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| Rank | Player | Age | Tournament |
|---|---|---|---|
| 1 | 16y 195d | Adelaide 2003 | |
| 2 | 16y 237d | Marseille 2003 | |
| 3 | 16y 283d | Tel Aviv 1993 | |
| 4 | 16y 314d | Adelaide 1998 | |
| 5 | 16y 322d | Sydney Outdoor 1998 | |
| 6 | 17y 13d | Almaty 2024 | |
| 7 | 17y 50d | Toulouse 1998 | |
| 8 | 17y 68d | Stockholm 2001 | |
| 9 | 17y 117d | St. Petersburg 2013 | |
| 10 | 17y 118d | Delray Beach 2015 |
