Mountains-to-Sea Trail 50K Challenge
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Event overview
The Mountains-to-Sea Trail 12M & 50K Challenge takes place on Sunday, April 12, 2026, in Durham, NC. The 17th annual trail race follows single-track sections of the Mountains-to-Sea Trail around Falls Lake. Two race distances are offered:
- 12 Mile
- 50 KM
The 12M and 50K courses are being updated for 2026 because of construction at Blue Jay Point County Park; updated course maps will be posted when available. The event is organized by Bull City Running Co.
Course, support and logistics
Both races start and finish at Rolling View State Park, where parking is available. The event is cupless; participants are asked to carry their own hydration device. Aid stations are located about every 3 miles and will provide water, electrolyte drink, energy gels, snacks, and basic first aid supplies. 50K aid stations will include additional snacks and fruit. Drop bags are provided for 50K runners at the turn-around and finish; 12M runners may leave a bag at the finish in a designated area. Time limits are 8 hours for the 50K and 3.5 hours for the 12M. All finishers receive a custom finisher award; additional awards are given to the top three overall finishers and top masters, male and female. Teams of six may register for a team challenge scored by combined finishing positions. Visit the organization's website for the most recent information.
