General Statistics - Koizumi, Noritaka
1679
Rank
18 - 16
Wins-Losses
1688 (2025)
Highest ranking
General Statistics - Rengifo, Frazier
1418
Rank
30 - 20
Wins-Losses
1357 (2025)
Highest ranking
Ranking - Koizumi, Noritaka
| Year | Ranking | Summary | Clay | Hardcourt | Indoor | Grass | Other |
|---|---|---|---|---|---|---|---|
| 2026 | - | 7/4 | - | 7/4 | - | - | - |
| 2025 | 1688 | 7/4 | - | 7/4 | - | - | - |
| 2024 | - | 9/8 | 8/6 | 1/2 | - | - | - |
| 2023 | - | 1/2 | - | 1/2 | - | - | - |
| Summary | 24/18 | 8/6 | 16/12 | 0/0 | 0/0 | 0/0 |
Ranking - Rengifo, Frazier
| Year | Ranking | Summary | Clay | Hardcourt | Indoor | Grass | Other |
|---|---|---|---|---|---|---|---|
| 2025 | 1357 | 0/1 | 0/1 | - | - | - | - |
| 2024 | 1418 | 15/10 | 15/10 | - | - | - | - |
| 2023 | - | 5/8 | 4/6 | 1/2 | - | - | - |
| 2022 | - | 0/1 | 0/1 | - | - | - | - |
| 2021 | 1767 | 1/1 | 1/1 | - | - | - | - |
| 2018 | - | 1/1 | - | 1/1 | - | - | - |
| 2016 | 1506 | 4/3 | 4/3 | - | - | - | - |
| 2015 | - | 7/4 | 7/4 | - | - | - | - |
| Summary | 33/29 | 31/26 | 2/3 | 0/0 | 0/0 | 0/0 |
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