Trail Running calendar near Great Falls 2025-2026

The Founders Half Marathon in Potomac on December 14 showcases a scenic 13.1 mile out and back along the C&O Canal Towpath and serves as race two of the DCRR Snowball Series. USATF certified with post race snacks and online registration.

Join the Anniversary Run 15K at Quiet Waters Park, a scenic trail race that wraps up the Annapolis Striders Championship Series. Finish at Sassafras Pavilion for awards, a lively community vibe, and volunteer opportunities.

Join the Food for Others 5k and 10k at Leesylvania State Park on Jan 17, 2026 for scenic trail and paved sections, small hills, and a festive finish with tech shirts and medals. Proceeds benefit the charity and a virtual option is available..

Run the Mid Maryland Trail Festival at Rockburn Branch Park in Elkridge, MD, a scenic 50K on wooded trails made up of six loops of about 5.18 miles each. Solo runners or teams up to six can tackle the full distance or share loops in a relay..

Patriotic Pursuit at Williamsport Park offers 5k, 10k and half runs along a flat scenic C&O Canal Trail beside the river. Chip timed with finisher medal, tech shirt and virtual option supporting Semper Fi & America's Fund.

Run the Dahlgren Trail Half Marathon in King George VA on January 31, 2026. Flat, smooth former railroad bed, aid stations and a custom finisher medal while supporting local trail volunteers.

Enjoy a scenic trail run along the Little and Middle Patuxent rivers in Columbia, Maryland. Choose from a half marathon, 10K or 5K on Jan 31 to Feb 1, 2026 at the Guilford Pratt Truss Bridge for a tame and rewarding trail experience.

Run a timed trail ultra at Little Bennett Campground on scenic 4.4 mile loops, choosing 5 or 9 hour solo or relay challenges. Enjoy aid stations, Altra shoe demos, a long sleeve race top and a post race chili bar while supporting Montgomery..

Challenge the figure 8 trails at Lake Anna State Park in the 18th annual ICY 8, featuring an 8 hour adventure trail run and a Half Marathon+ on a looped course. Runners and hikers are welcome with scenic single and double track and generous..

Hit the scenic hilly 5k or 10k across historic Chancellorsville and Wilderness battlefields on February 14, 2026. Walkers welcome, proceeds benefit Semper Fi and America's Fund, and finishers enjoy a beer or wine plus a commemorative medal.

Take on a technical trail at Paradise Springs with rocky riverside singletrack in 5k or 10k. Finishers get a medal, technical shirt and a glass of wine while supporting the John P. Mayhugh Foundation.

Explore a scenic loop around Saint Marys Lake and Salem Forest with 17K, 34K and 50K options on mostly single track trails and about 500 ft of climb per lap. Limited to 100 runners, with pancakes served at the finish.

Hit the trails at Rockburn Branch Park for the Bigfoot Endurance 5 and 10 mile trail race with solo or relay options and easy to moderate terrain. Enjoy a long sleeve race shirt, finisher medal, and support Parkinsons research.

Run scenic but technical forest loops at Conway Robinson State Forest on March 7, 2026 with 5k and 10k options plus a virtual race. Support Lost Dog and Cat Rescue and earn a finisher coin, tech shirt and chip timing.

Test your limits at the Dark Side 8 Hour Ultra in Little Bennett Park, Clarksburg. You have eight hours to run as many 5.5 mile loops on scenic single track trails as you like, with hearty on course aid and a post race meal to refuel.

Tackle the MCRRC Seneca Creek Trail Marathon or push on to the 50K in scenic Seneca Creek State Park. Expect hilly muddy rocky single track and a choose your distance finish for a customizable trail challenge.

No Man's 50K is a women only trail race in Triangle, VA offering 50K and 25K across two scenic 15 mile loops. Limited to 120 entrants, the course is mostly single track with stocked aid stations.

Join the Smoketown Brewery 5k and 10k on March 8 for flat gravel out and back routes, with a virtual option and walkers welcome. Finishers get a medal, tech shirt, chip timing and a beer while supporting Wear Blue Run to Remember.

Blazing Saddles at Codorus State Park on March 14, 2026 offers 8 mile, 25K and 50K trail loops over singletrack and horse trails with runnable hills, mud, and possible snow. Proceeds support a local animal rescue.

Run a scenic cross country course at Twisted Oak Farm Brewery in White Post with 4k and 8k. Enjoy chip timing, a finisher medal, a technical shirt and a free beer, or run virtually if you cannot make it.