Trail Running calendar near Biddeford 2026-2027

We have found 96 Trailruns within 80 miles of Biddeford. See below where and when you can find the races.

On May 31, 2026 at Ice House Park in Woburn, MA the second annual Live Free Fun Run and Festival pairs a scenic *2.5 mile* off-road run or walk with a community festival. The festival features food trucks, a DJ, activities and tables from l..

June 2026

A family friendly Monday night trail series in Nashua offering 5K and 5-mile races plus virtual options, themed evenings with music and giveaways, and occasional frozen treats at the finish.

A 23K mountain trail race in Tamworth NH with roughly 4,800 feet of climbing, a technical loop over the 3,478 foot summit of Mount Chocorua, mandatory mountain safety gear, and inclusion in the White Mountain Endurance Cup.

A six mile trail race at Bradbury Mountain in Pownal, Maine that begins the Bradbury Mountain Trail Race Series. The course follows single and double track trails with rolling hills and a race cutoff of 1 hour 48 minutes.

A 5.4 mile trail race through Dogtown in Rockport and Gloucester, MA featuring varied terrain and named historic trails. Runners and walkers are welcome; early registrants receive T-shirts and prizes are awarded by overall and age categorie..

A trail event in Dunstable, MA supporting the Humane Society for Greater Nashua, featuring a marked 5-mile loop with nearly 600 ft of elevation gain per lap and an optional 6-hour format for repeated laps.

A mountain trail race beside the Mount Washington Cog Railway in Bretton Woods, NH, with a 2.75-mile summit climb or a 5.5-mile roundtrip across steep grades and boulder fields. Weather can change from warm at the base to snow at the summit..

A six hour timed endurance event on a flat 4 mile rail-trail loop in Poland, Maine; participants may run multiple loops with total mileage recorded and recognized, and paid entries include an event shirt.

A timed 5K loop through woods and fields at the Maine Outdoor Wellness Center on June 20, 2026. Bibs, water, snacks, and family activities are provided and a $15 registration supports community building and programming.

A trail half marathon in Lynn Woods Reservation on June 21, 2026, run as three identical loops over forested singletrack and carriage roads. The event emphasizes environmental stewardship and uses a centralized start and finish at the main..

Muddy Princess Boston is a women only 5K obstacle mud run at Kimball Farm in Haverhill on June 21, 2026. The course has 18 plus obstacles and is open to women aged 7 and up who may run, jog or walk.

Field & Forest 5 Miler is a roughly 5 mile trail race on the Crystal Spring property in Brunswick, ME. The mostly off pavement course has single track and wood bridges, and the field is limited to 50 runners.

A trail 5 km race at Libby Hill Forest Trails in Gray, ME on June 21, 2026. Online registration is $15 through June 19, race day registration is $20 and students enter free. Proceeds support trail maintenance and door prize drawings are pla..

A single-day endurance walk in North Conway offering 7, 14, 21, or 28 miles on a 7-mile loop with varied trail terrain, optional rucking weights, timed results, and tiered awards within a 10-hour finish window.

A charity team challenge on June 27, 2026 in Bristol, NH that recreates Special Forces mission tasks. Teams of 6–12 choose Operator or Recruit levels, with awards for top teams, MVPs, fundraising leaders, and participant milestones.

A community trail festival in East Bayside, Portland on June 28, 2026 featuring a 10K run, 15 or 30 mile bike rides, and a 2 Miler. Registration proceeds support Portland Trails and the Bicycle Coalition of Maine.

A 5K obstacle mud run in Minot, Maine on June 28, 2026 for women and girls aged 7 and older. The course includes 18 plus obstacles and emphasizes a non competitive, teamwork oriented experience.

July 2026

A family oriented 5k fun run in Tamworth, New Hampshire centered on historic Ordination Rock during July 4 celebrations. Organized by the Tamworth Outing Club, registration includes a bandana, ice cream, and a bib raffle entry.

A backyard ultra on Portlands Back Cove Trail where runners complete about 4.17 mile loops each hour until one runner remains. The mostly flat gravel course runs along a tidal estuary and includes staffed and unstaffed aid stations.

A looped trail 50K at Spaulding Academy in Northfield, NH featuring five 10K technical loops, about 32 miles and 4,000 feet of gain. Ten hour race limit, cupless format, and support for Spaulding Academy & Family Services.

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