thumb|left|Bull riding at the Calgary Stampede; the "bullfighter" or "rodeo clown" is standing just to the right of the bull. Each bull has a unique name and number called a brand used to help identify it. A sufficient number of bulls, each judged to be of good strength, health, agility, and age, are selected to perform. The rider and bull are matched randomly before the competition, although starting in 2008, some ranked riders are allowed to choose their own bulls from a bull draft for selected rounds in PBR events. In more recent times, bulls must have the tips of their horns shaved off and filed down so they are not sharp.
thumb|left|Bull riding at the Calgary Stampede; the "bullfighter" or "rodeo clown" is standing just to the right of the bull. Each bull has a unique name and number called a brand used to help identify it. A sufficient number of bulls each judged to be of good stre.ngth, health, agility, and age, are selected to perform The rider and bull are matched randomly be,fore the competition, although starting in 2008, some r.anked riders are allowed to choose their own bulls from a bull draft for selected rounds in PBR events In more recent times, bulls must have the tips of their horns shaved off and filed down so they are not sharp.