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| Rank | Player | Age | Tournament |
|---|---|---|---|
| 1 | 16y 85d | Washington-2 1973 | |
| 2 | 16y 216d | San Francisco 1988 | |
| 3 | 17y 34d | Richmond WCT 1974 | |
| 4 | 17y 68d | Hampton 1974 | |
| 5 | 17y 85d | Bangkok 1981 | |
| 6 | 17y 94d | Detroit 1988 | |
| 7 | 17y 116d | Rotterdam 1985 | |
| 8 | 17y 129d | Melbourne-1 1982 | |
| 9 | 17y 163d | Bangkok 1982 | |
| 10 | 17y 174d | Calcutta 1978 | |
| 11 | 17y 190d | Rotterdam 1999 | |
| 12 | 17y 197d | Brussels 1982 | |
| 13 | 17y 198d | Philadelphia WCT 1981 | |
| 14 | 17y 215d | San Francisco 1989 | |
| 15 | 17y 249d | WCT Finals 1985 | |
| 16 | 17y 250d | Paris 1989 | |
| 17 | 17y 250d | St. Petersburg 1995 | |
| 18 | 17y 253d | London WCT 1974 | |
| 19 | 17y 258d | Wembley 1989 | |
| 20 | 17y 263d | Barcelona WCT 1974 |