Rosaryville Half Marathon

The Capital Backyard Ultra is an endurance running event held in Lorton, Virginia, featuring a unique format where participants run a 4.167-mile loop every hour until only one runner remains. The race supports experienced backyard ultrarunners aiming to push their limits, with a maximum of 60 partic..

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 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 MD Heat Trail Race, held in Elkridge, Maryland at the Patapsco Pickall Area, offers challenging trail running options of 25K and 50K distances. The course features rolling single-track trails with over 2,000 feet of elevation gain, including technical rocky sections, two river crossings, and a s..

The Rosaryville Veterans Day Trail Race, held annually at Rosaryville State Park in Upper Marlboro, Maryland, offers challenging 50K and 20K trail runs through scenic wooded trails and meadows. The 50K consists of 3.25 loops on a 9.5-mile single-track perimeter trail with rolling hills totaling abou..

The Fall Backyard Burn at Laurel Hill is a trail running event held at Laurel Hill Park in Lorton, Virginia, just south of the Capital Beltway. Participants can choose between a 5.4-mile course (one lap) or a 10-mile course (two laps), both featuring a mix of forested singletrack and open meadows on..