Youngest Players to Reach No. 5
The youngest player ever to reach ATP No. 5 is Michael Chang, who achieved this milestone at 17y 10m 3d on 1989-12-25. The second youngest is Pete Sampras (19y 4m 19d on 1990-12-31). Third is John McEnroe (19y 10m 9d). A total of 35 players have ever reached No. 5. 5 of them did so before turning 21.
| Rank | Player | Age at No. 5 | Date |
|---|---|---|---|
| 1 | 17y 10m 3d | 1989-12-25 | |
| 2 | 19y 4m 19d | 1990-12-31 | |
| 3 | 19y 10m 9d | 1978-12-25 | |
| 4 | 19y 11m 11d | 1985-12-30 | |
| 5 | 20y 1m 6d | 1987-12-28 | |
| 6 | 21y 3m 5d | 2009-12-28 | |
| 7 | 21y 10m 19d | 2001-12-31 | |
| 8 | 21y 11m 16d | 2003-12-29 | |
| 9 | 22y 4m 1d | 1998-12-28 | |
| 10 | 22y 4m 13d | 1974-12-30 | |
| 11 | 23y 3m 13d | 1994-12-26 | |
| 12 | 23y 3m 17d | 1999-12-27 | |
| 13 | 23y 4m 12d | 1981-12-28 | |
| 14 | 23y 5m 0d | 1977-12-26 | |
| 15 | 23y 6m 7d | 1976-12-27 | |
| 16 | 23y 7m 8d | 1983-12-26 | |
| 17 | 23y 10m 11d | 1997-12-29 | |
| 18 | 23y 10m 19d | 2019-12-30 | |
| 19 | 24y 2m 7d | 2021-12-27 | |
| 20 | 24y 3m 22d | 2017-12-25 |
