The Hamsterwheel - New Boston, NH

New Boston, United States • 1 Nov 2025

New Boston, NH hosts The Hamsterwheel, an 11th-year ultrarun along the New Boston Rail Trail by the Piscataquog River. The course is a continuous 4.0-mile loop that is largely flat with one minor speed bump, starting near the Hillsborough County Fairground and turning at Lang’s Station. Runners may choose 6, 12, 24, or 30 hours, with relay and team-entry options.

Pacers are allowed after dark for longer races; crews and tents are welcome; dogs are not allowed. A central aid station provides water, electrolytes, real food, and gels. Finishers earn a belt buckle, solo or with a team, with chip timing. Visit the organization's website for the most recent information.

Race information

30 km
30hrs
30 km
30hrs Relay
24 km
24hrs
24 km
24hrs Relay
12 km
12hrs
12 km
12hrs Relay
6 km
6hrs
6 km
6hrs Relay
Visit the organization's website for the most recent information.
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