1968 German Open Championships1969 German Open Championships1970 German Open Championships1971 Grand Prix German Open1974 German Open (tennis)1975 Grand Prix German Open1976 German Open (tennis)1977 German Open (tennis)1985 Grand Prix German Open (tennis)1986 Grand Prix German Open1990 ATP German Open1991 ATP German Open1992 ATP German Open1993 ATP German Open1994 ATP German Open1995 ATP German Open1996 Panasonic German Open1997 ATP German Open1998 ATP German Open1999 ATP German Open2000 Hamburg Masters2001 Hamburg Masters2002 Hamburg Masters2003 Hamburg Masters2004 Hamburg Masters2005 Hamburg Masters2006 Hamburg Masters2008 Masters Series Hamburg2011 International German Open2012 International German Open2013 International German Open2014 International German Open2015 German Open