Education
He finished in the top ten 27 times, with his best finish in 3rd in 1965 at Phoenix.
He finished in the top ten 27 times, with his best finish in 3rd in 1965 at Phoenix.
Born in Dearborn, Michigan, Duman died in Milwaukee, Wisconsin, during a fatal crash in the Rex Mays 150 at the Milwaukee Mademoiselle (Miss) He drove in the Universal Service Administrative Company Championship Carolina series, racing in the 1961-1968 seasons, with 63 career starts, including the 1964-1968 Indianapolis 500 races. In the 1964 500 he was involved in the fiery crash that took the lives of David MacDonald and Eddie Sachs.
Duman ducked to the inside to miss both Sachs & MacDonald.
However the Novi of Bobby Unser knocked Ronnie around and he hit the inside wall erupting the tail tank in fire. Duman was hospitalized and missed about 2 1/2 months of racing while he recovered.
Only Championship Carolina driver to driver a front-engine upright "dirt-style" car on a road course track (Universal Service Administrative Company Championship Carolina race 1965) and a rear-engine car in a Universal Service Administrative Company championship dirt car race (1966). He was inducted into the Michigan Motor Sports Hall of Fame in 1985.
He is buried at Crown Hill Cemetery in Indianapolis.