Tough Mountain Challenge

JUL
25
2026
Test your grit at the Tough Mountain Challenge on July 25, 2026 at Sunday River Resort in Newry, ME. This rugged 5K obstacle adventure races over ski trails and wooded terrain through mud, water and walls for a full mountain experience.
Sat 25 Jul 2026

Always double-check with the organizer's website! This page may contain affiliate links.

Tough Mountain Challenge

Tough Mountain Challenge is an obstacle adventure race on July 25, 2026, held at Sunday River Resort, 15 South Ridge Road, Newry, ME 04261. The course is approximately 5K and runs over ski trails and wooded terrain, using natural mountain features and custom-built obstacles. The course includes mud, water, walls, and wooded sections. Organizers state the event serves about 3,600 competitors each year. A separate Mini Mountain Challenge is offered for children, with registration opening in the fall.

Additional details

The event uses multiple wave starts. Entry pricing is listed in the range of $125 to $135. Early registrants are offered resort lodging deals, including discounts up to 20% using a promo code provided by the organizers. The event description notes that cold beer is part of the on-site offerings. Registration for the 2026 event is open. Visit the organization's website for the most recent information.

5 km

Events nearby

Join the North American Wife Carrying Championship on October 10 2026 at Sunday River in Newry Maine. Teams race a 278 yard obstacle course with log hurdles, sand and the infamous Widow Maker for quirky prizes like a wife's weight in beer.