| WBA | WBC | IBF | WBO | The Ring |
| Anthony Joshua United Kingdom 24–1 (22 KO) December 7, 2019 |
Tyson Fury United Kingdom 30–0–1 (21 KO) February 22, 2020 |
Anthony Joshua United Kingdom 24–1 (22 KO) December 7, 2019 |
Anthony Joshua United Kingdom 24–1 (22 KO) December 7, 2019 |
Tyson Fury United Kingdom 30–0–1 (21 KO) February 22, 2020 |
| Trevor Bryan United States 21–0 (15 KO) January 29, 2021 | ||||
| Daniel Dubois United Kingdom 16–1 (15 KO) June 5, 2021 |
Dillian Whyte United Kingdom 28–2 (19 KO) March 27, 2021 | |||
| Mahmoud Charr Syria 31–4 (17 KO) November 25, 2017 |
| WBA | WBC | IBF | WBO | The Ring |
| Arsen Goulamirian France 26–0 (18 KO) August 31, 2019 |
Ilunga Makabu Democratic Republic of the Congo 28–2 (25 KO) January 31, 2020 |
Mairis Briedis Latvia 27–1 (19 KO) September 26, 2020 |
Lawrence Okolie United Kingdom 16–0 (13 KO) March 20, 2021 |
Mairis Briedis Latvia 27–1 (19 KO) September 26, 2020 |
| Ryad Merhy Belgium 30–1 (25 KO) January 29, 2021 |
| WBA | WBC | IBF | WBO | The Ring |
| Dmitry Bivol Russia 18–0 (11 KO) October 10, 2019 |
Artur Beterbiev Russia 16–0 (16 KO) October 18, 2019 |
Artur Beterbiev Russia 16–0 (16 KO) November 11, 2017 |
Joe Smith Jr. United States 27-3 (21 KO) April 10, 2021 |
vacant |
| Robin Krasniqi Germany 51–6 (19 KO) October 10, 2020 |
| WBA | WBC | IBF | WBO | The Ring |
| Canelo Álvarez Mexico 56–1–2 (38 KO) December 19, 2020 |
Canelo Álvarez Mexico 56–1–2 (38 KO) December 19, 2020 |
Caleb Plant United States 21–0 (12 KO) January 13, 2019 |
Canelo Álvarez Mexico 56–1–2 (38 KO) May 8, 2021 |
Canelo Álvarez Mexico 56–1–2 (38 KO) December 19, 2020 |
| David Morrell Cuba 5–0 (4 KO) January 19, 2021 |
| WBA | WBC | IBF | WBO | The Ring |
| Ryōta Murata Japan 16–2 (13 KO) January 7, 2021 |
Jermall Charlo United States 32–0 (22 KO) June 26, 2019 |
Gennady Golovkin Kazakhstan 41–1–1 (36 KO) October 5, 2019 |
Demetrius Andrade United States 30–0 (18 KO) October 20, 2018 |
vacant |
| Erislandy Lara United States 28–3–3 (16 KO) May 1, 2021 | ||||
| Chris Eubank Jr. United Kingdom 29–2 (22 KO) December 7, 2019 |
| WBA | WBC | IBF | WBO | The Ring |
| Jermell Charlo United States 34–1–1 (18 KO) September 26, 2020 |
Jermell Charlo United States 34–1–1 (18 KO) December 21, 2019 |
Jermell Charlo United States 34–1–1 (18 KO) September 26, 2020 |
Brian Castaño Argentina 17–0–2 (12 KO) February 13, 2021 |
Jermell Charlo United States 34–1–1 (18 KO) September 26, 2020 |
| Erislandy Lara United States 28–3–3 (16 KO) August 31, 2019 |
| WBA | WBC | IBF | WBO | The Ring |
| Yordenis Ugás Cuba 26–4 (12 KO) January 29, 2021 |
Errol Spence Jr. United States 27–0 (21 KO) September 28, 2019 |
Errol Spence Jr. United States 27–0 (21 KO) May 27, 2017 |
Terence Crawford United States 37–0 (28 KO) June 9, 2018 |
vacant |
| Jamal James United States 27–1 (12 KO) February 4, 2021 |
| WBA | WBC | IBF | WBO | The Ring |
| Josh Taylor United Kingdom 18–0 (13 KO) October 26, 2019 |
Josh Taylor United Kingdom 18–0 (13 KO) May 22, 2021 |
Josh Taylor United Kingdom 18–0 (13 KO) May 18, 2019 |
Josh Taylor United Kingdom 18–0 (13 KO) May 22, 2021 |
Josh Taylor United Kingdom 18–0 (13 KO) October 26, 2019 |
| Gervonta Davis United States 25–0 (24 KO) June 26, 2021 | ||||
| Alberto Puello Dominican Republic 19–0 (10 KO) July 27, 2019 |
| WBA | WBC | IBF | WBO | The Ring |
| Teófimo López United States 16–0 (12 KO) October 17, 2020 |
Devin Haney United States 26–0 (15 KO) October 23, 2019 |
Teófimo López United States 16–0 (12 KO) December 14, 2019 |
