Trail Running calendar near Great Falls 2025-2026

The More Miles Last One Standing Challenge is an annual ultramarathon event held in Knoxville, Maryland, featuring a unique "last one standing" format. Participants run a 4.167-mile course, starting each hour on the hour, and must complete the yard within that time to continue. The event also offers..

The Dash Through the Dirt event offers 5k, 10k, and half-marathon races at Carderock Recreation Area in Potomac, MD. The courses run along the scenic C&O Canal Towpath, featuring light gravel trails with minimal elevation changes, ideal for personal records. Participants receive a finisher’s coin, t..

The One Family Brewing 5k & 1-Mile event is a family-friendly race held at One Family Brewing in Lovettsville, VA. Participants can enjoy a scenic cross-country course around the brewery, with the 5k consisting of three laps around the brewery fields. Runners receive a beer, finisher’s medal, techni..

The Old Dominion 100 Mile Endurance Run is a challenging ultramarathon held annually in Virginia, featuring a diverse course that includes various terrains such as pavement, gravel roads, single track trails, and more. Established in 1979, this event emphasizes tradition and community, being entirel..

The Crooked Run Valley 10k is a scenic and challenging trail race held at Sky Meadows in Delaplane, VA. Participants can choose between a 5k or 10k course, with the 10k being two laps of the 5k loop. The event features chip-timed results, finisher medals, and technical event shirts.It supports the c..

The OSS/CIA 50 Mile Night Run is a challenging ultramarathon held in Prince William Forest Park, Virginia, known for its historical ties to the U.S. intelligence community. The race features a 50-mile course primarily on single-track trails, with some fire roads and crossings, run twice to complete..

The Juneteenth Menare Foundation 12k & 6k is a scenic trail race held at Button Farm in Germantown, Maryland, celebrating Juneteenth. Participants can choose between a challenging 12k or a 6k course through the Schaeffer Farm Trails, with scenic and hilly terrain. The event features chip-timed resul..

The Blue Crab Bolt Trail Run at Seneca Creek State Park in Gaithersburg, MD, is set to kick off the 14th annual Blue Crab Bolt Trail Running Series. Participants can choose between a 5K and a 10K course, both offering scenic views of lakes and streams along single-track trails. This event not only p..

The Catoctin 50k Trail Run is a challenging ultramarathon held in Cunningham Falls State Park near Frederick, Maryland. The race features a demanding out-and-back course on rocky, hilly trails through scenic forests and streams, with multiple aid stations providing water, snacks, and electrolytes. P..

The Cacapon 12 Hour Challenge is an exciting endurance running event set in Berkeley Springs, West Virginia. Participants tackle a scenic, moderately to very technical five-mile loop trail, featuring approximately 750 feet of elevation change per loop. The course is well-marked and maintained, with..

On The Rocks Trail Runs is an exciting trail running event taking place at Rocky Ridge County Park in York, PA, featuring multiple race distances: 50K, 33.3K, 16.7K, and 10K. The course is characterized by rolling hills, rocky terrain, and tree roots, providing a challenging experience for participa..

The Sweet Air Trail Race, organized by the Baltimore Road Runners Club, is a thrilling 7-mile race set in Gunpowder State Park. This event features a diverse course that includes rolling hills, fast sections, and water crossings, providing an adventurous experience for participants. The race will cr..

The 53rd Winery 5k & 10k is a scenic cross-country race held at 53rd Winery in Louisa, Virginia. Participants can choose between a 5k or 10k course, which loops around vineyards and winery grounds. The event features chip-timed races, finisher medals, technical shirts, and a complimentary glass of w..

The Leopold’s Preserve 10k is a trail running event held at Leopold’s Preserve in Broad Run, Virginia. Participants can enjoy a mostly flat dirt course with some roots, featuring scenic views of a diverse habitat and wildlife. The race is chip-timed and includes a finisher’s medal and technical even..

The Endless Summer 6-Hour Run is an annual endurance event held in Annapolis, Maryland, organized by the Annapolis Striders. Participants run for six hours on a 2.5-mile loop course that offers scenic views of Chesapeake Bay and the Bay Bridge. The event supports the Semper Fi Fund, with a portion o..

The 868 Estate Vineyards 10k and 5k is a scenic cross-country race held at 868 Estate Vineyards. Participants can choose between a 5k or 10k course around the vineyard property, featuring hills and beautiful views. The event includes a finisher medal, technical event shirt, and a glass of wine.Point..

The Blue Crab Bolt Trail Run at Schaeffer Farms offers an exciting opportunity for runners to experience the beautiful trails of Germantown, MD. Participants can choose between a 5K and a 10K course, featuring well-maintained paths with twists, stream crossings, and moderate technical challenges. Th..

The Blue Crab Bolt Trail Run at Little Bennett Regional Park in Clarksburg, MD, offers an exciting outdoor experience for runners of all levels. Set in a picturesque 3,600-acre park with over 20 miles of trails, participants can choose between a 5K (3.7 miles) and a 10K (6.2 miles) course, both feat..

The DHRT 50K is an exciting trail running event set in King George, Virginia, taking place on August 2, 2025. This challenging race traverses the scenic Dahlgren Railroad Heritage Trail, offering participants a flat and well-maintained course primarily shaded by trees. Runners will face the added ch..

The Dahlgren Heritage Rail Trail 50K is a challenging ultramarathon held on August 2, 2025, in King George, Virginia. The race takes place entirely on the flat, well-maintained Dahlgren Railroad Heritage Trail, featuring mostly shaded, dirt, grass, and gravel surfaces. Participants have 8 hours to c..