Tough Mountain Challenge
JUL
25
2026
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Tough Mountain Challenge : July 25, 2026
The Tough Mountain Challenge is an obstacle race held at Sunday River Resort in Newry, Maine (15 South Ridge Road, Newry, ME 04261). The event uses ski trails, wooded terrain, and natural mountain features and includes custom-built obstacles. The main course is a 5K that features mud, water, walls, woods, and other terrain-based obstacles. The event has run since 2010 and attracts around 3,600 competitors each year. Visit the organization's website for the most recent information.
Event details
- Multiple heat waves are offered on race day.
- Entry price is listed in a range of $125–$135 (strikethrough price shown as $159).
- Early registrants are offered lodging deals with savings up to 20% on resort lodging.
- A separate Mini Mountain Challenge for children is part of the event program; registration for the Mini Mountain opens in the fall.
5 km
