Kretz, Sr. largely dominated the sport for over a decade. He won the first 200-mile Savannah Nationals at Langhorn (1936, 1937, 1938, 1940, and 1948) and the Laconia Classic (1938 and 1945).
He raced a 100-lap TT race in Ascot Park, Gardena, California, winning the lap money, the heat race, and the trophy race. Ed “Iron Man” Kretz retired from racing in 1959.