| Past champions | |||
| Year | Winner | Score | Course |
| 1999 | Karrie Webb | 274 (14-under) | Moon Valley CC, Phoenix |
| 1998 | x-Liselotte Neumann | 279 (13-under) | Moon Valley CC, Phoenix |
| 1997 | x-Laura Davies | 277 (15-under) | Moon Valley CC, Phoenix |
| 1996 | Laura Davies | 284 (8-under) | Moon Valley CC, Phoenix |
| 1995 | Laura Davies | 280 (12-under) | Moon Valley CC, Phoenix |
| 1994 | Laura Davies | 277 (15-under) | Moon Valley CC, Phoenix |
| 1993 | Patty Sheehan | 275 (17-under) | Moon Valley CC, Phoenix |
| 1992 | Danielle Ammaccapane | 279 (13-under) | Moon Valley CC, Phoenix |
| 1991 | Danielle Ammaccapane | 283 (9-under) | Moon Valley CC, Phoenix |
| 1990 | Pat Bradley | 280 (12-under) | Moon Valley CC, Phoenix |
| 1989 | Allison Finney | 282 (6-under) | Moon Valley CC, Phoenix |
| 1988 | Ok-Hee Ku | 281 (7-under) | Moon Valley CC, Phoenix |
| 1987 | Pat Bradley | 286 (6-under) | Moon Valley CC, Phoenix |
| 1986 | Mary Beth Zimmerman | 278 (10-under) | Arizona Biltmore CC, Phoenix |
| 1985 | x-Betsy King | 280 (8-under) | Arizona Biltmore CC, Phoenix |
| 1984 | Chris Johnson | 276 (12-under) | Arizona Biltmore CC, Phoenix |
| 1983 | y-Anne-Marie Palli | 205 (14-under) | Arizona Biltmore CC, Phoenix |
| 1982 | x-Beth Daniel | 278 (10-under) | Hillcrest GC, Phoenix |
| 1981 | Patty Hayes | 277 (15-under) | Hillcrest GC, Phoenix |
| 1980 | Jan Stephenson | 275 (13-under) | Hillcrest GC, Phoenix |
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