Roberts' performances were impressive as he usually finished races far ahead of his competitors. He won the Barstow to Vegas race four times in a row. He also won the Mint 400 three times and the Baja 500 and the Baja 1000 twice each. After his racing career, he became a top stuntman in the American Film industry. Roberts appeared in the 1971 film On Any Sunday and in the 2005 film Dust to Glory, playing himself.