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| Rank | Player | Age | Tournament |
|---|---|---|---|
| 1 | 15y 182d | Philadelphia 1983 | |
| 2 | 16y 55d | Salisbury 1973 | |
| 3 | 16y 111d | Albany 1972 | |
| 4 | 16y 149d | Stockholm Masters 1992 | |
| 5 | 16y 173d | Philadelphia 1984 | |
| 6 | 16y 188d | Memphis 1984 | |
| 7 | 16y 193d | Philadelphia 1988 | |
| 8 | 16y 229d | Albany 1972 | |
| 9 | 16y 279d | Philadelphia 1987 | |
| 10 | 16y 333d | Philadelphia 1987 | |
| 11 | 17y 20d | Los Angeles 1979 | |
| 12 | 17y 54d | Salisbury 1974 | |
| 13 | 17y 60d | Philadelphia 1985 | |
| 14 | 17y 67d | Memphis 1985 | |
| 15 | 17y 97d | Memphis 1977 | |
| 16 | 17y 130d | Paris Masters 2003 | |
| 17 | 17y 160d | Philadelphia 1989 | |
| 18 | 17y 175d | Memphis 1982 | |
| 19 | 17y 192d | Philadelphia 1989 | |
| 20 | 17y 192d | Los Angeles 1976 |