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| Rank | Player | Age | Tournament |
|---|---|---|---|
| 1 | 39y 306d | Pune 2019 | |
| 2 | 38y 165d | Athens 2025 | |
| 3 | 38y 127d | Auckland 2025 | |
| 4 | 38y 117d | Umag 2023 | |
| 5 | 38y 104d | 's-Hertogenbosch 2017 | |
| 6 | 38y 42d | Bastad 2024 | |
| 7 | 37y 362d | Geneva 2025 | |
| 8 | 37y 285d | Dallas 2023 | |
| 9 | 37y 269d | Queen's Club 2019 | |
| 10 | 37y 161d | Los Cabos 2016 | |
| 11 | 37y 133d | Newport 2016 | |
| 12 | 37y 44d | Stockholm 2023 | |
| 13 | 36y 342d | Houston 2022 | |
| 14 | 36y 307d | Stuttgart 2018 | |
| 15 | 36y 204d | Auckland 2023 | |
| 16 | 36y 188d | Quito 2017 | |
| 17 | 36y 182d | Antwerp 2024 | |
| 18 | 36y 135d | Newport 2015 | |
| 19 | 36y 90d | Atlanta 2021 | |
| 20 | 35y 355d | Hangzhou 2024 |
