Ultra Running Experience Required

Due to the difficulty and remoteness of this race, prior ultra running experience is REQUIRED for 50K participants and trail running experience at high altitude is highly recommended for 22K participants. These courses are absolutely stunning and equally challenging. For those registering for the 50K, previous results will be checked and if results are not listed in ultrasignup, please be prepared to show racing history. We do make exceptions to this rule, but please email and get approval before registering.