Boxing champions list

With 17 weight classes in boxing and four major sanctioning bodies that bestow world titles, keeping track of who holds each of the belts can be difficult -- especially when there are sometimes multiple titlists in each organization because of interim and secondary belts.

To make it easier for boxing fans, below is a quick reference chart of who holds each of the titles in the four organizations

To check the top 10 fighters in each division, visit ESPN's divisional rankings.

For a list of the best fighters regardless of weight class, check ESPN's pound-for-pound rankings.

WBA: Oleksandr Usyk**

WBC: Oleksandr Usyk***

*Joseph Parker is the WBO heavyweight interim champion

**Kubrat Pulev is the WBA "regular" heavyweight champion, and Fabio Wardley is the WBA interim heavyweight champion

***Agit Kabayel is the WBC heavyweight interim champion

WBO: Gilberto Ramirez

WBA: Gilberto Ramirez

*Callum Smith is the WBO light heavyweight interim champion

**David Benavidez is the WBA "regular" light heavyweight champion

WBO: Terence Crawford

IBF: Terence Crawford

WBA: Terence Crawford*

WBC: Terence Crawford**

*Caleb Plant is the WBA super middleweight interim champion

**Christian Mbilli is the WBC super middleweight interim champion

WBO: Janibek Alimkhanuly

IBF: Janibek Alimkhanuly

IBF: Bakhram Murtazaliev

WBC: Sebastian Fundora*

*Vergil Ortiz Jr. is the WBC junior middleweight interim champion

WBO: Brian Norman Jr.

*Rolando Romero is the WBA "regular" champion.

WBO: Teofimo Lopez Jr.

IBF: Richardson Hitchins

WBA: Gary Antuanne Russell

*Devin Haney is the WBC junior welterweight champion in recess, and Isaac Cruz is the WBC interim champion

IBF: Raymond Muratalla

WBC: Shakur Stevenson

WBO: Emanuel Navarrete

WBC: O'Shaquie Foster

*Albert Batyrgaziev is the WBA junior lightweight interim champion

*Rey Vargas is the WBC featherweight champion in recess and Bruce Carrington is the WBC interim featherweight champion

WBO: Christian Medina

*Nonito Donaire is the WBA bantamweight interim champion

IBF: Willibaldo Garcia Perez

WBA: Fernando Martinez*

*David Jimenez is the WBA junior bantamweight interim champion

WBO: Anthony Olascuaga

IBF: Masamichi Yabuki

WBA: Ricardo Sandoval

WBC: Ricardo Sandoval*

*Francisco Rodriguez is the WBC flyweight interim champion

WBC: Carlos Canizales

WBC: Melvin Jerusalem