The Sweaty Backyard Cox Ultra

Concord, United States • 26 Jul 2025

The Sweaty Backyard Cox Ultra is an exciting running event held in the woods of Concord, NC, on the last Saturday of July. This unique Backyard Ultra features a loop course of exactly 4.167 miles, with participants completing as many loops as possible within an hour. Runners must adhere to specific rules, including no personal aid during loops and the requirement to start at the sound of a bell. The event emphasizes camaraderie and endurance, with the last person to finish a loop being declared the winner. Registration opens on February 14, 2025, for those eager to take on this challenging race. Visit the organization's website for the most recent information.

Race information

4 mi
Loop Distance
Visit the organization's website for the most recent information.
Trail runs nearby

The Forney Creek Trail Race is a scenic running event taking place on November 9, 2024, at the Forney Creek Trailhead in Denver, NC. Participants will tackle a 3.5-mile out-and-back course, marked with signs and ribbons for guidance. The race promotes a friendly atmosphere, encouraging runners to sh..

The Unforeseen is an exciting running event taking place at Reedy Creek Nature Preserve in Charlotte, NC, as part of the Kingfisher Ultras series. This unique race features a random distance determined by a dice roll just before the start, ranging from 4.5 to 27 miles, with each lap measuring 2.25 m..

The Lake Norman State Park Trail Race features two challenging events: a 30K and a 50K, set against the scenic backdrop of the park. Participants will navigate smooth, rolling single-track trails with no repeat loops, ensuring a unique experience throughout the race. The 30K course includes approxim..

The Naked Mountain Ultra is an exciting trail running event held at Morrow Mountain State Park in Albemarle, NC. Participants can choose from three distances: 50 miles, 25 miles, and 10 miles, with the 50-mile course featuring two loops that ascend four mountain peaks, totaling approximately 6000 fe..

Perennial: A Time Based Endurance Run is a unique running event held at the scenic Daniel Stowe Botanical Garden in Belmont, NC. Participants can choose to run for 3, 6, or 10 hours on a lap-based course featuring approximately 5K loops along beautiful waterfront trails. This event encourages runner..

The Zelda 4 Hour is an exciting trail race held annually in Midland, North Carolina, at Rob Wallace Park. This four-hour timed event encourages participants to complete as many 2-mile laps as possible on a fast, non-technical course. Registrants receive a t-shirt and a finisher medal, with proceeds ..