Lowest winning score
-13
1989
Highest winning score
+4
1976
Avg winning score
-6.2
17 editions
Avg winning margin
1.3
17 editions
| Year | Tournament | Tour | Winner | Purse |
|---|
| 1990 | Centel Western Open | PGA Tour | Wayne Levi | USD 1,000,000 |
| 1989 | Beatrice Western Open | PGA Tour | Mark McCumber | USD 1,000,000 |
| 1988 | Beatrice Western Open | PGA Tour | Jim Benepe | USD 900,000 |
| 1987 | Beatrice Western Open | PGA Tour | D.A. Weibring | USD 800,000 |
| 1986 | Western Open | PGA Tour | Tom Kite | USD 500,000 |
| 1985 | Western Open | PGA Tour | Scott Verplank | USD 500,000 |
| 1984 | Western Open | PGA Tour | Tom Watson | USD 400,000 |
| 1983 | Western Open | PGA Tour | Mark McCumber | USD 400,000 |
| 1982 | Western Open | PGA Tour | Tom Weiskopf | USD 350,000 |
| 1981 | Western Open | PGA Tour | Ed Fiori | USD 300,000 |
| 1980 | Western Open | PGA Tour | Scott Simpson | USD 300,000 |
| 1979 | Western Open | PGA Tour | Larry Nelson | USD 300,000 |
| 1978 | Western Open | PGA Tour | Andy Bean | USD 225,000 |
| 1977 | Western Open | PGA Tour | Tom Watson | USD 200,000 |
| 1976 | Western Open | PGA Tour | Al Geiberger | USD 200,000 |
| 1975 | Western Open | PGA Tour | Hale Irwin | USD 200,000 |
| 1974 | Western Open | PGA Tour | Tom Watson | USD 200,000 |