The Dark Side 8 Hour Ultra

Clarksburg, United States • 1 Mar 2025

The Dark Side 8 Hour Ultra is an annual trail running event held at Little Bennett Park in Clarksburg, MD. Participants can run as many laps as they wish on a scenic 5.5-mile loop, primarily on single track trails. This timed event encourages runners to enjoy the outdoors as spring approaches. The race features well-stocked aid stations offering hydration and various food options, including a post-race meal of veggie chili and a taco bar. The event aims to create a welcoming atmosphere for trail running enthusiasts of all levels. Visit the organization's website for the most recent information.

Race information

5 mi
5.5 Mile Loop
Visit the organization's website for the most recent information.
Trail runs nearby

The Little Patuxent River Half Marathon & 10K is a scenic running event held in Columbia, Maryland, featuring a half marathon (13.1 miles), a 10K (6.55 miles), and a new 5K option. The race takes place on the beautiful Patuxent and Wincopin trails, offering a manageable terrain suitable for both beg..

The Froggy Hollow 5 & 9, presented by Altra, is a timed trail ultra event taking place at Little Bennett Regional Park in Clarksburg, MD. Participants can choose from various challenges, including a 5-Hour Challenge, 9-Hour Challenge, and relay options. The course features a scenic 4.3-mile loop, wi..

The Manassas Battlefield Trust 10k is a scenic running event taking place at the historic Manassas National Battlefield, with the start and finish at The Winery at Bull Run. Participants can enjoy a trail run that includes cross-country paths, dirt trails, and boardwalks, while also earning points t..

The Spring Backyard Burn Trail Run at Wakefield Park is part of a series of trail running races in Northern Virginia, featuring 5 and 10-mile courses. Set in a scenic location near the Capital Beltway, the event offers a mix of single-track hiking trails, doubletrack paths, and shallow stream crossi..

The Bigfoot Endurance 5 & 10 Mile Trail Race takes place at Rockburn Branch Park in Elkridge, Maryland. Participants can choose between a 5-mile run, a 10-mile run, or a 2-person relay for the 10-mile distance. The terrain is designed to be easy to moderate, making it suitable for both novice and ex..

The MCRRC Seneca Creek Greenway Trail Marathon & 50K is a running event scheduled for March 8, 2025, in Gaithersburg, Maryland. Participants can choose between a marathon and a 50K race, making it suitable for various levels of endurance runners. The event is organized by the Montgomery County Road ..