| Year | Class Winner | |
| 1948 | 1943 | |
| 1949 | 1943/1944 | |
| 1950 | 1949 | |
| 1951 | 1949 | |
| 1952 | 1949 | |
| 1953 | 1949 | |
| 1954 | 1949 | |
| 1955 | 1949 | |
| 1956 | 1949 | |
| 1957 | 1949 | |
| 1958 | 1949 | |
| 1959 | 1949 | |
| 1960 | 1958 | |
| 1961 | 1949 | |
| 1962 | 1962 | |
| 1963 | ? | |
| 1964 | 1962 | |
| 1965 | 1965 East | |
| 1966 | 1966 East | |
| 1967 | 1965 West | |
| 1968 | 1966 East | |
| 1969 | 1967 East | |
| 1970 | 1970 East | |
| 1971 | 1970 West | |
| 1972 | 65/66 West | |
| 1973 | 1972 West | |
| 1974 | 1972 East | |
| 1975 | 1975 East | |
| 1976 | 1975 East | |
| 1977 | 1971 West | |
| 1978 | 1970 East | |
| 1979 | 1975 East | |
| 1980 | 1970 East | |
| 1981 | 1970 East | |
| 1982 | 1970 East | |
| 1983 | 1980 East | |
| 1984 | 1977 East | |
| 1985 | 1982 East | |
| 1986 | 1977 East | |
| 1987 | 1982 East | |
| 1988 | 1975 West | 1982 East |
| 1989 | 1977 East | 1982 East |
| 1990 | 1979/80 East | 1982 East |
| 1991 | 1980 East | 1983 West |
| 1992 | 1982 East | 1983 West |
| 1993 | 1982 East | 1991 East |
| 1994 | 1981 East | 1991 West |
| 1995 | 1982 East | 1991 West |
| 1996 | 1977 East | 1991 West |
| 1997 | 1982 East | 1991 West |
| 1998 | 1982 East | 1991 West |
| 1999 | 1983 West | 1997 West |
| 2000 | 1982 East | 1991 West |
| 2001 | 1982 East | 1997 West |
| 2002 | 1982 East | 1997 West |
| 2003 | 1979/80 West | 1997/98 East |
| 2004 | 1987 East | 1997/98 East |
| 2005 | 1987 East | 1997/98 East |
| 2006 | 1983 West | 2002 East |
| 2007 | 1991 West | 2002 East |