Green Monster Trail Challenge
15K · 9.3 miles
Ran · this year's race is done.
Race dateOctober 11, 2026
Start10:45am
When13 days ago
Who's going to Green Monster Trail Challenge?
Free. You can start with nothing.
Free, and always will be. NavRun makes money from race-day planning for runners who want it, never from this.
Ultras change constantly, sometimes the morning of. Always confirm with the race director and the official website before you rely on anything here.
Distance
The race
9.3 miles
High point
not checked yet
Time limit
not checked yet
Finish rate
not checked yet
The course
Where it goes
loop · 2 aid stations
The Mini Monster. It starts with a mile on Straight Run Road, then climbs about 1000 ft on Deer Trail, a singletrack up the face of Mt. Nesmuk. After 1.5 miles along Stone Road on the mountain top there is a first aid station with water and Gatorade. Jim Close Trail and Birchstill Trail lead to the Broad Ridge aid station, and the 800 ft technical descent of Frankenstein's Forehead leads down to the finish on Straight Run Road.
Singletrack climbs, an 800 ft technical descent and several stream crossings.
The race
What this one is
A trail challenge in the Tioga State Forest, just north of the Pennsylvania Grand Canyon near Wellsboro, run by the Tyoga Running Club. Runners and hikers choose a 15K, 25K or 50K on singletrack with steep climbs, technical descents and stream crossings. All three start and finish at the Straight Run Road start/finish area, followed by a post-race lunch.
Getting in
Getting in
Entry, lottery and what the race asks of you before race day.
- Lottery
-
not checked yet
- Lottery opens
-
not checked yet
- Lottery draw
-
not checked yet
- Field cap
-
350
sites.google.com
- Registration
-
UltraSignup
ultrasignup.com
- Qualifying
-
not checked yet
- Minimum age
-
not checked yet
- Transfers
-
No
sites.google.com
- Deferrals
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No
sites.google.com
Crew access, pacers and drop bags
The rules that shape your day
Anything marked "not checked yet" is a gap in what we hold, never a no from the race.
- Crew allowed
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not checked yet
- Vehicles per runner
-
not checked yet
- Pacers
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not checked yet
- Muling
-
not checked yet
- Drop bags
-
not checked yet
- Cupless
-
Yes
sites.google.com
- Course marking
-
not checked yet
- Night running
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not checked yet
- Dogs
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not checked yet
- Headphones
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Allowed
sites.google.com
- Crew rules
-
not checked yet
- Pacer rules
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not checked yet
- Drop bag rules
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not checked yet
- Cutoff philosophy
-
not checked yet
Aid stations
Every stop, and what you get there
● yes ○ no ? nobody has checked – does not apply to this race
| Mile |
Station |
Cutoff |
Crew access |
Bag |
Pacer |
Med |
To next |
| ? |
First aid station
|
? |
? |
? |
? |
? |
? |
| ? |
Broad Ridge
|
? |
? |
? |
? |
? |
? |
Same race, other lines
Other distances and other years
What it looks like out there
Somebody has been out there with a camera
the tables say the climb is long. these say what long feels like.
Nobody has been out there with a camera or a microphone yet. A gap means nobody has found it, not that it is not out there. Seen a course preview or a film of this one? Send us the link.
Add to this page
What you know
every one of these is read by a person before it changes anything
Ran this race? Tell the next runner what you know.
Nobody sees it until we have read it. No account, no sign-in.
See something wrong or out of date? Suggest an edit.
This changes nothing on the page on its own. Somebody checks it against the race first.
Were you out there? Say which stops a text got out from.
Nobody sees it until we have read it. No account, no sign-in.
Seen a course preview or a film of this one? Send it over.
Somebody watches it before it goes anywhere near this page. What we are after is footage of this course, on the ground. If it would be just as true of any other race, it is not this.
Have the GPX? Send us the link.
We want the address of the file the race publishes, not the file. We download it from there so the page can say where the line came from.
Are you the race director? Get in touch and we'll make it right.
We read every one of these and we write back. Every fact here carries the source it came from, and the way a wrong one gets fixed is a person checking it against what you tell us.
Where this came from.
Every fact on this page records its source and when we last checked it: 34 sources for this race. Hover a source link to read the sentence it came from.
21% of what we track for a course is filled in. The rest says "not checked yet" rather than guessing.
Ultras change. We will tell you when this one does.
Cutoffs move, races get postponed, lotteries open and close. We read the race's own sources and record where every fact came from. Put your email in and we will send you what changed, and where we read it.
No account, and nothing to cancel.
What happens to your email. Nothing else. I do not sell it, and I will not send you anything except this race changing. One click gets you out.
I keep this catalog because the information is scattered and hard to trust. Telling you when it moves is the same job.
