Trail Running calendar near Princeton 2026-2027

A recurring one-hour trail run for women and nonbinary participants at North Reservoir in the Fells, covering a 3-mile loop at a conversational pace of about 11–12 minutes per mile. Sessions are in person and may be canceled for steady rain..

Trail loop event at Penwood State Park with 17K and 50K options on rocky single track and forest roads. The 50K uses three loops on much of the Metacomet Trail and carries a nine hour cutoff.

Prospect Acres 8 hour ultra on April 18, 2026 features repeated 2 mile loops through fields and woods with 230 ft of elevation gain per lap. Free parking, sauna and cold plunges are available and registration costs $25.

TARC Spring Classic in Weston, MA offers multiple running races on April 25, 2026, with distances from 10K to 50K. Registration is listed as free.

Experience three seasons of trail running and walking through scenic conservation land and a working vegetable farm in Wrentham with this unique 5K triple series.

Experience a scenic 5k trail run through conservation land and working farmland in Wrentham. Celebrate Earth Day with an off road course featuring natural obstacles and community focused agriculture support.

A student run community event on April 25, 2026 at MacDuffie School in Granby, MA featuring a flat cross country 5K and an optional Color Run, with 100% of proceeds going to Dakin Humane Society.

A 12 mile technical out and back trail race on the Holyoke Range near Amherst, MA, with more than 3,500 ft of elevation gain. Rocky singletrack ridgelines, two manned water stations, and registration currently shows full with a waitlist.

A chip timed 5K trail race at Odiorne Point State Park with kids fun runs and a post race beach cleanup, raising funds for Marine Mammal Rescue.

The Big A 50K Trail Race is a challenging loop course on Mount Agamenticus with technical, rocky terrain and significant elevation. Participants can choose their distance, from 10 miles up to the full 50K. The event is free to register for,..

Celebrate National Truffle Day with a chocolate themed trail run at Giddings Park. This event features a three loop 5K for all ages and a kids fun run to support Franklin Elementary School programs.

Experience a trail run or walk through the campus of The Hartsbrook School in Hadley. Choose between a 5k or a 1 mile race on natural terrain while supporting local land stewardship and agricultural education programs.

A technical trail race on the Wapack Trail in Ashburnham, MA on May 9, 2026, offering 21.5, 43 and 50 mile options over rocky single track and significant elevation. Registration is limited, manually timed, and nonrefundable.

A trail race on Concord’s Winant Park Trails with two distances on singletrack, switchbacks, and nordic-style paths; proceeds benefit the Ralph Waldo Emerson School for Preschoolers and day-of-entry is available.

Trail races at Watuppa Reservation in Fall River on May 9, 2026, featuring grassy fire lanes, winding single track and aid stations each lap. Distances offered are 10K, 30K and 50K.

Trail running festival in Rollinsford, NH offering a 5 Miler, a 5K and a Canicross 5K on mixed rail trail and river single track, with specific rules for canicross teams and an aid station on the 5K route.

Experience the eighth annual Spring Fling 600 trail races at YMCA Camp Sloper. Choose between a 6 mile race or a 10 hour challenge to complete as many loops as possible on a scenic three mile course.

A community 5 km run and walk on May 9, 2026 at Pinkerton Academy in Derry, NH, with a course across campus and nearby cross-country trails. Proceeds support the Pinkerton Fund to benefit students.

A dog friendly 5K and a 2.6 mile walk at Borderland State Park on May 9, 2026 to benefit School on Wheels of Massachusetts. The event features refreshments, pup cups, kids pupsicles and free t shirts for early registrants.

A last person standing loop race on Ragged Mountain where runners repeat a roughly 3.11 mile loop and must finish each lap within one hour; entrants are eliminated if they fail to start or finish a lap, continuing until a single finisher re..