| Winners | Year | Rating Sort descending | Format |
|---|---|---|---|
| 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 |
| Sandy Groff | 1977 | class a | singles |
| Dave Talbott | 1978 | class a | singles |
| Arshad Malik | 1979 | class a | singles |
| Malcom Jensen | 1980 | class a | singles |
