| - | JPBA Ranking | - |
| Champion('93) | The best performance in JAPAN OPEN | Best32('91,'90,'88,etc..) |
| 0.6540(155/237) | Winning percentage after best16 | 0.0000(0/3) |
| 0.5915(42/71) | Total winning percentage on hill to hill | 0.0000(0/2) |
| 0.2464(68/276) | Finals/best16 | 0.0833(1/12) |
Akikumo TOSHIKAWA |
下戸良平 |
|
| 7 | 15.01.1990Round of 321990 Japan Open | - |
Akikumo TOSHIKAWA |
下戸良平 |
|
| 8 | 19.11.1989Round of 161989 All Japan Championship | - |
