Devils Den Ultra

The Devils Den Ultra returns to Bradford, Vermont on October 10th through the 11th in 2026 for another challenging adventure against rugged Vermont trails and varying race lengths that cater to endurance runners of all levels. Runners will face a course steeped in folklore and tradition as they take on the Devil's Den Ultra on Wright’s Mountain, with distances ranging from a 30-hour ultra marathon to a more manageable but no less grueling 12-hour event and a shorter yet still demanding 9.7K race. Each year since its inception, this unique event has drawn participants looking for an intense test of physical endurance and mental fortitude.
On the morning of October 10th in Bradford, Vermont, temperatures will hover around the average high of 15.9°C with a low expected to dip down as far as 5.7°C by dawn. The weather conditions typically feature light precipitation at an average rainfall of about 2.9mm and humidity levels averaging 77%, making it important for runners to stay prepared for both dry and damp trail surfaces during their race day experience. Visibility will be clear, with sunlight lasting approximately seven hours and twenty-six minutes throughout the event.
The course itself is a challenging loop on Wright’s Mountain that offers participants an engaging mix of terrain including steep ascents at the beginning followed by technical downhill sections through dense woodland areas. The 10K route loops around private property but only uses public trails during race times, ensuring safety and compliance with local landowner agreements. Runners will encounter one road crossing near the start line before heading back into the woods to navigate their way toward completing each lap of this demanding circuit.