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Osaka Queens Open 2026 Open for entries
https://billi-walker.jp/en/jpba/osaka-queens/2026
14-1 All Japan Open Championship 2026 Open for entries
https://billi-walker.jp/en/jpba/14-1/2026
Search Scores
Rika OkumuraVSMasako ISO
| - | JPBA Ranking | - |
| Best4('95,'94) | The best performance in JAPAN OPEN | Best8('00,'99) |
| 0.4237(25/59) | Winning percentage after best16 | 0.3077(12/39) |
| 0.4375(14/32) | Total winning percentage on hill to hill | 0.5714(4/7) |
| 0.3662(26/71) | Finals/best16 | 0.0244(1/41) |
Comparison of past ranking
Scoreline of Rika Okumura and Masako ISO (1 - 5 / 5 lines)
2002
Rika Okumura |
Masako ISO |
|
| 8 | 22.04.2002Quarter-finals2002 East Japan Ladies Tour 3rd | 6 |
| 7 | 17.02.2002Round of 162002 East Japan Ladies Tour 2nd | 6 |
2000
Rika Okumura |
Masako ISO |
|
| 4 | 12.03.2000Semi-finals2000 East Japan Ladies Tour 1st | 7 |
1999
Rika Okumura |
Masako ISO |
|
| 2 | 03.11.1999Round of 161999 Autumn Queens Open | 7 |
| 6 | 10.04.1999Quarter-finals1999 East Japan Ladies Tour 2nd | 3 |