Trail Running calendar near Chesterfield 2026-2027

A trail event at Ascutney Outdoors offering 50 mile and 50K ultra runs, team relays, mountain bike races and kids fun races. Proceeds support Vermont Adaptive and registration details are published for the 2026 race weekend.

Trail races at the Assabet River National Wildlife Refuge in Sudbury MA include a 10K, a 30K and a 6 hour timed event. The course uses dirt and gravel double track trails with two aid stations and cupless fueling.

Run for Nature in Lowell on September 27, 2026 features a 10K trail run, a 5K run or walk and a kids one mile fun run, with marked trails and community activities supporting local conservation and education.

A timed endurance run in Cohoes, NY on October 3, 2026 offering 6 hour, 3 hour, 1 hour and relay options while supporting Flutters of Hope, a nonprofit for those affected by eating disorders.

A 50 kilometer trail ultramarathon on October 3, 2026 in Kattskill Bay, NY, that traverses multiple Adirondack peaks around Lake George with about 9,000 feet of climbing and staffed aid stations with cutoffs.

Trail races in Groton, Massachusetts on October 4, 2026, organized by local running and trails groups. Two distances, 9.5 miles and 3.4 miles, total entries limited to 250, online registration closes October 3.

A 26.4 miles trail marathon in Ashford Connecticut on October 4, 2026, run on the Nipmuck Trail with rocky and rooty sections and wood bridges. A two person relay is offered and cutoffs are set by elapsed times.

Keene Family YMCA Fall Foliage Trail Races feature 5K and 10K trail courses starting and finishing at the Keene YMCA, with chip timing, age-group prizes, and proceeds supporting YMCA programs and access.

A one-mile community event in Gilford, New Hampshire on October 4, 2026, with categories for adults, youth, and children and a complimentary shirt for those who register before September 16.

A fall trail race day in Norfolk, CT offering 5K, 10K and a half marathon with steep climbs, private-trail sections, a cupless policy with water stations, and on-site food and beverage vendors.

A 5K trail race and 1-mile fun run at Tibbetts Field in Madbury, NH on October 4, 2026, featuring a 2-mile loop through Powder Major Forest over natural terrain. A portion of proceeds will support a local family in need.

Experience the peak of New England autumn on a journey through the mountains and fields of central Massachusetts. This trail event offers three distances crossing state borders for runners seeking adventure on the Midstate Trail.

A trail event on Wright's Mountain in Bradford, VT, offering 30-hour, 12-hour and 10K options on a mixed-terrain 10K loop, limited to 100 runners and featuring themed tarot-card awards and milestone prizes.

On October 11, 2026 the HFC Striders Cross Country Festival returns to Wayland for its 20th running, featuring 3K youth races across age groups and two 5K open races, with awards and proceeds benefiting Wayland High School.

A rugged trail race at Pawtuckaway State Park featuring technical terrain, boulders, streams and a rocky climb. It offers a half marathon and a 5 mile option and lists $7500 in prize money for 2026.

Experience a point to point trail race in Northeast Connecticut on the Airline Trail. Choose between marathon, half marathon, and 10K distances with individual or relay team options to support local student education.

Experience New Hampshire’s original 30 hour ultramarathon on the historic Granite Town Rail Trail. Choose from multiple distances and relay options in this flat and fast Halloween themed fundraiser for local trail conservation.

Explore the scenic trails of 100 Acre Woods in Malta, New York. This community event on October 18, 2026 features 2k, 3k, and 5k trail runs. All proceeds support local trail maintenance.

A fall trail race at Mt. Tom State Park on October 24, 2026, with single and relay options from 5k to 25k on rugged single-track terrain. The event supports Kestrel Land Trust and includes aid stations, medical crews, and awards.

A 5K on October 24, 2026 at Stratham Hill Park that runs along Great Bay and benefits Great Bay Stewards; the mostly downhill course includes a race shirt for timely registrants and a bib with a beer or cider coupon.