Trail Running calendar near Thornton 2026-2027

We have found 119 Trailruns within 80 miles of Thornton. See below where and when you can find the races.

Experience the scenic beauty of the Brandywine Valley through forests and farmland. Choose between 10k, 25k, and 50k distances in this part of the USATF Mid Atlantic Off Road Series.

The Johnnycake Jolt Series offers four weekly 10k trail runs in Patapsco Valley State Park. It's a grassroots, low-key event organized by park stewards, with a discount for park members.

Tough Mudder Philly on May 23, 2026 at Plantation Field near Coatesville, PA offers 5K and 15K obstacle courses, an Infinity multi lap format, a Mudder Village spectator area, and finisher medals, shirts, headbands, and a finisher drink.

Experience a mix of road and single track trails at this Memorial Day Weekend event featuring a half marathon and a 5K. Test your skills on the rocky Plowville Section to support the Berks County Special Olympics.

The Johnnycake Jolt Series offers four weekly 10k trail runs in Patapsco Valley State Park. It's a grassroots, low-key event organized by park stewards, with a discount for park members.

June 2026

A summer marathon and half marathon on the shaded Pennypack Park bike trail with aid stations, disposable chip timing and a German themed post race party including a non alcoholic beer and bratwurst.

Join this mission-based obstacle course in Mullica Hill featuring tiered challenges for different skill levels. Complete the 4 mile course individually or in teams to earn points and support a non-profit cause.

Join a unique non competitive group run along the D&R Canal Towpath with various distances and pace groups. Support the Rutgers Cancer Institute while running in a guided train formation to a celebratory picnic.

A free, timed 5K trail run at Crystal Lake Park on June 6, 2026, with a technical course of about 300 feet of elevation gain and a 40-runner field limit. Awards and a midway water station are provided.

A trail event in Wissahickon Valley Park on June 6, 2026 offering a 10K race and a 1 mile family nature walk. Proceeds support Friends of the Wissahickon for trail and watershed stewardship.

2026 Trail Blazer Run at Paradise Farm Camps offers a 5 Mile, 5K and 1.5 Mile family walk/run, with proceeds supporting East Bradford Township public trails. Race day includes a race shirt, an America 250 gift while supplies last, post race..

Experience a unique endurance test at the Wildlands Conservancy South Mountain Preserve featuring a last person standing backyard ultra a nighttime trail lap and a non alcoholic beer mile.

Experience a scenic 5 mile trail run through Lancaster County Central Park featuring grass paths and water crossings. Compete for age group awards and enjoy a post race prize raffle in a beautiful natural setting.

Test your endurance on a 2 mile paved loop at the Rodale Park 12 Hour Challenge. Cycle, run, or walk to support the development of the September 11th National Memorial Trail.

This unique 10k trail race in Nolde Forest uses an age-graded start, giving everyone a chance to compete. Runners are grouped by age and gender, with head starts calculated to level the field. A portion of proceeds supports the maintenance..

Trail races at Coventry Woods Park on June 28, 2026 include 5K, 10K, timed 3 hour and 6 hour events plus a 6 hour team relay. Courses are mostly single track with notable elevation and on-course aid stations.

July 2026

Join this free no-frills 5K race through the scenic Lehigh Parkway in Allentown. Experience a community event along the Little Lehigh Creek featuring a casual post-race atmosphere with snacks provided by the organizers.

A free Forrest Gump themed fun run on Lakeside Loop in Owings Mills offering a full 4.4 mile loop or a 1 mile out-and-back option, meeting at New Town Village Center with themed attire suggested.

Experience an obstacle course weekend at Blue Mountain featuring 5K, 10K, and kids races. Navigate dense forests and rugged hills in the Poconos with spectator access via chair lift for mountain views.

Join a 5k run or a 1-mile walk on the scenic, traffic-free Ironton Rail Trail in Coplay. The event supports a cause and offers a T-shirt, refreshments, and professional timing. Awards are given across multiple age groups for the 5k.