General Statistics - Kobori, Momoko
625
Rank
34 - 48
Wins-Losses
253 (2018)
Highest ranking
General Statistics - Yamaguchi, Mei
509
Rank
72 - 62
Wins-Losses
276 (2024)
Highest ranking
Ranking - Kobori, Momoko
| Year | Ranking | Summary | Clay | Hardcourt | Indoor | Grass | Other |
|---|---|---|---|---|---|---|---|
| 2025 | 418 | 2/4 | 0/2 | 2/2 | - | - | - |
| 2024 | 522 | 26/14 | - | 21/14 | 5/0 | - | - |
| 2023 | 625 | 17/24 | - | 11/20 | 4/2 | 2/2 | - |
| 2022 | 337 | 35/23 | - | 31/20 | 4/2 | 0/1 | - |
| 2021 | 456 | 13/11 | - | 12/10 | 1/1 | - | - |
| 2020 | 334 | 2/4 | - | 2/3 | 0/1 | - | - |
| 2019 | 322 | 28/28 | - | 27/27 | 1/1 | - | - |
| 2018 | 253 | 34/22 | 0/4 | 34/16 | 0/2 | - | - |
| 2017 | 354 | 32/23 | 2/3 | 29/19 | 1/1 | - | - |
| 2016 | 599 | 13/10 | - | 7/7 | 1/2 | 5/1 | - |
| 2015 | 1281 | 17/10 | 8/4 | 9/6 | - | - | - |
| 2014 | - | 0/1 | - | - | 0/1 | - | - |
| Summary | 219/174 | 10/13 | 185/144 | 17/13 | 7/4 | 0/0 |
Ranking - Yamaguchi, Mei
| Year | Ranking | Summary | Clay | Hardcourt | Indoor | Grass | Other |
|---|---|---|---|---|---|---|---|
| 2026 | - | 1/0 | - | 1/0 | - | - | - |
| 2025 | 289 | 11/9 | 2/3 | 9/6 | - | - | - |
| 2024 | 276 | 47/27 | 1/1 | 46/26 | - | - | - |
| 2023 | 509 | 36/31 | 1/1 | 34/27 | 0/1 | 1/2 | - |
| 2022 | 754 | 15/13 | 8/5 | 6/6 | 1/2 | - | - |
| 2021 | 596 | 26/13 | 13/9 | 13/4 | - | - | - |
| 2020 | 579 | 9/5 | - | 8/4 | 1/1 | - | - |
| 2019 | 679 | 18/12 | 4/2 | 14/10 | - | - | - |
| 2018 | 571 | 17/14 | - | 17/14 | - | - | - |
| 2017 | 728 | 15/11 | - | 11/10 | 4/1 | - | - |
| 2016 | - | 2/7 | - | 1/2 | 1/1 | 0/4 | - |
| 2015 | - | 2/2 | - | - | - | 2/2 | - |
| Summary | 199/144 | 29/21 | 160/109 | 7/6 | 3/8 | 0/0 |