Stone Mill 50 Mile Run

The Dark Side 8 Hour Ultra is an annual trail running event held at Little Bennett Park in Montgomery County, 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 Paradise Springs 10k is a challenging trail running event held at Hemlock Overlook Park, featuring a scenic course with significant elevation changes and technical sections. Participants can enjoy a glass of wine from Paradise Springs Winery post-race, along with a finisher medal and a technical..

The Spring Backyard Burn Trail Run at Wakefield Park is a thrilling event scheduled for March 2, 2025, featuring both 5-mile and 10-mile trail races. Set in Annandale, Virginia, the course offers a mix of scenic single-track and double-track trails, along with shallow stream crossings, making it an..

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 two challenging distances: a marathon and a 50K. This event is organized by the Montgomery County Road Runners Club (MCRRC) and aims to prov..

The Perfect Day 50K is a unique endurance running event held at Massanutten's Western Slopes, where participants run a 5K every hour for 10 hours. This event allows individuals and teams to compete, with options for teams of two or three to alternate loops. Each participant must complete the 5K loop..