There are a few different American Sports such as Rodeo in Texas which are Official State Sports. Others include Alaska Dog Mushing (racing with a Husky and Sled), Colorado Pack Burro Racing (racing a donkey with supplies up a mountain), and Cowboy Polo (originally started in New Mexico but now only played in Montana).
PRCA Rodeo World Championships (Years): 2013
Colorado Pack Burro Racing
Western Pack Burro Ass-ociation