12 Hours of Sunlight
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About the race
The 12 Hours of Sunlight is an endurance ski event held on 01/23/2027 at Sunlight Ski Area, 10901 County Rd 117, Glenwood Springs, Colorado. Participants may enter as an individual, a two-person team, or a four-person team. Teams share a bib number. There is no race-day registration.
Competitors complete as many laps as possible on the Sun King uphill route, a repeat climb-and-descent that covers 1.3 mile per lap with about 1,800 vertical feet gained on each ascent. A hydration and fueling station will be located at the start/finish area. Drop-bag areas are available outdoors at the start/finish and indoors in the lodge, about 250 feet from the line. Racer swag is distributed after the event. Top individuals and teams receive prizes and lift tickets for the 2025/26 season.
Required equipment is specified: every racer must carry a headlamp and wear a helmet during all downhill segments, and must use downhill-rated skis or a splitboard. Snowshoes and uphill-only skis are not permitted. Team rules include lap-order requirements: two-person teams must alternate laps to qualify for a final result, and four-person teams must submit and follow a lap order; if the order is broken or a racer drops out, the team's total laps will be tallied at that point. Racers under 18 must have a parent, coach, or guardian present for the entire race. Visit the organization's website for the most recent information.
