Track-and-field event of jumping for height. The equipment includes a semicircular runway allowing an approach run of at least 49 ft (15 m), the raised bar and its vertical supports, and a cushioned landing area. Jumpers must leave the ground from one foot. Three failed jumps at a height result in disqualification. Early jumping styles, including the near-erect scissors jump and the facedown Western roll-and-straddle, were largely superseded from 1968 by the faceup Fosbury flop, named for its leading proponent, the U.S. jumper Dick Fosbury.