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| Rank | Player | Age | Tournament |
|---|---|---|---|
| 1 | 15y 79d | Fairfield 1975 | |
| 2 | 15y 182d | Philadelphia 1983 | |
| 3 | 15y 263d | Rotterdam WCT 1980 | |
| 4 | 15y 301d | Memphis 1981 | |
| 5 | 16y 23d | Wembley 1969 | |
| 6 | 16y 55d | Salisbury 1973 | |
| 7 | 16y 66d | Moscow 1990 | |
| 8 | 16y 66d | New Orleans 1980 | |
| 9 | 16y 74d | Stockholm 1980 | |
| 10 | 16y 85d | Washington-2 1973 | |
| 11 | 16y 111d | Albany 1972 | |
| 12 | 16y 111d | Lyon 2002 | |
| 13 | 16y 121d | Tokyo-2 1989 | |
| 14 | 16y 139d | Luxembourg 1984 | |
| 15 | 16y 146d | Gothenburg WCT 1972 | |
| 16 | 16y 149d | Stockholm Masters 1992 | |
| 17 | 16y 169d | Richmond WCT 1981 | |
| 18 | 16y 173d | Philadelphia 1984 | |
| 19 | 16y 181d | New York-2 1972 | |
| 20 | 16y 182d | Richmond WCT 1984 |
