| 2006 | State Farm Classic | LPGA Tour | Annika Sorenstam | USD 1,300,000 |
| 2005 | State Farm Classic | LPGA Tour | Pat Hurst | USD 1,300,000 |
| 2004 | State Farm Classic | LPGA Tour | Cristie Kerr | USD 1,200,000 |
| 2003 | State Farm Classic | LPGA Tour | Candie Kung | USD 1,200,000 |
| 2002 | State Farm Classic | LPGA Tour | Patricia Meunier-Lebouc | USD 1,100,000 |
| 2001 | State Farm Classic | LPGA Tour | Kate Golden | USD 1,000,000 |
| 2000 | State Farm Rail Classic | LPGA Tour | Laurel Kean | USD 900,000 |
| 1999 | State Farm Rail Classic | LPGA Tour | Mi Hyun Kim | USD 775,000 |
| 1998 | State Farm Rail Classic | LPGA Tour | Pearl Sinn-Bonanni | USD 700,000 |
| 1997 | State Farm Rail Classic | LPGA Tour | Cindy Figg-Currier | USD 600,000 |
| 1996 | State Farm Rail Classic | LPGA Tour | Michelle McGann | USD 575,000 |
| 1995 | State Farm Rail Classic | LPGA Tour | Mary Beth Zimmerman | USD 550,000 |
| 1994 | State Farm Rail Classic | LPGA Tour | Barb Mucha | USD 525,000 |
| 1993 | State Farm Rail Classic | LPGA Tour | Helen Dobson | USD 500,000 |
| 1992 | Rail Charity Golf Classic | LPGA Tour | Nancy Lopez | USD 450,000 |
| 1991 | Rail Charity Golf Classic | LPGA Tour | Pat Bradley | USD 400,000 |
| 1990 | Rail Charity Golf Classic | LPGA Tour | Beth Daniel | USD 300,000 |
| 1989 | Rail Charity Golf Classic | LPGA Tour | Beth Daniel | USD 275,000 |
| 1988 | Rail Charity Golf Classic | LPGA Tour | Betsy King | USD 250,000 |
| 1987 | Rail Charity Classic | LPGA Tour | Rosie Jones | USD 200,000 |
| 1986 | Rail Charity Classic | LPGA Tour | Betsy King | USD 200,000 |
| 1985 | Rail Charity Classic | LPGA Tour | Betsy King | USD 185,000 |
| 1984 | Rail Charity Classic | LPGA Tour | Cindy Hill | USD 175,000 |
| 1983 | Rail Charity Classic | LPGA Tour | Lauri Merten | USD 150,000 |
| 1982 | Rail Charity Golf Classic | LPGA Tour | Joanne Carner | USD 125,000 |
| 1981 | Rail Charity Golf Classic | LPGA Tour | Joanne Carner | USD 125,000 |
| 1980 | Rail Charity Golf Classic | LPGA Tour | Nancy Lopez | USD 125,000 |