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| Rank | Player | Age | Tournament |
|---|---|---|---|
| 1 | 38y 73d | Basel 2019 | |
| 2 | 37y 312d | Halle 2019 | |
| 3 | 37y 200d | Dubai 2019 | |
| 4 | 37y 74d | Basel 2018 | |
| 5 | 36y 188d | Rotterdam 2018 | |
| 6 | 36y 75d | Basel 2017 | |
| 7 | 35y 315d | Halle 2017 | |
| 8 | 35y 272d | Queen's Club 2017 | |
| 9 | 35y 263d | Acapulco 2022 | |
| 10 | 35y 134d | Astana 2022 | |
| 11 | 34y 320d | Barcelona 2021 | |
| 12 | 34y 78d | Basel 2015 | |
| 13 | 34y 69d | Halle 2012 | |
| 14 | 33y 310d | Halle 2015 | |
| 15 | 33y 265d | Acapulco 2020 | |
| 16 | 33y 217d | Tokyo Indoor 1993 | |
| 17 | 33y 199d | Vienna 2015 | |
| 18 | 33y 198d | Dubai 2015 | |
| 19 | 33y 161d | Rotterdam 2020 | |
| 20 | 33y 72d | Basel 2014 |