Trail Running calendar near Seven Valleys 2026-2027

A trail event at Cromwell Valley Park on May 9, 2026 offering 25k, 12.5k and a family 5k with mostly single track trails and mile marker activities for kids. Proceeds support local conservation groups.

Experience a trail run through the hills and woodlands of ChesLen Preserve with a 5K race or 2 mile fun run. Enjoy a post race celebration featuring live music, food trucks, and craft beer at the pavilion.

Experience a technical trail run through the scenic woods of Camp Hebron with 5K and 10K courses. Navigate hills and stream crossings to earn a finisher beanie and enjoy post race refreshments for a good cause.

A Mother's Day 5k and 10k in Silver Spring, Maryland, held by Swift Running with a course that passes through Martin Luther King Jr. Recreational Park. The event offers in person and virtual entries with tiered registration fees.

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.

Experience a fast and flat race along the historic Chesapeake and Ohio Canal Towpath in Potomac. With 5k, 10k, and half marathon distances available, walkers and runners of all kinds are welcome at Carderock Park.

Trail races at Kelly's Run Nature Preserve in Holtwood on May 16, 2026 include chip timed 10K and 5K courses plus a free kids trail race of about 1.5 miles. The 10K features 1,256 feet of elevation and an aid station at Pinnacle Overlook.

Join the Ed Poling Memorial HARC Hike for Hunger & Hope, now in its 14th year. Choose from scenic C&O Canal Towpath hikes in May or a challenging Appalachian Trail hike. This fundraising event supports local community programs.

Test your resilience in this 24 hour endurance challenge in Annapolis. Set your own mileage goals to honor military heroes while enjoying provided meals and a community trail running environment.

A morning 5K held during the Fair Hill Scottish Games on May 16, 2026, with a $40 entry that includes game admission; on-site cash entries and ATMs are available, and cash prizes plus a trophy and Scottish claymore are awarded to top finish..

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.

An evening 5 km and 10 km run through the historic Manassas National Battlefield with start and finish at The Winery at Bull Run in Centreville, VA. In-person and virtual entry options are available.

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.

The Bubbletown What The Duck Ultra is a 12-hour timed event on a certified 1.4-mile loop in Spring Meadows Park. Run solo or with a team to earn a finisher buckle for 35.48 miles or a hoodie for the same distance, with flexible team formats..

A trail and road mix half marathon and an all trail 5K centered at Sleepy Hollow Athletic Club. Both races run largely on the Horse Shoe Trail and support Berks County Special Olympics.

A 31.9 mile trail ultramarathon at Cowans Gap State Park on May 24, 2026, with about 5,800 feet of elevation gain and seven aid stations. Entry is limited to 75 runners and prior ultramarathon completion is required.

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.

A backyard ultra at Manidokan Camp in Knoxville, MD on May 30, 2026, featuring official 4.167 mile laps and a 1 mile 24 hour event. On-site camping, aid station, showers, timing, shirts, and cash prizes for the winner and the assist.

Join the 14th annual Hike for Hunger & Hope with two events. Choose a challenging 10 or 20-mile Appalachian Trail hike in May or a scenic 5K/10K on the C&O Canal. All hikes support local food programs and refugee services.