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| Rank | Player | Age | Tournament |
|---|---|---|---|
| 1 | 29y 133d | Masters 1975 | |
| 2 | 27y 357d | ATP World Tour Championships 1995 | |
| 3 | 27y 302d | Masters 1976 | |
| 4 | 27y 269d | Masters 1987 | |
| 5 | 26y 268d | Masters 1986 | |
| 6 | 25y 326d | Masters 1984 | |
| 7 | 25y 312d | Masters 1985 | |
| 8 | 25y 123d | Masters 1977 | |
| 9 | 25y 99d | ATP World Championships 1996 | |
| 10 | 25y 27d | ATP Tour World Championships 1993 | |
| 11 | 24y 360d | ATP Tour World Championships 1992 | |
| 12 | 24y 327d | Masters 1983 | |
| 13 | 24y 222d | Masters 1980 | |
| 14 | 23y 358d | Masters 1970 | |
| 15 | 23y 317d | Masters Cup 2005 | |
| 16 | 23y 313d | Masters 1989 | |
| 17 | 23y 216d | Masters 1979 | |
| 18 | 23y 95d | ATP Tour World Championships 1994 | |
| 19 | 22y 316d | Masters 1982 | |
| 20 | 21y 311d | Masters 1981 |
