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| Rank | Player | Age | Tournament |
|---|---|---|---|
| 1 | 15y 255d | Roland Garros 1983 | |
| 2 | 15y 306d | Fort Lauderdale 1971 | |
| 3 | 15y 343d | Roland Garros 2002 | |
| 4 | 16y 4d | Roland Garros 1968 | |
| 5 | 16y 90d | Roland Garros 1988 | |
| 6 | 16y 108d | Cincinnati 1969 | |
| 7 | 16y 146d | Roland Garros 1984 | |
| 8 | 16y 170d | Roland Garros 1989 | |
| 9 | 16y 207d | Madrid Masters 2024 | |
| 10 | 16y 215d | Roland Garros 2009 |
