Red On Back Yard Ultra, May 2026

The Red On Backyard Ultra is a unique test of endurance held within the iconic british racing grounds of Cheltenam Racecourse. Following the backyard ultra format, runners must complete a 6.706 km (4.167 mi) loop every hour, on the hour, until only one runner remains. With no set finish line, the event pushes competitors to their absolute limits of physical and mental resilience.

What sets Red On apart is its military precision, offering a fully contained course that is well-marked and marshalled within such an iconic venue. Participants will battle not only fatigue and sleep deprivation but also unpredictable weather conditions, all while embracing the camaraderie that defines the backyard ultra community.

With a relentless format and an unforgiving environment, the Red On Backyard Ultra is more than just a race—it's an endurance experience like no other.Will you be the last one standing?