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.
Wins IBF and IBO world titles; vacates IBO title in 01.
Frank Toledo
2001-04-06
Las Vegas, NV, USA
Manuel Medina [3]
2001-11-16
Las Vegas, NV, USA
Johnny Tapia
2002-04-27
New York, NY, USA
Stripped of the title on 02-10-01 for refusing to fight mandatory challenger Juan Manuel Márquez.
Juan Manuel Márquez
2003-02-01
Las Vegas, NV, USA
Defeats Manuel Medina; stripped of the title on 05-08-15 when no promoter has intention to to bid at least $50,000US to promote a mandatory defense against Fahprakorb Rakkiatgym.
Valdemir Pereira
2006-01-20
Mashantucket, CT, USA
Defeats Fahprakorb Rakkiatgym.
Eric Aiken
2006-05-13
Boston, MA, USA
Robert Guerrero
2006-09-02
Los Angeles, CA, USA
Orlando Salido
2006-11-04
Las Vegas, NV, USA
Stripped of the title on 06-11-08 after testing positive for the steroid.
Robert Guerrero [2]
2007-02-23
Copenhagen, DEN
Defeats Spend Abazi; vacates on 08-06-23 due to an inability to make weight.
Cristobal Cruz
2008-10-23
MEX
Defeats Orlando Salido.
Orlando Salido [2]
2010-05-15
Ciudad Obregón, MEX
Yuriorkis Gamboa
2010-09-11
Las Vegas, NV, USA
Stripped of the title on 11-03-26 after missing a mandated second weigh-in on the day of his match against Jorge Solís.
Billy Dib
2011-07-29
Homebush, AUS
Defeats Jorge Lacierva.
Evgeny Gradovich
2013-03-01
Mashantucket, CT, USA
Lee Selby
2015-05-30
London, ENG, GBR
Josh Warrington
2018-05-19
Leeds, ENG, GBR
Vacates on 21-01-21 after IBF refuses to sanction a unification match with WBA (regular) World Title.
