| Name | H. Koyama |
| Country | Japan |
| DOB | 13.12.2007 |
| Season | Type | Rank | Titles | Won | Lost | Hard Won | Hard Lost | Clay Won | Clay Lost | Grass Won | Grass Lost |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 2025 | doubles | 1944 | 0 | 5 | 7 | 5 | 7 | ||||
| 2024 | doubles | 0 | 0 | 4 | 0 | 4 | |||||
| 2025 | singles | 1786 | 0 | 4 | 10 | 4 | 10 | ||||
| 2024 | singles | 1954 | 0 | 1 | 3 | 1 | 3 |
| Name | Season | Type | Surface | Prize |
|---|
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