rodeo event in which a mounted cowboy chases a full-grown steer, dives from his horse on top of the animal, grasps its horns, digs his heels in the ground to bring the animal to a stop, and twists it to the ground. The event is timed from the moment a barrier in front of the cowboy is released to the moment the steer is judged down—i.e., flat on its side with all four legs and head in the same direction and the cowboy still in contact. The contestant with the lowest elapsed time wins. Each bulldogger has a partner, called a hazer, who rides alongside the steer and keeps it headed in a straight line while the bulldogger makes his approach.