Trail Running calendar near Annapolis 2026-2027

A *100-mile* ultramarathon on the C&O Canal towpath near the Potomac River, run as one ~40-mile loop plus two ~30-mile loops. Aid stations appear every 3–6.9 miles and the event is a WSER 2027 qualifier.

Experience a unique trail race through an active rock quarry at the Luck Stone Leesburg Plant. This 5K event supports environmental preservation and features family activities and awards for all ages.

An annual 5K at Marymount University on April 25, 2026, run on the Bluemont and Custis Trails with a post-race gathering, a virtual option, chip timing, and guaranteed shirts for early registrants.

Run a scenic 5k around the Bluemont Station Brewery property in Virginia. The event welcomes both runners and walkers and offers in-person and virtual participation options.

Run or walk a 5K trail race under the Flower Moon at Brandywine Creek State Park. This inaugural event supports local trail nonprofits and finishes with a moonrise celebration featuring s'mores and lawn games. Leashed dogs are welcome to jo..

Farm Park Challenge is a trail running event at the Agricultural History Farm Park in Derwood, Maryland on May 2, 2026. Options include a marathon, a 25K, and timed three hour six hour and ten hour challenges run as five mile laps.

A community 5K and 10K in Rock Creek Park on May 2, 2026, organized by Rock Creek Conservancy. The event blends trail and road running with guided tours, awards, and activities while supporting park restoration and future improvements.

A trail run on May 2, 2026 at 10709 Gunston Rd in Lorton offering a Fun Run, 5K, 10K and virtual options. Proceeds support no-cost enrichment programs at Gunston Elementary School.

Trail half marathon and 10K at Fountainhead Regional Park near Washington D.C. Courses feature singletrack with rocks and roots, stream crossings, multiple aid stations, and notable climbs, with chip timing and postrace support.

Join the 10th annual cross country event at Spencerville Adventist Academy featuring a 5K, 1 Mile run, and Kids Fun Run. Enjoy a campus course with finisher medals, team options, and a costume contest for all participants.

A fundraising 5K run/walk through My Lady's Manor in Monkton, Maryland, supporting The Harford Land Trust and The Manor Conservancy. Includes awards by overall and age groups and a post race happy hour with finger foods.

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.

Community races in Lewes offering 5K, 10K and Half Marathon options with run, race-walk, or a Heavy March carrying a 15 lb pack; routes go through Cape Henlopen State Park and Fort Miles in support of wounded warriors.

A multi distance trail event in Waterford VA on May 9, 2026 that runs through historic village streets, vineyards, trails and unpaved roads. Proceeds support the Waterford Foundation and 5K and 10K finishers receive a shirt and medal.

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.

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.

A four-date series of 10K trail runs in the Pickall Area of Patapsco Valley State Park from May 6 to May 27, 2026, with running time results and options to enter single dates or the full series.

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.