| Past champions | |||
| Year | Winner | Score | Course |
| 1999 | Juli Inkster | 268 (16-under) | DuPont CC, Wilmington, Del. |
| 1998 | Se Ri Pak | 273 (11-under) | DuPont CC, Wilmington, Del. |
| 1997 | x-Chris Johnson | 281 (3-under) | DuPont CC, Wilmington, Del. |
| 1996 | y-Laura Davies | 213 (Even) | DuPont CC, Wilmington, Del. |
| 1995 | Kelly Robbins | 274 (10-under) | DuPont CC, Wilmington, Del. |
| 1994 | Laura Davies | 279 (5-under) | DuPont CC, Wilmington, Del. |
| 1993 | Patty Sheehan | 275 (9-under) | Bethesda CC, Bethesda, Md. |
| 1992 | Betsy King | 267 (17-under) | Bethesda CC, Bethesda, Md. |
| 1991 | Meg Mallon | 274 (10-under) | Bethesda CC, Bethesda, Md. |
| 1990 | Beth Daniel | 280 (4-under) | Bethesda CC, Bethesda, Md. |
| 1989 | Nancy Lopez | 274 (14-under) | Nicklaus GC, Kings Island, Ohio |
| 1988 | Sherri Turner | 281 (7-under) | Nicklaus GC, Kings Island, Ohio |
| 1987 | Jane Geddes | 275 (13-under) | Nicklaus GC, Kings Island, Ohio |
| 1986 | Pat Bradley | 277 (11-under) | Nicklaus GC, Kings Island, Ohio |
| 1985 | Nancy Lopez | 273 (15-under) | Nicklaus GC, Kings Island, Ohio |
| 1984 | Patty Sheehan | 272 (16-under) | Nicklaus GC, Kings Island, Ohio |
| 1983 | Patty Sheehan | 279 (9-under) | Nicklaus GC, Kings Island, Ohio |
| 1982 | Jan Stephenson | 279 (9-under) | Nicklaus GC, Kings Island, Ohio |
| 1981 | Donna Caponi | 280 (8-under) | Nicklaus GC, Kings Island, Ohio |
| 1980 | Sally Little | 285 (3-under) | Nicklaus GC, Kings Island, Ohio |
| 1979 | Donna Caponi | 279 (9-under) | Nicklaus GC, Kings Island, Ohio |
| 1978 | Nancy Lopez | 275 (13-under) | Nicklaus GC, Kings Island, Ohio |
| 1977 | Chako Higuchi | 279 (9-under) | Bay Tree, N. Myrtle Beach, S.C. |
| 1976 | Betty Burfeindt | 287 (5-under) | Pine Ridge GC, Baltimore |
| 1975 | Kathy Whitworth | 288 (4-under) | Pine Ridge GC, Baltimore |
| 1974 | Sandra Haynie | 288 (4-under) | Pleasant Valley CC, Sutton, Mass. |
| 1973 | Mary Mills | 288 (4-under) | Pleasant Valley CC, Sutton, Mass. |
| 1972 | Kathy Ahern | 293 (1-over) | Pleasant Valley CC, Sutton, Mass. |
| 1971 | Kathy Whitworth | 288 (4-under) | Pleasant Valley CC, Sutton, Mass. |
| 1970 | x-Shirley Englehorn | 285 (7-under) | Pleasant Valley CC, Sutton, Mass. |
| 1969 | Betsy Rawls | 293 (1-over) | Concord GC, Kiameshia Lake, N.Y. |
| 1968 | x-Sandra Post | 294 (2-over) | Pleasant Valley CC, Sutton, Mass. |
| 1967 | Kathy Whitworth | 284 (8-under) | Pleasant Valley CC, Sutton, Mass. |
| 1966 | Gloria Ehret | 282 (2-under) | Stardust CC, Las Vegas |
| 1965 | Sandra Haynie | 279 (5-under) | Stardust CC, Las Vegas |
| 1964 | Mary Mills | 278 (6-under) | Stardust CC, Las Vegas |
| 1963 | Mickey Wright | 294 (10-over) | Stardust CC, Las Vegas |
| 1962 | Judy Kimball | 282 | Stardust CC, Las Vegas |
| 1961 | Mickey Wright | 287 | Stardust CC, Las Vegas |
| 1960 | Mickey Wright | 292 | Sheraton Hotel CC, French Lick, Ind. |
| 1959 | Betsy Rawls | 288 | Sheraton Hotel CC, French Lick, Ind. |
| 1958 | Mickey Wright | 288 | Churchill CC, Pittsburgh |
| 1957 | Louise Suggs | 285 | Churchill CC, Pittsburgh |
| 1956 | x-Marlene Hagge | 291 | Forest Lake CC, Detroit |
| 1957 | Beverly Hanson | 220 | Orchard Ridge CC, Ft. Wayne, Ind. |
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