Duman (February 12, 1929 – June 9, 1968), was an American racecar driver who competed in the USAC Championship Car series and the Indianapolis 500.
Duman was an accomplished driver in sprints and midgets, and won the prestigious Little 500 at Anderson Speedway in 1959 and 1960.Born in Dearborn, Michigan, Duman later moved to Speedway, Indiana and lived in a house practically across the street from the Indianapolis Motor Speedway.
He drove in the USAC Championship Car series from 1961 to 1968.
He had 63 career starts, including the Indianapolis 500 from 1964 to 1968.
Dunman had 27 top-ten finishes in Champ Car competition, with a best finish of third in 1965 at Phoenix.
Duman was fatally injured in a crash at the 1968 Rex Mays Classic at the Milwaukee Mile.