Winners
| Year | Winner | Score | To par | Margin of victory | Runner(s)-up | Purse ($) | Winner's share ($) | Ref. |
|---|---|---|---|---|---|---|---|---|
| Southgate Open | ||||||||
| 1975 |  Kathy Whitworth | 213 | E | 4 strokes |  Gerda Boykin | 40,000 | 5,700 | |
| Southgate Ladies Open | ||||||||
| 1974 | Jane Blalock (tie) and Sue Roberts | 142 [a] | −2 | Playoff | Shelley Hamlin (tie) and Mary Mills | 35,000 | 4,375 each | |
| 1973 | Kathy Whitworth | 142 [b] | −2 | 1 stroke | Gerda Boykin | 25,000 | 3,750 | |
| 1972 | Kathy Whitworth | 216 | E | Playoff |  Jocelyne Bourassa | 20,000 | 3,000 | |
| Southgate Open | ||||||||
| 1971 | Pam Barnett | 210 | −6 | 3 strokes | Jane Blalock JoAnne Carner | 20,000 | 3,000 | |
| Southgate Ladies Open | ||||||||
| 1970 | Kathy Ahern | 211 | −5 | 3 strokes | Judy Rankin | 20,000 | 3,000 | |
| 1969 | Carol Mann | 217 | +1 | 1 stroke | Jan Ferraris | 20,000 | 3,000 | |
