sentences:  His personal best jump was 17.33 metres, achieved in September 1988 in Düsseldorf.This result places him sixth on the German all-time performers list, behind Ralf Jaros, Charles Friedek, Volker Mai, Dirk Gamlin and Peter Bouschen.Zinser became West German champion in 1989, and also won national silver medals in 1985, 1986 and 1988.