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Tough Mountain Challenge

Name: Tough Mountain Challenge
Start: 2026-07-25
End: 2026-07-25
Location: Newry

Newry, United States • 25 Jul 2026

Tough Mountain Challenge

The Tough Mountain Challenge is an obstacle course event held at the Sunday River Resort in Newry, Maine. Since its inception in 2010, the event has utilized the natural terrain of Western Maine to create a course across ski trails and wooded areas. Participants encounter a combination of natural mountain features and custom-built obstacles.

The event features a 5K obstacle course distance. The course is designed to incorporate mountain terrain, mud, and water elements. Participants have the option to enter various waves starting throughout the morning and midday.

Available distances:

5K obstacle course

The event takes place at 15 South Ridge Road. Registration typically opens a year in advance, and the registration fee varies depending on the selected wave. The course is set specifically within the landscape of the Sunday River Resort, utilizing the specific elevation changes and wooded sections found on the mountain. Visit the organization's website for the most recent information.

United States Maine Newry

Race information

Website

5 km

Visit the organization's website for the most recent information.

Trail runs nearby

Sunday May 3

Big Day Run Off

Gorham

13 mi

A trail half marathon in Gorham, NH that runs mostly on singletrack through the Coös Trails Network and starts and finishes at Big Day Brewing. Proceeds support Coös Cycling Club stewardship and aid stations are planned.

Thu - Thu May-Jun 14-18

Spring Trail Running

Gorham

A spring trail running and walking series at Great Glen Trails in Gorham, NH running May 14 to June 18, 2026. Courses of 5 km, 3 km and 1.5 km are offered, with series and one time entry fees and leashed dogs permitted.

Saturday May 16

Bethel Rotary 5k

Bethel

1 mi

5 km

A community 5K in Bethel, ME presented by HealthReach Community Health Centers to support after school programs for K-12 students. The event has an in person race on May 16 and a virtual option May 1 to May 16; under 18 entries are free.

Saturday May 16

Frost Heave

Berlin

13 mi

A muddy trail event of roughly 13.1 miles around Jericho State Park in Berlin NH that is open to trail runners this year as well as mountain bikers. Proceeds support Coös Cycling Club trail maintenance and youth cycling programs.