Youngest Players at Top 50
The youngest player ever to enter the ATP Top 50 is Michael Chang, who first appeared at 16y 6m 0d on 1988-08-22. The second youngest is Aaron Krickstein (16y 9m 19d on 1984-05-21). Third is Rafael Nadal (17y 2m 1d). 100 players in this list entered the Top 50 before their 21st birthday.
| Top | Player | Age at Top 50 | Date |
|---|---|---|---|
| 1 | 16y 6m 0d | 1988-08-22 | |
| 2 | 16y 9m 19d | 1984-05-21 | |
| 3 | 17y 2m 1d | 2003-08-04 | |
| 4 | 17y 2m 14d | 1973-08-20 | |
| 5 | 17y 5m 14d | 1985-05-06 | |
| 6 | 17y 5m 20d | 1987-10-19 | |
| 7 | 17y 6m 21d | 1982-03-15 | |
| 8 | 17y 7m 4d | 1974-07-29 | |
| 9 | 17y 7m 7d | 1983-01-03 | |
| 10 | 17y 8m 2d | 1987-06-22 | |
| 11 | 17y 8m 27d | 1985-09-30 | |
| 12 | 17y 8m 30d | 1989-06-12 | |
| 13 | 17y 10m 26d | 1992-07-27 | |
| 14 | 17y 11m 10d | 1982-07-26 | |
| 15 | 18y 0m 20d | 1981-04-13 | |
| 16 | 18y 1m 7d | 1986-09-29 | |
| 17 | 18y 1m 12d | 1991-01-21 | |
| 18 | 18y 1m 16d | 1985-12-09 | |
| 19 | 18y 2m 0d | 1984-03-19 | |
| 20 | 18y 2m 16d | 1999-05-10 |
