Youngest Players to Reach No. 3
The youngest player ever to reach ATP No. 3 is Bjorn Borg, who achieved this milestone at 18y 6m 24d on 1974-12-30. The second youngest is Andre Agassi (18y 7m 27d on 1988-12-26). Third is Novak Djokovic (20y 7m 9d). A total of 34 players have ever reached No. 3. 4 of them did so before turning 21.
| Rank | Player | Age at No. 3 | Date |
|---|---|---|---|
| 1 | 18y 6m 24d | 1974-12-30 | |
| 2 | 18y 7m 27d | 1988-12-26 | |
| 3 | 20y 7m 9d | 2007-12-31 | |
| 4 | 20y 10m 15d | 1979-12-31 | |
| 5 | 21y 4m 8d | 1985-12-30 | |
| 6 | 21y 4m 16d | 1992-12-28 | |
| 7 | 21y 7m 25d | 2024-12-30 | |
| 8 | 21y 9m 21d | 1981-12-28 | |
| 9 | 22y 10m 12d | 1996-12-30 | |
| 10 | 22y 11m 3d | 2002-12-30 | |
| 11 | 23y 3m 26d | 2005-12-26 | |
| 12 | 23y 4m 10d | 1993-12-27 | |
| 13 | 23y 10m 3d | 2004-12-27 | |
| 14 | 23y 10m 17d | 2003-12-29 | |
| 15 | 23y 11m 6d | 1989-12-25 | |
| 16 | 24y 0m 4d | 2022-12-26 | |
| 17 | 24y 1m 8d | 1991-12-30 | |
| 18 | 24y 8m 7d | 2021-12-27 | |
| 19 | 24y 8m 17d | 1998-12-28 | |
| 20 | 25y 6m 23d | 2006-12-25 |
