David Luther Roberts is an American retired pole vaulter and practicing physician. He won a silver medal at the 1971 Pan America Games and a bronze at the 1976 Olympics. Domestically he held the NCAA title in 1971–1973 and the AAU title in 1972 and 1974. He set two world records, in 1975 and 1976. David Roberts (United States) set the men's pole vault world record of 5.70 m in Eugene, U.S. on June 22, 1976. It stood 3.9 years, until Władysław Kozakiewicz's 5.72 m on May 11, 1980. Wiki link