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| Rank | Player | Age | Tournament |
|---|---|---|---|
| 1 | 17y 316d | Stuttgart Outdoor 1992 | |
| 2 | 18y 191d | Philadelphia 1990 | |
| 3 | 18y 217d | Barcelona 1993 | |
| 4 | 18y 263d | Acapulco 2005 | |
| 5 | 18y 285d | Rio de Janeiro 2022 | |
| 6 | 18y 306d | Stuttgart-2 1990 | |
| 7 | 18y 319d | Barcelona 2005 | |
| 8 | 18y 348d | Barcelona 2022 | |
| 9 | 18y 350d | New Haven 1993 | |
| 10 | 19y 45d | Stuttgart 2005 | |
| 11 | 19y 60d | Basel 2025 | |
| 12 | 19y 172d | Memphis 2002 | |
| 13 | 19y 269d | Dubai 2006 | |
| 14 | 19y 287d | Stuttgart 2008 | |
| 15 | 19y 294d | Kitzbuhel 2008 | |
| 16 | 19y 325d | Barcelona 2006 | |
| 17 | 19y 347d | Barcelona 2023 | |
| 18 | 19y 351d | Washington 2021 | |
| 19 | 20y 0d | Indianapolis 1991 | |
| 20 | 20y 20d | Stuttgart 2002 |