| No. | Name | Title | Date | Place | Event | Reign | Note |
|---|---|---|---|---|---|---|---|
| 1 | Toshie Uematsu | 1 | 07-Apr-1997 | Huntsville, AL | 103 | Note 1 | |
| 2 | Yoshiko Tamura | 1 | 19-Jul-1997 | Yokohama, Japan | 63 | ||
| 3 | Sugar Sato | 1 | 20-Sep-1997 | Kawasaki, Japan | Note 2 |
| 1 | Defeats Malia Hosaka in tournament final. |
|---|---|
| 2 | Title abandoned sometime after this date. |