| Name | J. Fonseca |
| Country | Brazil |
| DOB | 21.08.2006 |
| Season | Type | Rank | Titles | Won | Lost | Hard Won | Hard Lost | Clay Won | Clay Lost | Grass Won | Grass Lost |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 2023 | doubles | 711 | 0 | 15 | 7 | 6 | 2 | 6 | 4 | 3 | 1 |
| 2022 | doubles | 964 | 0 | 4 | 7 | 0 | 1 | 3 | 5 | 1 | 1 |
| 2021 | doubles | 1278 | 0 | 1 | 1 | 1 | 1 | ||||
| 2023 | singles | 727 | 1 | 26 | 9 | 10 | 2 | 13 | 6 | 3 | 1 |
| 2022 | singles | 832 | 0 | 8 | 7 | 0 | 1 | 7 | 5 | 1 | 1 |
| 2021 | singles | 0 | 0 | 1 | 0 | 1 | |||||
| 2024 | singles | 145 | 2 | 37 | 23 | 19 | 7 | 14 | 11 | 2 | 4 |
| 2024 | doubles | 538 | 1 | 6 | 2 | 6 | 2 | ||||
| 2025 | singles | 24 | 4 | 39 | 17 | 26 | 8 | 8 | 5 | 3 | 3 |
| 2025 | doubles | 0 | 0 | 2 | 0 | 1 | 0 | 1 |
| Name | Season | Type | Surface | Prize |
|---|---|---|---|---|
| Lexington (Challenger) | 2024 | singles | hard | $82,000 |
| US Open | 2023 | singles | hard | |
| Buenos Aires 3 (Challenger) | 2024 | doubles | clay | $82,000 |
| Next Gen Finals - Jeddah | 2024 | singles | hard (indoor) | $2,050,000 |
| Buenos Aires 2 (Challenger) | 2024 | doubles | clay | $82,000 |
| Canberra (Challenger) | 2025 | singles | hard | $200,000 |
| Buenos Aires | 2025 | singles | clay | $642,615 |
| Phoenix (Challenger) | 2025 | singles | hard | $250,000 |
| Basel | 2025 | singles | hard (indoor) | €2,523,045 |
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