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| Rank | Player | Age | Tournament |
|---|---|---|---|
| 1 | 20y 44d | Queen's Club 2023 | |
| 2 | 21y 215d | Halle 2018 | |
| 3 | 22y 42d | Queen's Club 2025 | |
| 4 | 22y 305d | Halle 2024 | |
| 5 | 22y 351d | Halle 2021 | |
| 6 | 25y 60d | Queen's Club 2021 | |
| 7 | 25y 121d | Halle 2022 | |
| 8 | 26y 1d | Halle 2023 | |
| 9 | 26y 61d | Queen's Club 2022 | |
| 10 | 27y 31d | Queen's Club 2024 |
