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Japan Open 2026 Open for entries
https://billi-walker.jp/en/jpba/japanopen/2026
Women's professional tour 2026 3rd Open for entries
https://billi-walker.jp/en/jpba/womens-tour/2026-3rd
Grand Prix West 2026 4th Livescores are now available.
https://billi-walker.jp/en/jpba/grandprixwest/2026-4th
Search Scores
Mariko NIIBOVSChiaki SATOU
RATING(2026-08-06)
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1,387RATING
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104RANK
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1,576
2018-07-15
MAX
RATING(2026-08-06)
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-RATING
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-RANK
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1,746
2014-03-02
MAX
| 24位 | 2026JPBA Ranking | - |
| Best4('13) | The best performance in JAPAN OPEN | Best32('16,'14) |
| 0.3107(32/103) | Winning percentage after best16 | 0.4118(7/17) |
| 0.4667(35/75) | Total winning percentage on hill to hill | 0.5882(10/17) |
| 0.0123(1/81) | Finals/best16 | 0.0909(1/11) |
Comparison of past ranking
Scoreline of Mariko NIIBO and Chiaki SATOU (1 - 4 / 4 lines)
2017
Mariko NIIBO |
Chiaki SATOU |
|
| 7 | 20.05.20172017 All Japan Ladies Tour 2ndQ4 | 4 |
2016
Mariko NIIBO |
Chiaki SATOU |
|
| 7 | 22.11.2016Losers round 12016 All Japan Championship Womengroup3 | 4 |
2015
Mariko NIIBO |
Chiaki SATOU |
|
| 6 | 23.05.2015Losers round Finals2015 Osaka Queens OpenQ-group2 | 3 |
2014
Mariko NIIBO |
Chiaki SATOU |
|
| 2 | 06.09.2014Winners round 22014 Kantou Ladies OpenQ-group3 | 6 |