General Statistics - Sawayanagi, Riko
842
Rank
30 - 22
Wins-Losses
205 (2016)
Highest ranking
General Statistics - Yamazaki, Ikumi
728
Rank
30 - 36
Wins-Losses
389 (2025)
Highest ranking
Ranking - Sawayanagi, Riko
| Year | Ranking | Summary | Clay | Hardcourt | Indoor | Grass | Other |
|---|---|---|---|---|---|---|---|
| 2023 | 842 | 15/11 | 5/2 | 10/9 | - | - | - |
| 2022 | 839 | 22/19 | 12/9 | 10/8 | 0/1 | 0/1 | - |
| 2021 | 1127 | 19/11 | 12/7 | 7/4 | - | - | - |
| 2019 | - | 0/1 | - | 0/1 | - | - | - |
| 2018 | 582 | 9/8 | - | 9/7 | - | 0/1 | - |
| 2017 | 336 | 17/32 | 0/2 | 16/29 | 1/1 | - | - |
| 2016 | 205 | 44/34 | 1/3 | 36/27 | 0/1 | 7/3 | - |
| 2015 | 209 | 31/23 | 4/4 | 21/13 | 0/1 | 6/5 | - |
| 2014 | - | 31/19 | 1/1 | 28/15 | 0/1 | 2/2 | - |
| 2013 | 258 | 8/9 | - | 8/8 | - | 0/1 | - |
| 2012 | 543 | 4/4 | - | 1/0 | 1/1 | 2/3 | - |
| Summary | 200/171 | 35/28 | 146/121 | 2/6 | 17/16 | 0/0 |
Ranking - Yamazaki, Ikumi
| Year | Ranking | Summary | Clay | Hardcourt | Indoor | Grass | Other |
|---|---|---|---|---|---|---|---|
| 2025 | 389 | 0/1 | - | 0/1 | - | - | - |
| 2024 | 490 | 42/22 | 25/10 | 15/11 | 2/1 | - | - |
| 2023 | 728 | 15/18 | 2/4 | 12/13 | 1/1 | - | - |
| 2022 | 471 | 33/11 | 10/3 | 16/8 | - | 7/0 | - |
| 2020 | - | 0/1 | - | - | 0/1 | - | - |
| 2019 | - | 7/8 | 5/2 | 2/5 | 0/1 | - | - |
| 2018 | - | 4/2 | - | 1/1 | 3/1 | - | - |
| Summary | 101/63 | 42/19 | 46/39 | 6/5 | 7/0 | 0/0 |
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