Timespan between first and last time ranked No. 8
The longest career span at No. 8 in ATP history belongs to Roger Federer: 19y 1m 15d, from 2002-05-20 to 2021-07-05. Second is Andre Agassi (16y 1m 19d). Third is Ivan Lendl (12y 7m 18d). The list includes 152 players in total. 4 of them spanned more than a decade at No. 8.
| Rank | Player | Timespan | First | Last |
|---|---|---|---|---|
| 1 | 19y 1m 15d | 2002-05-20 | 2021-07-05 | |
| 2 | 16y 1m 19d | 1990-01-01 | 2006-02-20 | |
| 3 | 12y 7m 18d | 1980-09-08 | 1993-04-26 | |
| 4 | 10y 6m 3d | 2008-11-03 | 2019-05-06 | |
| 5 | 9y 1m 7d | 1985-07-08 | 1994-08-15 | |
| 6 | 9y 1m 0d | 1985-10-14 | 1994-11-14 | |
| 7 | 8y 7m 8d | 2007-09-10 | 2016-04-18 | |
| 8 | 8y 6m 17d | 1989-04-17 | 1997-11-03 | |
| 9 | 8y 1m 15d | 1997-03-17 | 2005-05-02 | |
| 10 | 8y 0m 25d | 1974-06-03 | 1982-06-28 | |
| 11 | 7y 11m 25d | 1990-03-12 | 1998-03-09 | |
| 12 | 7y 8m 7d | 2009-07-06 | 2017-03-13 | |
| 13 | 7y 6m 20d | 1995-02-20 | 2002-09-09 | |
| 14 | 7y 6m 10d | 2015-08-17 | 2023-02-27 | |
| 15 | 7y 4m 9d | 2007-06-18 | 2014-10-27 | |
| 16 | 6y 8m 22d | 1991-01-07 | 1997-09-29 | |
| 17 | 6y 8m 7d | 1991-04-29 | 1998-01-05 | |
| 18 | 6y 6m 12d | 1993-08-09 | 2000-02-21 | |
| 19 | 6y 3m 29d | 1999-02-01 | 2005-05-30 | |
| 20 | 6y 3m 6d | 2017-07-31 | 2023-11-06 |
