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July 26, 2025

Registration

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

Register Now!

Prices Increase June 3

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.

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