About This Race
Cirque Series Arapahoe Basin is a 9.4 mile mountain trail race with 2,211 feet of vertical gain, starting at 10,780 feet at Mountain Goat Plaza at the base of Arapahoe Basin, Colorado. The course climbs through the White River National Forest to Little Lenawee peak before descending on world-class singletrack back to the finish, where there is live music and food. The race is capped at 700 runners.
Course & Race Day Details
Awards
Awards ceremony approximately 1:00pm; giveaway at 1:30pm with bib number as ticket.
Race Weekend Logistics
Packet Pickup
Early bib pickup Friday Sept 4, 2026, 3pm-6pm at La Sportiva retail store, 2100 Broadway, Boulder, CO; race day bib pickup 7:45AM-9:45AM at A-Basin.
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