Following the name of the champion(s): Indicates the number of times the competitor has held that title at that point.
[...]
Indicates a gap in the listing where title changes are not known.
<
Title was held or changed hands no later than this. In these cases, it is known that a competitor held the title at a certain time but not when he/she won it.
@
Order uncertain. Different titleholders may be known for the same year, for example, but it is not known who held the title before whom.
#
Unofficial or disputable claims. These are usually matches that certainly took place, but where there is doubt that the competitor shown should be recognized as a true title holder. These listings are also italicized.
World Boxing Organization
World Junior Middleweight Title (as of 2025-08-15)
* Bolded letters in the competitor's name, if any, indicate the surname/family name.
John David Jackson
1988-12-08
Detroit, MI, USA
Defeats Lupe Aquino; vacates in 93 to move up to the middleweight class.
Verno Phillips
1993-10-30
Phoenix, AZ, USA
Defeats Lupe Aquino.
Paul Jones
1995-11-22
Sheffield, ENG, GBR
Stripped of the title in 96-02.
Bronco McKart
1996-03-01
Indio, CA, USA
Defeats Santos Cardona.
Winky Wright (Ronald Wright)
1996-05-17
Monroe, MI, USA
Harry Simon
1998-08-22
Temba, RSA
Vacates in 01-07 to move up to the middleweight class.
Daniel Santos
2002-03-16
Las Vegas, NV, USA
Defeats Luis Campas.
Sergiy Dzindziruk
2005-12-03
Magdeburg, GER
Stripped of the title 11-10-05 due to inactivity caused by injuries.
Zaurbek Baysangurov
2011-10-05
Interim champion since defeating Mike Miranda on 11-07-30 in Odessa, UKR; status promoted on 11-10-05; also holds IBO World Title; stripped of the IBO title in 12; stripped of the WBO title in 13-06 due to inactivity.
Demetrius Andrade
2013-11-09
Corpus Christi, TX, USA
Defeats Vanes Martirosyan; stripped of the title on 15-07-31 due to inactivity.
Liam Smith
2015-10-10
Manchester, ENG, GBR
Defeats John Thompson.
Canelo Álvarez (Saúl Álvarez)
2016-09-17
Arlington, TX, USA
Vacates on 17-05-19 to move up to the middleweight class.
Miguel Cotto
2017-08-26
Carson, CA, USA
Defeats Kamegai Yoshihiro.
Sadam Ali
2017-12-02
New York, NY, USA
Jaime Munguia
2018-05-12
Verona, NY, USA
Vacates on 19-11-23 to move up to the middleweight class.
Patrick Teixeira
2019-12-04
Interim champion since defeating Carlos Adames on 19-11-30 in Las Vegas, NV, USA; states elevated on 19-12-04.
Brian Castaño
2021-02-13
Indio, CA, USA
Fights WBC & WBA Super & IBF world champion Jermell Charlo to a draw on 21-07-17.
Jermell Charlo
2022-05-14
Carson, CA, USA
Also holds WBC, WBA, and IBF world titles; stripped of WBO title on 23-09-30 after refusing to defend the title against Tim Tszyu.
Tim Tszyu
2023-09-30
Interim champion since defeating Tony Harrison on 23-03-12; status promoted.
Sebastian Fundora
2024-03-30
Las Vegas, NV, USA
Also wins the vacant WBC World Title; stripped of the WBO title on 25-05-02 for honouring the rematch clause exercised by Tszyu instead of facing the mandatory challenger Xander Zayas.
