Sudbury
Trail Running Calendar near Sudbury 2026-2027
Explore the top trail runs near Sudbury for 2026-2027! We've gathered 43 exciting trail runs in the area. Check out our detailed list below to find your next local trail run.
August 2026
A community fundraising day in Groton, MA on August 5, 2026 featuring an 8.4 mile three-person relay, kids single-loop race and Little Lambs mini runs, followed by barbecue and activities, with proceeds to six local charities.
A 4 mile out and back beach run on Nantasket Beach in Hull, MA on August 6, 2026, held at low tide with a post-race gathering and proceeds supporting local causes.
A community trail run in Lynn, MA featuring a no-drop 5 km on gravel roads with refreshments and a shoe raffle at the Market Street Arc'Teryx storefront.
A 5K cross country race at Waters Farm in Sutton Massachusetts that opens the USATF New England XC Grand Prix series. Separate men's and women's open races, on site registration, and a post race awards ceremony.
A timed, summit-driven trail event on Wachusett Mountain offering 7, 14, 21, and 28-mile options, optional weighted vests for bonus swag, and up to 10 hours to complete the marked course.
September 2026
Trail Animals Running Club hosts a multi distance trail event at Great Brook Farm State Park on September 5, 2026. Looped 10K and 10 mile courses cover distances from 10K to 50 miles, plus a youth fun run and a Yeti Mischief Mile.
A community 5K run and walk in Nashua, NH on September 5, 2026 with free registration for veterans and children, a fee for participants 13 and older, event shirts, donation options and volunteer opportunities. Use #nashua5k for photos.
GBTC XC Invite in Carlisle, MA features youth and Open/Masters cross-country races at Great Brook Farm State Park on September 13, 2026. Distances include a 2K youth race and multiple 5K races; registration runs August 1 to September 11.
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.
October 2026
A timed trail ultra in Cumberland RI offering 8 hour, 12 hour, and 34 hour options for individuals and teams up to four. The 4.2 mile loop mixes smooth trail and moderately technical rocky sections.
An annual 5K cross country run or walk in Franklin Park supporting Boston Latin School Athletics. Team registration is new for 2026 and fees are tiered with free entry for BLS students.
Trail event in Brookline, NH with multiple races on the Granite Town Rail Trail and proceeds supporting local conservation.