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| Rank | Player | Age | Tournament |
|---|---|---|---|
| 1 | 16y 33d | Bastad 1972 | |
| 2 | 16y 201d | Hilversum 1984 | |
| 3 | 16y 261d | Prague 1996 | |
| 4 | 16y 277d | Forest Hills WCT 1984 | |
| 5 | 16y 284d | Rome 1984 | |
| 6 | 16y 285d | Palermo 1968 | |
| 7 | 16y 292d | Naples 1968 | |
| 8 | 16y 295d | St. Vincent 1986 | |
| 9 | 16y 299d | Reggio Calabria 1968 | |
| 10 | 16y 303d | Buenos Aires 1986 |
