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| Rank | Player | Age | Tournament |
|---|---|---|---|
| 1 | 16y 69d | Tel Aviv 1983 | |
| 2 | 16y 216d | San Francisco 1988 | |
| 3 | 16y 314d | Adelaide 1998 | |
| 4 | 16y 349d | Boston 1984 | |
| 5 | 17y 39d | Tel Aviv 1984 | |
| 6 | 17y 46d | Geneva 1984 | |
| 7 | 17y 96d | Roland Garros 1989 | |
| 8 | 17y 195d | Munich 1987 | |
| 9 | 17y 200d | Queen's Club 1985 | |
| 10 | 17y 207d | Itaparica 1987 |