Teófimo López United States 16–0 (12 KO) October 17, 2020 |
Teófimo López United States 16–0 (12 KO) October 17, 2020 |
| Gervonta Davis United States 25–0 (24 KO) December 28, 2019 | ||||
| Rolando Romero United States 14–0 (12 KO) August 15, 2020 |
Joseph Diaz United States 32–1–1 (15 KO) July 9, 2021 |
| WBA | WBC | IBF | WBO | The Ring |
| Gervonta Davis United States 25–0 (24 KO) October 31, 2020 |
Oscar Valdez Mexico 29–0 (23 KO) February 20, 2021 |
vacant | Jamel Herring United States 23–2 (11 KO) May 25, 2019 |
vacant |
| Roger Gutiérrez Venezuela 25–3–1 (20 KO) January 2, 2021 | ||||
| Chris Colbert United States 16–0 (6 KO) January 18, 2020 |
Shakur Stevenson United States 16–0 (8 KO) June 12, 2021 |
| WBA | WBC | IBF | WBO | The Ring |
| Léo Santa Cruz Mexico 37–2–1 (19 KO) January 28, 2017 |
Gary Russell Jr. United States 31–1 (18 KO) March 28, 2015 |
vacant | Emanuel Navarrete Mexico 33–1–0–1 (28 KO) October 9, 2020 |
vacant |
| Xu Can China 18–2 (3 KO) January 26, 2019 | ||||
| Eduardo Ramirez Mexico 25–2–3 (12 KO) May 1, 2021 |
| WBA | WBC | IBF | WBO | The Ring |
| Murodjon Akhmadaliev Uzbekistan 9–0 (7 KO) January 30, 2020 |
Brandon Figueroa United States 22–0–1 (17 KO) May 15, 2021 |
Murodjon Akhmadaliev Uzbekistan 9–0 (7 KO) January 30, 2020 |
Stephen Fulton United States 19–0 (8 KO) January 23, 2021 |
vacant |
| Brandon Figueroa United States 22–0–1 (17 KO) April 20, 2019 | ||||
| Ra'eese Aleem United States 18–0 (12 KO) January 23, 2021 |
| WBA | WBC | IBF | WBO | The Ring |
| Naoya Inoue Japan 21–0 (18 KO) November 7, 2019 |
Nonito Donaire Philippines 41–6 (27 KO) May 29, 2021 |
Naoya Inoue Japan 21–0 (18 KO) May 18, 2019 |
Johnriel Casimero Philippines 30–4 (21 KO) November 30, 2019 |
Naoya Inoue Japan 21–0 (18 KO) May 18, 2019 |
| Guillermo Rigondeaux Cuba 20–1–0–1 (13 KO) February 8, 2020 |
Reymart Gaballo Philippines 24–0 (20 KO) December 19, 2020 |
| WBA | WBC | IBF | WBO | The Ring |
| Juan Francisco Estrada Mexico 42–3 (28 KO) March 13, 2021 |
vacant | Jerwin Ancajas Philippines 33–1–2 (22 KO) September 3, 2016 |
Kazuto Ioka Japan 26–2 (15 KO) June 19, 2019 |
Juan Francisco Estrada Mexico 42–3 (28 KO) April 26, 2019 |
| Joshua Franco United States 17–1–2–1 (8 KO) June 23, 2020 |
| WBA | WBC | IBF | WBO | The Ring |
| Artem Dalakian Ukraine 20–0 (14 KO) February 24, 2018 |
Julio Cesar Martinez Mexico 18–1–0–1 (14 KO) December 20, 2019 |
Sunny Edwards United Kingdom 16–0 (4 KO) April 30, 2021 |
Junto Nakatani Japan 21–0 (16 KO) November 6, 2020 |
vacant |
| Luis Concepción Panama 39–8 (28 KO) February 7, 2020 |
McWilliams Arroyo Puerto Rico 21–4 (16 KO) February 27, 2021 |
| WBA | WBC | IBF | WBO | The Ring |
| Hiroto Kyoguchi Japan 15–0 (10 KO) December 31, 2018 |
Kenshiro Teraji Japan 18–0 (10 KO) May 20, 2017 |
Felix Alvarado Nicaragua 36–2 (31 KO) October 29, 2018 |
Elwin Soto Mexico 19–1 (13 KO) June 21, 2019 |
Hiroto Kyoguchi Japan 15–0 (10 KO) December 31, 2018 |
| Esteban Bermudez Mexico 14-3–2 (10 KO) May 28, 2021 | ||||
| Daniel Matellon Cuba 11–0–2 (6 KO) February 7, 2020 |
| WBA | WBC | IBF | WBO | The Ring |
| Thammanoon Niyomtrong Thailand 21–0 (7 KO) June 29, 2016 |
Panya Pradabsri Thailand 36–1 (23 KO) November 27, 2020 |
Rene Mark Cuarto Philippines 19–2–2 (11 KO) February 27, 2021 |
Wilfredo Méndez Puerto Rico 16–1 (6 KO) August 24, 2019 |
vacant |
| Vic Saludar Philippines 21–4 (11 KO) February 20, 2021 | ||||
| Erick Rosa Dominican Republic 4–0 (1 KO) July 21, 2021 |