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| Rank | Player | Age | Tournament |
|---|---|---|---|
| 1 | 15y 66d | Rye Brook 1988 | |
| 2 | 15y 225d | Scottsdale 1987 | |
| 3 | 15y 227d | Tampa 1980 | |
| 4 | 15y 360d | Stowe 1980 | |
| 5 | 16y 5d | Brisbane 1987 | |
| 6 | 16y 25d | Sacramento 1969 | |
| 7 | 16y 28d | US Open 1983 | |
| 8 | 16y 69d | Tel Aviv 1983 | |
| 9 | 16y 89d | Adelaide 1988 | |
| 10 | 16y 97d | Stratton Mountain 1986 | |
| 11 | 16y 97d | Sacramento 1972 | |
| 12 | 16y 145d | Melbourne 1981 | |
| 13 | 16y 146d | Washington 1988 | |
| 14 | 16y 150d | Stockholm 1972 | |
| 15 | 16y 174d | Cincinnati 1988 | |
| 16 | 16y 188d | US Open 1988 | |
| 17 | 16y 189d | Kingston 1972 | |
| 18 | 16y 195d | Adelaide 2003 | |
| 19 | 16y 200d | Indian Wells 1988 | |
| 20 | 16y 210d | Los Angeles 1988 |
