Skip to main content
July 26, 2025

Registration

Register for the 2025 Tough Mountain Challenge and Mini Mountain Challenge!

Register Now!

Last chance to register: July 23

A group of ladies covered in mud.

Tough Mountain Challenge

Registration for Ages 13+

From $114

Register Now Learn More

Mini Mountain Challenge

Registration for ages 7-9 and 10-12

$29

Register Now Learn More
Two children at the Mini Mountain Challenge

Mini Mountain Challenge

Registration for ages 4-6

$19

Register Now Learn More

Race Now, Win Later

Sign up for the 2025 Tough Mountain Challenge for the chance to win incredible prizes, including a new camper, Red Sox tickets, and more!

Registration automatically enters you into the prize drawing on July 26 at 5:30PM.

Participants must be 18 or older, and present, to win.

Register Now All The Prizes
A truck towing a camper on a dirt road.
Glowsticks hanging from a feature at the Tough Mountain Challenge.
Participants running uphill at the Tough Mountain Challenge.
Participants at the starting line at Sunday River's Tough Mountain Challenge.
01 / 04

Participants at the Tough Mountain Challenge at Sunday River Resort, in Newry, Maine, climb up the side of a trail covered with water, tires, and rope during the obstacle course.

2025 Tough Mountain Challenge

Stay Close to the Action

Save up to 20% on resort lodging on Tough Mountain Challenge weekend using promo code TMC.

Book Now Explore Hotels
© Boyne Resorts 2025