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| Rank | Player | Age | Tournament |
|---|---|---|---|
| 1 | 16y 69d | Tel Aviv 1983 | |
| 2 | 16y 314d | Adelaide 1998 | |
| 3 | 17y 39d | Tel Aviv 1984 | |
| 4 | 17y 207d | Itaparica 1987 | |
| 5 | 17y 270d | Cincinnati 1985 | |
| 6 | 17y 291d | Memphis 1988 | |
| 7 | 17y 364d | Napa 1981 | |
| 8 | 18y 39d | Little Rock 1975 | |
| 9 | 18y 43d | Delray Beach 2008 | |
| 10 | 18y 87d | Stratton Mountain 1988 |
