 This is J.C. Trujillo. In honor of Danny Freeman, Frontier Days historian, KYCA presents another Frontier Days story from his book, The World's Oldest Rodeo. Prescott's first official cowboy tournament was held on July 4, 1888. There is no question in my mind that it is indeed the world's oldest formalized rodeo. Trivial Pursuit did us a favor by adding the words First Formalized to its cards. I don't think anyone can argue at that point. And now a word from a Frontier Days friend.