Trail Running calendar near Thornton 2026-2027

We have found 147 Trailruns within 80 miles of Thornton. See below where and when you can find the races.

The 4th annual Chesterfield FALL Terrain 5K at Fenton Lane Park on October 18, 2026 features a 5K run/walk and a 1 mile Fun Dash, supports local charities, offers custom race shirts and age group awards.

A donation supported 5.25 miles trail race at Gunpowder State Park with a steep opening climb, single track sections, and on site race day registration.

Trail ultramarathon in Patapsco Valley State Park offering 50k and 25k options, in-person and virtual, with aid stations, event shirt, and finisher awards.

Trail races at Parvin State Park offer a half marathon and a 6 hour lap event on a mostly trail lollipop loop. The event is cupless and uses an aid station at the start and finish.

Trail ultramarathon in Titusville, NJ offering 50K and 25K routes through Washington Crossing Park and Baldpate with aid stations and a technical Rock Hopper section.

Trail race in Pottstown, PA offering 15k and 30k on technical park trails with rocks, roots and varied single and double track. Aid stations provide fruit, packaged snacks and hot options; custom and self supported fueling is allowed.

25K trail race at Ridley Creek State Park in Glen Mills PA with about 1800 feet of climbing, three aid stations, a five hour limit, and awards for top finishers.

Inaugural Barnyard Squatch 5K in Blairstown NJ, a hilly 5K trail that passes rescued farm animals with donations supporting The Barnyard Sanctuary.

5th Annual Mackyard Ultra is a race by the Baltimore Road Runners Club on October 31 at Shawan Downs in Cockeysville, MD with a $20 entry fee and a 100 runner limit.

A Halloween-themed 5K and 1 Mile at Arasapha Farms in Glen Mills that benefits the Edgmont Township Fire Company No.1, with timed 5K results, commemorative shirts, safety costume rules, and a monster costume contest.

November 2026

An annual trail event at Gifford Pinchot State Park that raises funds for canine cancer research, featuring a 5k run and a 3.5k walk with awards for canine human teams and solo runners.

A measured, professionally timed out-and-back race in Oaks PA on Nov 1, 2026 offering 10K, 5K and one mile options to support Tourette Syndrome awareness.

An endurance running event in Woodbine NJ offering 6-, 12- and 24-hour individual races plus 12- and 24-hour relays. The course uses 5.5-mile dirt laps with few roots and the venue provides camping, cabins, showers and a sauna.

Experience an off-road race weekend at Yeager’s Farm & Market featuring 4 and 10 mile trail runs. Enjoy a local atmosphere with post-race beer and bagels and earn a unique long sleeve tech shirt.

A six-hour trail challenge in Coatesville where runners complete a timed 5K each hour, aiming to finish six laps for a medal and national ranking.

A 5K trail run at Kenbrook Bible Camp with a free kids fun run, awards including medal and gift card, and a pancake breakfast to support camper scholarships.

Nighttime 10 km trail run in Reading, PA where runners provide their own lighting and follow glow markers on rustic trails, finishing at the Liederkranz German club.

A trail 8K and 5K at Unionville Vineyards on November 8, 2026 with chip timing, live results, onsite music, post race wine, and awards. Walkers and children are welcome and the event includes water stations and post race amenities.

A timed trail event at Jacobsburg State Park on a roughly 5 mile loop of single track and gravel. The Fall Back edition runs the course in reverse and offers 5 mile, three-hour, and six-hour formats.

A trail and gravel running event in Wissahickon Valley Park offering 10 km, 10 mile and half marathon options with chip timing, aid stations, limited field size, and a post-race party with live music and warm food.

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