Special Coverage:
Clearinghouse:
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Western Idaho Open Champions
| Year | Western Winner | City |
| 1964 | Richard S. Vandenburg | Boise, ID |
| 1965 | Bert Germalm | Blackfoot, ID |
| 1966 | Richard S. Vandenburg | Twin Falls, ID |
| 1967 | A. B. Ellis | Nampa, ID |
| 1969 | T.C. Hartwell | Twin Falls, ID |
| (tie) | Max Wennstrom | Boise, ID |
| (tie) | Lowell Seaich | Rexburg, ID |
| (tie) | Ed Trappen | Twin Falls, ID |
| 1970 | Ed Trappen | Twin Falls, ID |
| 1971 | Carroll Powell | Emmett, ID |
| 1972 | Kenneth Sanderson | Boise, ID |
| 1973 | T.C. Hartwell | Twin Falls, ID |
| 1974 | Peter D. Hess | Reno, NV |
| 1975 | Jim Mulder | Logan, UT |
| 1976 | William Whitacre | Boise, ID |
| 1979 | Todd Q. Miller | Salt Lake City, UT |
| 1982 | Eric Tangborn | Tacoma, WA |
| 1984 | Peter Cencik | Boise, ID |
| 1987-1 | Larry R. Parsons | Boise, ID |
| 1987-12 | Leslie R. Colin | Boise, ID |
| 1988 | Michael A. Henderson | Boise, ID |
| 1990 | Larry R. Parsons | Boise, ID |
| 1991 | T. C. Hartwell | Twin Falls, ID |
| (tie) | Christopher A. Pentico | Mountain Home, ID |
| 1992-2000 no tournament |
| 2001 | Herman B. Chiu | Corvallis, OR |
| (tie) | Matthew C. Campbell | Moscow, ID |
| 2002-7 | Randy D. Zumbrunnen | Salt Lake City, UT |
| 2002-9 | Beenish Bhatia | NJ |
| 2003 | Gary Owen | WY |
| 2004 | Hans M. Morrow | Pocatello, ID |
| (tie) | Steven Bryan Bieler | Boise, ID |
| 2006 | Kenrick C. Barkell | Boise, ID |
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