General Statistics - Nishiwaki, Kazuki
1379
Rank
60 - 46
Wins-Losses
767 (2019)
Highest ranking
General Statistics - Okamura, Issei
1643
Rank
36 - 48
Wins-Losses
642 (2016)
Highest ranking
Ranking - Nishiwaki, Kazuki
| Year | Ranking | Summary | Clay | Hardcourt | Indoor | Grass | Other |
|---|---|---|---|---|---|---|---|
| 2025 | 1465 | 8/2 | - | 8/2 | - | - | - |
| 2024 | 1125 | 11/24 | 3/6 | 7/17 | 1/1 | - | - |
| 2023 | - | 30/23 | 6/2 | 22/20 | 2/1 | - | - |
| 2022 | 895 | 21/15 | 5/6 | 16/9 | - | - | - |
| 2021 | 1106 | 10/11 | - | 10/11 | - | - | - |
| 2020 | 881 | 0/2 | - | 0/2 | - | - | - |
| 2019 | 767 | 17/19 | 4/2 | 13/15 | 0/2 | - | - |
| 2018 | 779 | 33/19 | 2/3 | 31/15 | 0/1 | - | - |
| 2017 | 1943 | 19/15 | 1/2 | 18/12 | 0/1 | - | - |
| 2016 | 1642 | 4/2 | - | 4/1 | 0/1 | - | - |
| 2015 | - | 0/3 | - | 0/3 | - | - | - |
| 2014 | 1727 | 4/3 | 1/1 | 3/2 | - | - | - |
| Summary | 157/138 | 22/22 | 132/109 | 3/7 | 0/0 | 0/0 |
Ranking - Okamura, Issei
| Year | Ranking | Summary | Clay | Hardcourt | Indoor | Grass | Other |
|---|---|---|---|---|---|---|---|
| 2025 | 1649 | 3/3 | - | 3/3 | - | - | - |
| 2024 | 1185 | 24/27 | 2/3 | 22/22 | 0/2 | - | - |
| 2023 | - | 18/24 | 0/4 | 17/18 | 1/2 | - | - |
| 2022 | 1260 | 12/14 | 1/2 | 11/12 | - | - | - |
| 2021 | 1080 | 8/10 | 0/2 | 8/8 | - | - | - |
| 2020 | 1004 | 11/11 | - | 11/11 | - | - | - |
| 2019 | 966 | 18/26 | 1/2 | 13/22 | - | 4/2 | - |
| 2018 | 922 | 28/27 | 4/4 | 23/22 | 1/1 | - | - |
| 2017 | 916 | 14/32 | 2/8 | 11/21 | 1/3 | - | - |
| 2016 | 642 | 33/33 | 13/8 | 19/22 | 1/3 | - | - |
| 2015 | 855 | 39/24 | 9/5 | 30/18 | 0/1 | - | - |
| 2014 | 1458 | 3/7 | 0/2 | 3/4 | 0/1 | - | - |
| 2013 | 956 | 3/1 | 3/1 | - | - | - | - |
| Summary | 214/239 | 35/41 | 171/183 | 4/13 | 4/2 | 0/0 |
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