistance
Fuelling and pacing for the whole event
What your weeks look like
Typical sessions
Long runs that build time on your feet
Tempo and threshold sessions to hold race pace
Back-to-back weekend runs for fatigue resistance
Not a generic schedule
Typical sessions
Built from your current fitness and the time you actually have
Adapts every week as Beina learns how you respond
Syncs your sessions straight to Garmin and Wahoo
One clear next session, never a wall of spreadsheet
Entries open now
Get your Green Monster Trail Challenge 15 km plan.
7-day free trial, no card required.
Other races at Green Monster Trail Challenge
More events in October in United States
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