| No. | Name | Weight Division(s) as | Date |
| 1 | Mike Tyson | Heavyweight | 1989 – January 1990 |
| 2 | Julio César Chávez | Junior welterweight | January 1990 – September 1993 |
| 3 | Pernell Whitaker | mw- Welterweight Junior middleweight | September 1993 – April 1997 |
| 4 | Roy Jones Jr. | Light heavyweight | April – May 1997 |
| 5 | Oscar De La Hoya | Welterweight | May 1997 – June 1999 |
| 6 | Roy Jones Jr. (2) | Light heavyweight | June 1999 – June 2000 |
| 7 | Shane Mosley | Welterweight | June 2000 – July 2002 |
| 8 | Bernard Hopkins | Middleweight | July 2002 – November 2003 |
| 9 | Roy Jones Jr. (3) | Light heavyweight Heavyweight | November 2003 – June 8, 2004 |
| 10 | Bernard Hopkins (2) | Middleweight | June 8, 2004 – July 18, 2005 |
| 11 | Floyd Mayweather Jr. | Junior welterweight Welterweight Junior middleweight | July 18, 2005 – June 9, 2008 |
| 12 | Manny Pacquiao | Junior lightweight Lightweight Junior welterweight Welterweight Junior middleweight | June 9, 2008 – May 7, 2012 |
| The Ring decided to vacate the pound-for-pound rank and demoted Pacquiao to that resulted in a tie with Mayweather Jr. because the members of the editorial board were unimpressed by Pacquiao's performance in his third fight with Juan Manuel Márquez, while Mayweather Jr. was not promoted to because the board determined that he struggled in his fight against Miguel Cotto. |
| 13 | Floyd Mayweather Jr. (2) | Welterweight Junior middleweight | December 11, 2012 – September 15, 2015 |
| 14 | Román González | Flyweight Junior bantamweight | September 15, 2015 – March 21, 2017 |
| 15 | Andre Ward | Light heavyweight | March 21 – September 26, 2017 |
| 16 | Gennady Golovkin | Middleweight | September 26, 2017 – September 18, 2018 |
| 17 | Vasiliy Lomachenko | Lightweight | September 18, 2018 – November 7, 2019 |
| 18 | Canelo Álvarez | Middleweight Super middleweight Light heavyweight | November 7, 2019 – May 7, 2022 |
| 19 | Oleksandr Usyk | Heavyweight | May 7 – June 11, 2022 |
| 20 | Naoya Inoue | Bantamweight | June 11 – August 20, 2022 |
| 21 | Oleksandr Usyk (2) | Heavyweight | August 20, 2022 – July 29, 2023 |
| 22 | Terence Crawford | Welterweight | July 29, 2023 – May 6, 2024 |
| 23 | Naoya Inoue (2) | Junior featherweight | May 6 – May 18, 2024 |
| 24 | Oleksandr Usyk (3) | Heavyweight | May 18, 2024 – September 15, 2025 |
| 25 | Terence Crawford (2) | Super middleweight | September 15, 2025 – present |
