What goes up must come down. But just to make sure, Uncle Clyde's Run and Slide race put that theory to the test on the Purgatory tubing hill last weekend. The second annual relay race, hosted by the Durango Running Club, included two heats, a 60-minute and a 90-minute version. The race pitted teams of two against each other to see who could crank out the most laps without throwing in the towel, or up their breakfast. As always, costumes were not required but highly encouraged – because if you're vying for king or queen of the (tubing) hill, you want to look the part.