About
Based at Sunday River Resort in Newry, Maine, this race might be the most fun you'll ever have while also considering crying.
What is TMC?
Tough Mountain Challenge is a rugged 5K through the mountains of Sunday River, packed with mud, water, hills, and a gauntlet of wild obstacles.
You’ll run, crawl, slide, and scramble your way through the course—laughing, swearing, and maybe questioning your life choices.
It’s not about speed. It’s about showing up, getting filthy, and making it to the finish with your team (and your shoes) still on.
2025 Race Results
You put your blood, sweat, and tears into the mountain, so go ahead, you earned some bragging rights. You can find your final time at the link below so you can rub it on your friend's face.
2025 Schedule
Check-in for the race in the Mahoosuc Room at South Ridge, then head slopeside for all the activities.
4-8PM
Early Check-In
Get your race packet and swag for Tough Mountain and Mini Mountain Challenge the day before for a stress-free race day.
5:30-8:30PM
Pink Talking Fish
Once you've grabbed your race packet, head outside and join the party! TMC participants get FREE admission Friday night, so dance out that lactic acid and get ready for a fun time.
7AM
Check-In
Competitors can start checking in at 7AM, and we recommend that you get there at least an hour before your heat to get your race packet and swag.
8AM
Tough Mountain Challenge Heat 1
Heats will run on schedule, weather permitting, until the last one goes out in the early afternoon.
5:30-8:30PM
Pink Talking Fish
Night 2 of Pink Talking Fish. Forget how tired you are, have a beer, and listen to some rad music.
10AM
Mini Mountain Challenge Wave 1
Kids ages 10-12 years old take off on the lower first mile section of the Tough Mountain Challenge course.
10:30AM
Mini Mountain Challenge Wave 2
Kids ages 7-9 years old tackle a half-mile course filled with water, mud, and fun.
11AM
Mini Mountain Challenge Wave 3
The youngest kiddos between the ages of 4-6 years old take off through a quarter-mile course filled with obstacles, and end with a foam wall finish!
Round out your weekend
Why not make a trip of it? Stay the night (or two) at one of the Sunday River hotels and don't worry about oversleeping and missing your start.
Want more to do once you've finished racing? There's tons to do around the rest of the mountain and throughout Bethel.
Rest your weary, muddy headLodging
Full-service hotels with restaurants, outdoor pools, health clubs, and shopping.
Save up to 20% on resort lodging on Tough Mountain Challenge weekend using promo code TMC.
Take To The SkyScenic Lift Rides
Save some steps and soar to the top of North Peak.
Good, clean funActivities
From axe throwing to hiking, there's something for everybody.
