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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.

Saturday May 16

Bethel Rotary 5k

Bethel

1 mi

5 km

Community road event in Bethel, ME with an in-person 5K on May 16 and a virtual 5K option May 1 through May 16. It supports after school and enrichment activities for K-12 students in MSAD 44.

Saturday Jun 20

Race the Cog

Mount Washington

3 mi

6 mi

A mountain trail race beside the Mount Washington Cog Railway in Bretton Woods, NH, with a 2.75-mile summit climb or a 5.5-mile roundtrip across steep grades and boulder fields. Weather can change from warm at the base to snow at the summit..

Saturday Jul 25

Baldface Scramble

Chatham

14 km

29 km

Trail runs from Baldface Farm in Chatham NH with 29 km and 14 km routes that cross the Baldfaces and include exposed ledges, scrambling and substantial elevation gain. Mandatory safety gear and prior mountain trail experience are required.