| Winners | Year | Rating | Format Sort descending |
|---|---|---|---|
| R. L. Custer | 1970 | class a | hardball |
| R. L. Custer | 1971 | class a | hardball |
| G. C. Peny | 1972 | class a | hardball |
| C.W. Dawson | 1973 | class a | hardball |
| S. Rosenblum | 1974 | class a | hardball |
| D. A. Talbott | 1975 | class a | hardball |
| D. A. Talbott | 1976 | class a | hardball |
| J. A. MacColl | 1977 | class a | hardball |
| S. Rosenblum | 1978 | class a | hardball |
| S. Rosenblum | 1979 | class a | hardball |
| J. Carlson | 1980 | class a | hardball |
| P. Parker | 1970 | class b | hardball |
| P.Wolff | 1971 | class b | hardball |
| W. Smyth | 1972 | class b | hardball |
| A.B. Martin | 1973 | class b | hardball |
