Date
Champions
Opponents
Score, Location

World Boxing Organization
1996-06-29
AKINWANDE Henry
WILLIAMS Jeremy
Knockout 3/12
Indio, USA
Henry Akinwande won vacant WBO heaveweight title after Riddick Bowe was stripped of his belt for signing to fight Andrew Golota instead of No. 1 ranked WBO contender.
1995-05-17
BOWE Riddick
GONZALEZ Jorge Luis
Knockout 6/12
Las Vegas, USA
1995-03-11
BOWE Riddick
HIDE Herbie
Knockout 6/12
Las Vegas, USA
1994-03-19
HIDE Herbie
BENTT Michael
Knockout 7/12
London, United Kingdom
1993-10-29
BENTT Michael
MORRISON Tommy
Technical Knockout 1/12
Tulsa, USA
1993-08-30
MORRISON Tommy
TOMASHEK Tim
Technical Knockout 4/12
Kansas City, USA
1993-06-07
MORRISON Tommy
FOREMAN George
Unanimous Decision 12/12
Las Vegas, USA
Tommy Morrison captured vacant title after Michael Moorer decided not to defend the WBO heavyweight belt and relinquished the title.
1992-05-15
MOORER Michael
COOPER Bert
Technical Knockout 5/12
Atlantic City, USA
Michael Moorer won vacant title after Ray Mercer was stripped of the WBO belt to fight a 1992 elimination bout with Larry Holmes.
1991-10-18
MERCER Ray
MORRISON Tommy
Technical Knockout 5/12
Atlantic City, USA
1991-01-11
MERCER Ray
DAMIANI Francesco
Knockout 9/12
Atlantic City, USA