List of WBO world champions
Junior heavyweight
This weight class is designated as cruiserweight by the WBA, WBC, and IBF.

List of WBO world champions

Section Title: Junior heavyweight
Table Section Text: This weight class is designated as cruiserweight by the WBA, WBC, and IBF.

Name:	Date:	Location:	Defenses:

United States Boone Pultz def. Magne Havnå	December 3, 1989	Copenhagen, Denmark	0

Norway Magne Havnå	May 17, 1990	Aars, Denmark	2

Title vacated	1991	Havnå's last defense was against Tyrone Booze on February 15, 1991 in Randers, Denmark.

United States Tyrone Booze def. Derek Angol	July 25, 1992	Manchester, England	1

Germany Markus Bott	February 13, 1993	Hamburg, Germany	0

Argentina Nestor Hipolito Giovannini	June 26, 1993	Hamburg, Germany	1

Poland Dariusz Michalczewski	December 17, 1994	Hamburg, Germany	0

Title vacated	1995	Michalczewski vacated the title in favor of the WBO Light Heavyweight title, which he already held.

Germany Ralf Rocchigiani def. Carl Thompson	June 10, 1995	Manchester, England, United Kingdom	6

United Kingdom Carl Thompson	October 4, 1997	Hanover, Germany	2

United Kingdom Johnny Nelson	March 27, 1999	Derby, England	13

Title vacated	2006	Title vacated when Nelson retired. Last defense on November 26, 2005 against Vincenzo Cantalore

United Kingdom Enzo Maccarinelli Interim champ promoted	July 8, 2006	Cardiff, Wales	4

United Kingdom David Haye	March 8, 2008	London, England	0

Title vacated	2008	Title vacated when Haye decided to move up to Heavyweight.

Argentina Victor Emilio Ramírez Interim champ promoted	February 2009	N/A	1

Germany Marco Huck	December 5, 2009	Ludwigsburg, Germany	13

Poland Krzysztof Głowacki	August 14, 2015	Newark, United States	1

Ukraine Oleksandr Usyk current champion	September 17, 2016	Gdansk, Poland	6

Sentence(s)

On August 14, 2015, Głowacki won the WBO junior-heavyweight title.

final_sentence: On August 14, 2015, Głowacki won the WBO junior-heavyweight title.