Starting at 10,000-plus feet of elevation, immersed in the magic of the Colorado Rockies, the Grand Prix cyclists elevate their game to Race Across the Sky at Stop #4 of 6: the Stages Cycling Leadville Trail 100 MTB in Leadville, Colorado. After winning each of the first three races, Leadville favorite Keegan Swenson looks to continue his series dominance at this iconic mountain bike race — but the men’s field isn’t here to play.