Caleb Moore was attempting a backflip Jan. 24 in the freestyle event when the skis on his 450-pound snowmobile caught the lip of the landing area, sending him flying over the handlebars. Moore landed face first into the snow with his snowmobile rolling over him.
Moore stayed down for quite some time, before walking off with help and going to a hospital to treat a concussion. Moore developed bleeding around his heart and was flown to a hospital in Grand Junction for surgery. The family later said that Moore, of Krum, Texas, also had a complication involving his brain.
Colten Moore was injured in a separate crash that same night. He suffered a separated pelvis in the spill.