2/13/93
Markus Bott UD 12 Tyrone Booze
Germany
7/25/92
Tyrone Booze KO7 Derek Angol/Vacant
Title
England
5/17/90
Magne Havnaa TKO 5 Richard Boonee
Pultz
Denmark
12/3/89
Richard Boonee Pultz SD 12 Magne
Havnaa
Denmark
LIGHT HEAVYWEIGHT
5/19/11
Nathan Cleverly became WBO Champion
after Juergen Braehmer
England
didn't show up for the fight
12/11/10
Nathan Cleverly UD12 Nadjib
Mohammedi for Interim title
England
after Juergen Braehmer was injured
8/22/09
11/21/2009
Juergen Braehmer TKO 11 Aleksy
Kuziemski/Vacant title
Zsolt Erdei relinquished his title to move
to Jr. Heavyweight
9/27/08
Denis Inkin UD 12 Fulgencio Zuñiga
9/24/08
Calzaghe relinquishes his WBO Title
5/7/05
Hungary
Joe Calzaghe TKO6 Mario Veit
5/8/04
Mario Veit SD12 Kabary Salem
Germany
WBO Title
1/17/04
Zsolt Erdei UD 12 Julio González
Germany
10/18/03
Julio González SD 12 Dariusz
Michalczewski
Germany
6/13/97
Dariusz Michalczewski UD 12 Virgil Hill
Germany
Unifies WBO/WBA/IBF Titles
9/10/94
Germany
Dariusz Michalczewski UD 12 Leoonzer
Barber
Germany
5/9/91
Leoonzer Barber TKO 6 Tom Collins
England
1/1/91
Moorer Vacates to Fight for WBO
Heavyweight
12/3/88
Michael Moorer TKO 5 Ramzi Hassan
Interim Champion
10/11/97
Joe Calzaghe UD 12 Chris Eubank
10/2/97
Steve Collins Retires
3/18/95
Steve Collins UD 12 Chris Eubank
England
9/21/91
Chris Eubank TKO 12 Michael Watson
England
4/4/91
Thomas Hearns Vacates Title to Fight in
Ohio
Thomas Hearns MD 12 James Kinchen
Robert Stieglitz TKO 4 Arthur Abraham
Germany
8/25/12
Arthur Abraham UD12 Robert Stieglitz
Germany
8/22/09
Robert Stieglitz TKO 11 Karoly Balzsay
Hungary
1/10/09
Karoly Balzsay UD12 Denis Inkin
Germany
Nevada
MIDDLEWEIGHT
10/20/12
3/23/13
England
Light Heavyweight division
11/4/88
SUPER-MIDDLEWEIGHT
Germany
Peter Quillin UD 12 Hassan N'Dam
N'Jikam
8/25/12
Hassan N'Dam N'Jikam became
Champion
8/25/12
New York, USA
Dmitry Pirog didn't face mandatory
N'Jikam; decided to face Golovkin;
accord allows entering ring w/belt even
bout doesn't occurs he vacates title
5/4/12
Hassan N'Dam N'Jikam vs. Max Bursak/
Interim title
France
7/31/10
Dmitry Pirog TKO 5 Daniel Jacobs/Vacant
title
Las Vegas,
NV/USA
5/29/10
Sergio Martinez was stripped according to
the WBO Rules and Regulations
Rule 15. C. Martinez had hold two
differents weight Class (154 & 160)
4/17/10
Sergio Martinez UD 12 Kelly Pavlik
unification title
Ohio/USA
9/29/07
Kelly Pavlik TKO7 Jermaine Taylor
New Jersey
7/16/05
Jermaine Taylor SD 12 Bernard Hopkins
Nevada
9/18/04
Bernard Hopkins KO9 Oscar De La Hoya
Nevada
6/5/04
Oscar De La Hoya UD 12 Felix Sturm
Nevada
9/13/03
Felix Sturm SD 12 Héctor Velázco
Germany
5/10/03
Héctor Velázco RTD 8 Andras Galfi
Argentina
WBO 26 Years • 75