We're supplying the professional players lists equipped with enormous data.
Grand Prix East 2026 6th Open for entries
https://billi-walker.jp/en/jpba/grandprixeast/2026-6th
Search Scores
Mariko NIIBOVSAkio OTANI
RATING(2026-10-18)
-
1,443RATING
-
97RANK
-
1,576
2018-07-15
MAX
RATING(2026-10-18)
-
-RATING
-
-RANK
-
1,642
2006-10-07
MAX
| 20位 | 2026JPBA Ranking | - |
| Best8('17) | The best performance in All JAPAN CHAMPIONSHP | Runner-up('07) |
| 0.3143(33/105) | Winning percentage after best16 | 0.5149(104/202) |
| 0.4744(37/78) | Total winning percentage on hill to hill | 0.4918(30/61) |
| 0.0122(1/82) | Finals/best16 | 0.1644(24/146) |
Comparison of past ranking
Scoreline of Mariko NIIBO and Akio OTANI (1 - 10 / 10 lines)
2023
Mariko NIIBO |
Akio OTANI |
|
| 5 | 30.09.2023Winners round 22023 Mezz Kyoto Ladies OpenQ-group4 | 6 |
2018
Mariko NIIBO |
Akio OTANI |
|
| 4 | 27.01.2018Winners round 12018 Kansai Ladies OpenQ-group4 | 6 |
2015
Mariko NIIBO |
Akio OTANI |
|
| 4 | 24.01.2015Winners round Finals2015 Kansai Ladies OpenQ-group1 | 6 |
2007
Mariko NIIBO |
Akio OTANI |
|
| 3 | 09.12.2007Round of 162007 All Japan Ladies Tour 6th | 8 |
| 2 | 05.08.2007Quarter-finals2007 All Japan Ladies Tour 4th | 8 |
| 5 | 10.06.2007Round of 162007 Central Ladies Open | 7 |
2006
Mariko NIIBO |
Akio OTANI |
|
| 7 | 07.10.2006Semi-finals2006 Hokuriku Open Women | 4 |
| 5 | 06.08.2006Round of 162006 All Japan Ladies Tour 3rd | 7 |
| 8 | 16.04.2006Quarter-finals2006 All Japan Ladies Tour 2nd | 7 |
2005
Mariko NIIBO |
Akio OTANI |
|
| 1 | 25.09.2005Semi-finals2005 Kyushu Ladies Open | 7 |