Green Monster Trail Challenge

Green Monster Trail Challenge The Green Monster is a trail challenge in the Tioga State Forest designed for both runners and hiker Race sponsored by Darn Tough Vermont.

The Green Monster is a trail challenge designed for both runners and hikers of all ages offering 15k, 25k and 50k options. This course is nestled in the mountains of the Tioga State Forest just North of the PA Grand Canyon and it is the mission of the Tyoga Running Club to showcase the beauty and difficulty of this terrain. You will be confronted with challenging single track trails, steep climbs,

and technical descents all of which are very unforgiving. You will also find several dicey stream crossings and an occasional log in which you will have to hurdle. This course is not for the faint of heart and will challenge the most conditioned athlete! Highlights

- Challenging Trails
- 50k: 7800' Total Ascent
- 25k: 4000' Total Ascent
- Maintained Aid Stations
- Post Race Lunch
- Music and Entertainment
- Race Day Tees
- Finisher Medals

The Event

It will be evident to you that the Green Monster supports our local community in every way possible by using local vendors providing the goods and services for this event. You will find local high school groups and local volunteers maintaining the aid stations, catering to your needs, and cheering you on! (MORE COWBELL)

We are fortunate to have strong relationships and generous support from our sponsors who are inspired by all of you who participate. Their commitment will allow us to bring a race day experience filled with entertainment, great food, and support from beginning to end . . . resulting in positive memories for you to take home.

02/18/2026

Hey you wild trail goblins and elevation junkies… 👀🌲
The GREEN MONSTER is officially UNLEASHED. 🟢👹
That’s right — Green Monster is now OPEN for registration on Ultrasignup and it’s ready to chew up your quads and spit you out with a steller after party.
📅 October 11
💰 New prices. Same great event and after party.
🎉 Close out your trail running year the right way — dirty, tired, and dancing anyway.
Whether you’re chasing a PR, chasing your friends, or just chasing snacks at the finish line, the Green Monster is waiting. Expect trails, thrills, maybe a few dramatic life choices, and a celebration that makes it all worth it.
This isn’t just a race.
For some it is a season finale.
It’s a vibe.
It’s the party your running shoes have been training for.
Tag your trail crew.
Sign up before your friend does.
Let’s make October 11 legendary.

If you love the grit of the Green Monster, then sign up for Tyoga Running Club's  RISE & RUN ! We’re stripping trail run...
01/13/2026

If you love the grit of the Green Monster, then sign up for Tyoga Running Club's RISE & RUN ! We’re stripping trail running back to its purest (and earliest) form.
Rise & Run isn't your typical pampered race. It’s raw, it’s fast, and it’s built for the community. Here is why you need to be there:
The "WTF" Start Time:
We kick off at 3:59 AM. Experience the woods in that magical, quiet pre-dawn window.
Old School Support:
Forget the buffets. We have one aid station. Bring what you need, find your flow, and keep moving.
Insane Value:
We’re keeping it affordable so you can keep running.
$25 for the 25k
$50 for the 50k
No fluff, just miles and a massive sense of accomplishment before most people have even finished their first cup of coffee.
DID I MENTION IT TAKES PLACE IN THE PA GRAND CANYON? RISE & RUN IS TRULY UNIQUE!
Are you in? Check out the full details and grab your spot at

Register Now!

If you have photos that you took during the 2025 Green Monster you can add them to the album link below.
10/13/2025

If you have photos that you took during the 2025 Green Monster you can add them to the album link below.

Shared album · Tap to view!

10/13/2025

Check out Tyoga Running Clubs page for weekly runs and more events.

https://www.facebook.com/share/1W2ku4Z3fi/

Tyoga Running Club, Inc. is a 501(c)(3) non-profit organization that was formed for charitable purposes.

Our Green Monster crew has come through with set up. We are ready to see all of our Monster family bright and early rain...
10/11/2025

Our Green Monster crew has come through with set up. We are ready to see all of our Monster family bright and early rain or shine!

Extra big thank you for all of our volunteers over the past few days. We would not be able to host this event without you!

Huge thanks to all of the participants! None of this would be possible without our crazy monster running family! If we had no runners we would not be here!

Aid station teams we appreciate you so much! Our runners would be lost without you.

We are almost ready for all of you Monsters! See you soon !
10/10/2025

We are almost ready for all of you Monsters! See you soon !

As we get closer to race day…. Jsut a few reminders below. There are cut off times for the 50k please make sure you are ...
10/09/2025

As we get closer to race day…. Jsut a few reminders below. There are cut off times for the 50k please make sure you are up to date on those times and what aid station. They are shown below. If you are doing the 50k we do offer one drop bag location. You are not required to use it however if you are using the drop bag location ( the aid station at Hessle Gessle) please be sure to arrive early enough to check in, get your bib number, and get your name and bib number on your drop bag prior to the pre race commencements.

If you do feel you need to drop from the race. Please do so at the closest aid station. Let them know your name and bib number and that you are dropping. If you do not countless people will spend many hours looking for you on the course….

We look forward to seeing you Sunday!

10/09/2025

Reminder of the start times!!!!

50k 730am
25k 900 am
15k 1045am

Pre race details will start approximately 20-30 minutes prior to each event outside of the registration tent. Please please please plan to arrive in time enough to make it to the registration tent to pick up your bib and get to the pre race announcements. It is a slight walk from the parking area to the start line/ registration area.

Rest up monsters and enjoy the rest of your taper! We look forward to seeing you Sunday.

Swag bags are packed and ready for you to pick up! Thank you to everyone who took time out to help stuff the swag bags! ...
10/08/2025

Swag bags are packed and ready for you to pick up! Thank you to everyone who took time out to help stuff the swag bags!

Reminder of the location and pickup times at Wild Asaph Outfitters Main Street Wellsboro PA

Thursday October 9th 10am -530pm
Friday October 10th 10am-7pm
Saturday October 11th 10 am-530pm

If you are not able to pick up at that location during those times you can pick up day of at the registration tent when you pick up your bib. Please remember to a lot enough time to get there and grab that with your bib prior to your event.

If you have arrived and have realized your forgot your most vital run items you can pick up your missing items at Wild Asaph Outfitters when you are picking up your swag bag. They have a varitey of items you may need including but not limited to gels, socks, hats, head lamps, clothing, shoes, coats, sleeping bags, whistles. A variety of brands like Kavu, Cotopaxi, Patagonia, and Prana. If you are camping they have a variety of camping items if you forgot those. They even have items in stock for your pooch! Be sure to ask when you go in if there is something you forgot or are missng.

Address

176 Straight Run Road
Wellsboro, PA
16901

Telephone

+15704393686

Website

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