Dieter Schubert was a member of the renowned Einheit Dresden four, usually rowing third seat. With Frank Rühle, Frank Forberger, and Dieter Grahn, the four men from Dresden competed together for 11 years and were never beaten in international competition. They won the Olympic gold medal in the coxless fours in 1968 and 1972. At the World Championships, they were victorious in 1966 and 1970, and were European champions in 1967 and 1971. The crew was named Team of the Year in 1968 and 1972. They also won the East German national title 1965-68 and 1970-71, Schubert also won a title with the coxed eights in 1968. In 1969 Schubert replaced Peter Kremtz in the coxed fours, and won another East German title.
Schubert played handball and football (soccer) in his youth. He also trained as a fitter, but later studied sports at the DHfK Leipzig. He then became a women’s rowing coach and sports teacher in the former GDR. After reunification, he became an insurance agent.