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| Rank | Player | Age | Tournament |
|---|---|---|---|
| 1 | 17y 4d | Australian Open 1984 | |
| 2 | 17y 18d | Wimbledon 1973 | |
| 3 | 17y 96d | Roland Garros 1989 | |
| 4 | 17y 125d | Australian Open 1989 | |
| 5 | 17y 159d | Australian Open 1976 | |
| 6 | 17y 188d | Australian Open 1982 | |
| 7 | 17y 214d | Wimbledon 1985 | |
| 8 | 17y 274d | Roland Garros 1982 | |
| 9 | 17y 338d | Australian Championships 1968 | |
| 10 | 17y 361d | Roland Garros 1974 | |
| 11 | 18y 24d | Roland Garros 1988 | |
| 12 | 18y 95d | Roland Garros 1990 | |
| 13 | 18y 117d | US Open 2021 | |
| 14 | 18y 122d | US Open 1988 | |
| 15 | 18y 124d | Wimbledon 1977 | |
| 16 | 18y 185d | Roland Garros 1986 | |
| 17 | 18y 213d | Wimbledon 1986 | |
| 18 | 18y 215d | Roland Garros 1988 | |
| 19 | 18y 241d | Wimbledon 2011 | |
| 20 | 18y 257d | Roland Garros 1990 |
