Sweltering Summer Ultra

Pittsfield, United States • 9 Aug 2025

The Sweltering Summer Ultra is an annual 8-hour endurance race held at Clapp Park in Pittsfield, Massachusetts. Participants run or walk laps on a certified 0.355-mile dirt and cinder track, switching directions halfway through the event. The race is walker-friendly and features a unique aid station with a no-contact bottle refill system and prepackaged snacks, plus ice pops and pizza for participants.

A virtual 12-hour option is available for remote runners supporting the AYJ Fund, a local nonprofit aiding children with cancer. Awards are given for overall and age group winners, with additional longevity and mileage recognitions. The event supports community involvement and offers volunteer opportunities. Visit the organization's website for the most recent information.

Race information

8 km
8-Hour
Visit the organization's website for the most recent information.
Trail runs nearby