Endurance athletes will be out in full force at Sunlight Mountain Resort for Saturday’s Glenwood Insurance Endurance Challenge, a 12-hour hike-and-ski race for individuals and teams.

For the third consecutive year, Endurance Challenge is throwing down the gauntlet: Hike up the mountain, race back down – and do it again, and again – for 12 hours. The person or team that accumulates the most laps wins.

Sunlight Mountain Resort Assistant Manager of Base Operations Sheila Maurer expects more than 200 people to turn out for this year’s event, which begins at 8 a.m. and finishes up at 8 p.m.

From a base elevation of 8,225 feet, the course climbs to 9,708 feet, a change of 1,483 feet over a distance of about one mile, with a 27 percent grade.

Racers can use skins, stabilizers or simply hike to the top of the run called Rebel. From there, it’s all downhill – skiing, snowboarding, snowshoeing, hiking or running – on the neighboring run, Beaujolais. Back at the base, solo racers repeat the process as many times as they can.

Racers will be competing in different categories – solo, as part of a duo team, four-person team or a fire drill team. Duo and four-person teams may divvy up how their members tackle the course as they see fit.