Trail Running calendar near Potomac 2025-2026

The Third Winchester Battlefield Half is a running event that includes a half marathon, 10k, and 5k, set in a scenic trail environment. Participants can enjoy a chip-timed race with finisher medals and technical event shirts. The event supports Operation Enduring Warrior, a nonprofit dedicated to ai..

The Miner's Lady 8-Hour is an exciting running event set in the scenic backdrop of Harper's Ferry, WV, where the Blue Ridge mountains meet the Shenandoah River. Participants will tackle a beautiful 10K loop featuring 850 feet of elevation gain, with a mix of single track trails, waterfalls, and cree..

The Slopeside Slumber Party is an exciting running event taking place at Roundtop Mountain Resort on August 16, 2025. Participants can choose between a challenging 3-hour main event, featuring a 1.5-mile loop with a significant elevation gain, or a fun kids' race. Runners will enjoy a fully stocked..

The Inferno 10k is an exciting running event set in a challenging forest trail behind Dirt Farm Brewing in Bluemont, VA. Participants will navigate steep inclines, technical spots, and breathtaking landscapes, making for an exhilarating experience. Runners will receive a finisher medal, a technical..

Trails 4 Tails is an exciting running event taking place at Codorus State Park in Hanover, PA, featuring a 40 Mile Ultra, a 40 Mile Relay, and a 25K+ race. The course consists of a scenic 5.72-mile loop that includes single track trails and beautiful shoreline views around Lake Marburg. Participants..

The 12 Hour Adventure Trail Run, hosted by Athletic Equation, takes place in Prince William Forest Park, Virginia. This annual event challenges participants to cover as much distance as possible within a 12-hour timeframe on a 6.5-mile looped course featuring diverse terrain, including single track..

The Valley View Hard Cider Challenge Half is a running event held at Valley View Farm, featuring challenging courses that combine cross country, trail, and hilly terrain. Participants can choose from a half marathon, 10k, or 5k, with points awarded towards various year-long series. Runners receive a..

The Brandy Station Battlefield 10k is a scenic running event taking place at the historic Brandy Station Battlefield. Participants can enjoy a combination of cross-country and gravel dirt road courses, featuring slight elevation gains. Runners receive a finisher's medal, a technical event shirt, and..

The Conestoga Trail Run - 10 Tough Miles is a challenging trail race held in Holtwood, Pennsylvania, known for its rugged terrain and scenic views. Celebrated as the oldest trail run in the area, this event features a hilly course with rocky paths and stream crossings, making it suitable for experie..

The Full Distance 10k is a scenic trail running event held at Locust Shade Park, featuring a course that includes both trail and paved sections. Participants can enjoy a post-race beer from Full Distance Brewing, and walkers are welcome to join. The event offers a virtual race option for those unabl..

The Rick O'Donnell Memorial 5 Mile Trail Run and Ultra Challenge is an annual running event held in Mount Airy, MD, organized by the Frederick Steeplechasers Running Club. The event features three distinct challenges: a 5-mile trail run, a 4-hour challenge, and an 8-hour ultra challenge, allowing pa..

The Wilderness Run 10k is a scenic cross-country trail race taking place at Wilderness Run Vineyard, located in the historic Chancellorsville and Wilderness battlefields. Participants can enjoy a challenging course with hills, and the event also includes a 5k option. Runners receive a finisher's med..

The Fall Backyard Burn Trail Run at Lake Fairfax Park in Reston, VA, offers an exciting opportunity for runners to enjoy a scenic and challenging course. Participants can choose between a 5-mile or 10-mile race, featuring beautiful singletrack trails with minimal pavement and stunning views of the l..

The Patapsco Valley 50K is an annual trail running event held in Patapsco Valley State Park, Baltimore, MD. In 2025, the race will feature both a 50K and a 25K option, with participants receiving high-quality Brooks event shirts, unique finishers awards, and access to well-stocked aid stations. The..

The Halloween Horror 10k is a thrilling running event taking place at Conway Robinson State Forest Park. Participants can enjoy a scenic trail route that features technical terrain and minor hills. The event includes both a 10k and a 5k option, with points contributing to various series standings.Ru..

The Fire on the Mountain 50K Trail Race, taking place on November 2, 2025, in Little Orleans, MD, offers both 50K and 25K race options. The 50K course features approximately 31.95 miles with seven aid stations, while the 25K course covers about 16.3 miles with three aid stations. Participants must c..

The Fall Backyard Burn Trail Run at Riverbend Park is a scenic trail running event scheduled for November 2, 2025, in Great Falls, Virginia. Participants can choose between two distances: a 5-mile or a 10-mile course, both featuring beautiful riverside singletrack and moderate elevation changes. The..

The MCRRC Stone Mill 50 Mile Run is a premier ultramarathon event taking place in Montgomery Village, Maryland. Scheduled for November 8, 2025, this challenging race attracts runners from various backgrounds, offering a scenic course that showcases the beauty of the local landscape. Participants can..

The Rosaryville Veterans Day Trail Race is an annual running event held at Rosaryville State Park in Upper Marlboro, Maryland. This race features two distance options: a 50K and a 20K, catering to both seasoned ultramarathoners and those looking for a shorter challenge. The event not only promotes p..

The Schaeffer Half Marathon and 10K Trail Run, organized by EX2 Adventures, takes place at the scenic Button Farm in Germantown, MD. This event features a challenging course known for its twisty singletrack and open farm fields, offering participants a unique running experience. The half marathon co..