Lowest winning score
-13
1981
Highest winning score
-5
1994
Avg winning score
-8.2
15 editions
| Year | Tournament | Tour | Winner | Purse |
|---|
| 1994 | Lady Keystone Open | LPGA Tour | Elaine Crosby | USD 400,000 |
| 1993 | Lady Keystone Open | LPGA Tour | Val Skinner | USD 400,000 |
| 1992 | Lady Keystone Open | LPGA Tour | Danielle Ammaccapane | USD 400,000 |
| 1991 | Lady Keystone Open | LPGA Tour | Colleen Walker | USD 400,000 |
| 1990 | Lady Keystone Open | LPGA Tour | Cathy Gerring | USD 300,000 |
| 1989 | Lady Keystone Open | LPGA Tour | Laura Davies | USD 300,000 |
| 1988 | Lady Keystone Open | LPGA Tour | Shirley Furlong | USD 300,000 |
| 1987 | Lady Keystone Open | LPGA Tour | Ayako Okamoto | USD 300,000 |
| 1986 | Lady Keystone Open | LPGA Tour | Juli Inkster | USD 250,000 |
| 1985 | Lady Keystone Open | LPGA Tour | Juli Inkster | USD 250,000 |
| 1984 | Lady Keystone Open | LPGA Tour | Amy Alcott | USD 200,000 |
| 1983 | Lady Keystone Open | LPGA Tour | Jan Stephenson | USD 200,000 |
| 1982 | Lady Keystone Open | LPGA Tour | Jan Stephenson | USD 200,000 |
| 1981 | Lady Keystone Open | LPGA Tour | Joanne Carner | USD 125,000 |
| 1980 | Lady Keystone Open | LPGA Tour | Joanne Carner | USD 100,000 |