Trail Running calendar near Lorton 2024-2025

We have found 33 Trailruns within 80 miles of Lorton. See below where and when you can find the races.

The Dark Side 8 Hour Ultra is an exciting trail running event held at Little Bennett Park in Clarksburg, MD. Participants can run a 5.5-mile loop on scenic single track trails for a total of eight hours, making it suitable for both competitive runners and those looking to enjoy the outdoors. The eve..

No Man's 50K is a unique trail running endurance challenge designed exclusively for women, with distances of 25K and 50K. Established in 2016, the event aims to promote female participation in trail races, inspired by a young girl's observation about the lack of women in such events. The race featur..

April 2025

The Bull Run Run 50 Miler is a scenic trail running event held in Clifton, Virginia, that covers a challenging 50-mile course through a linear park alongside the Occoquan River and Bull Run. Celebrating its 30th edition in 2024, the race showcases the area's natural beauty, particularly during sprin..

The Sheetz-to-Sheetz Trail Run is a unique 14-mile untimed running event held in King George, Virginia, designed to benefit local charities. Participants start at one Sheetz convenience store and finish at another, traversing the scenic Dahlgren Railroad Heritage Trail. The course features a mix of ..

The Chopawamsic Challenge is an exciting 50K and 100K trail race held in Prince William Forest Park, Virginia. This event offers a unique opportunity for runners to test their endurance on scenic trails, with over 90% of the course consisting of single track. Participants will navigate a looped cour..

The C&O Canal 100 is a challenging 100-mile ultramarathon set along the scenic C&O Canal towpath in Maryland. The race features a unique course layout consisting of one approximately 40-mile loop and two 30-mile loops, making it suitable for both novice and experienced runners. Participants will enc..

Run to Remember is a commemorative running event held at Piney Run Park in Sykesville, MD, featuring multiple race options including a 50K, 50K Relay, 25K, 5 Miler, and an 8 Hour Challenge. This event honors the memory of cherished members lost, encouraging participants to challenge themselves in th..

May 2025

The Massanutten Mountain Trails 100 Mile Run is a challenging ultra-marathon set in the scenic Massanutten Mountains of Virginia's Shenandoah Valley. This rugged race features a demanding course with over 18,000 feet of elevation gain, requiring participants to navigate rocky terrain and steep climb..

The Capital Backyard Ultra is a unique endurance running event held in Lorton, Virginia, designed for a maximum of 60 participants. Runners compete on a 4.167-mile loop, starting on the hour, with the goal of being the last runner standing. The event emphasizes camaraderie and support, featuring pro..

The More Miles Last One Standing Challenge is an exciting annual running event held in Knoxville, MD, featuring a unique "last one standing" format. Participants tackle a 4.167-mile course, completing laps on the hour for as long as they can. The event culminates when only one runner remains capable..

June 2025

The OSS/CIA 50 Mile Night Run is a unique trail running event held in Prince William Forest Park, Virginia, which has historical significance as the training ground for the Office of Strategic Services (OSS), the precursor to the CIA. Participants will tackle a challenging 50-mile course consisting ..

The Old Dominion 100 Endurance Run, established in 1979, is a challenging ultramarathon that takes place on the first weekend in June. Runners navigate a diverse course featuring various terrains, including pavement, gravel roads, single track trails, and streams. Participants aim to complete the ra..

August 2025

The MD Heat Trail Race, held at the Patapsco Pickall Area in Elkridge, MD, offers both 25K and 50K trail running options. This event features a challenging course with rolling single track, technical sections, and two river crossings, providing a mix of hiking and running opportunities. Participants..