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| Rank | Player | Age | Tournament |
|---|---|---|---|
| 1 | 39y 160d | Memphis 1992 | |
| 2 | 38y 73d | Basel 2019 | |
| 3 | 37y 312d | Halle 2019 | |
| 4 | 37y 238d | Vienna 2016 | |
| 5 | 37y 200d | Dubai 2019 | |
| 6 | 37y 140d | Washington 2016 | |
| 7 | 37y 74d | Basel 2018 | |
| 8 | 37y 62d | Queen's Club 2025 | |
| 9 | 36y 314d | Halle 2018 | |
| 10 | 36y 188d | Rotterdam 2018 | |
| 11 | 36y 107d | Halle 2015 | |
| 12 | 36y 75d | Basel 2017 | |
| 13 | 36y 55d | Hamburg 2016 | |
| 14 | 35y 338d | Memphis 2008 | |
| 15 | 35y 315d | Halle 2017 | |
| 16 | 35y 281d | Dubai 2023 | |
| 17 | 35y 272d | Queen's Club 2017 | |
| 18 | 35y 263d | Acapulco 2022 | |
| 19 | 35y 234d | Basel 2014 | |
| 20 | 35y 194d | Queen's Club 2014 |