The Sweaty Backyard Cox Ultra

Concord, United States • 26 Jul 2025

The Sweaty Backyard Cox Ultra is an endurance running event held in Concord, North Carolina, on July 26, 2025. It features a backyard ultra format, where participants run a 4.167-mile loop every hour, with the race continuing until only one runner remains who can complete the loop within the hour. The event serves as a qualifier for the 2026 Capital Backyard Ultra, with the winner earning their entry fee for that race. Participants must adhere to strict rules, including starting on time, completing each loop within an hour, and not leaving the course except for restroom breaks. The race emphasizes stamina, consistency, and mental toughness. Visit the organization's website for the most recent information.

Race information

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

The Momentus BackYard Ultra is an endurance trail running event held at the scenic Williams Rushing Farm in Monroe, North Carolina. Participants tackle a challenging 4.167-mile loop every hour, on the hour, continuing until only one runner remains, testing both mental and physical limits. The course..

The Inferno Endurance Run is an endurance running event held at Jesse Helms Park in Monroe, North Carolina. Participants run on a 3.7-mile loop featuring mixed terrain including paved walkways, gravel, grass paths, and some single-track sections. The course is mostly flat with about 250 feet of elev..

The Petal to the Medal Endurance Event is an inclusive trail running challenge held at the Daniel Stowe Conservancy in Belmont, North Carolina. Participants have up to eight hours to complete as many 5K loops as they wish on a scenic trail course. Designed for both experienced trail runners and newc..

The Black Copperhead Sting 50K is an ultramarathon held at Rocky Branch Park in Belmont, North Carolina, organized by Dirty Wolf Racing, LLC. This event features multiple distances including 50K, 25K, and 5K, with the 50K course consisting of a scenic loop through the Catawba Thread Trail, Beaver Ru..

Flint's Fabulous 5K is a charitable running event held in Kannapolis, North Carolina, supporting Leashes of Valor, a nonprofit that provides no-cost service dogs to post-9/11 veterans. The 5K race offers participants the option to run or walk, with registration fees and additional donations directly..

Psychoactive: A Last Runner Standing is an endurance running event held at Blackberry Ridge Farm near Charlotte, NC. Participants run on a 1.25-1.5 mile loop through trails, gravel roads, and fields, with the race continuing until only one runner remains. The event emphasizes mental and physical cha..