SUPER-HEAVYWEIGHT
( over 230 lbs, 104.50 kg)

World Champion:
Steve Bonner (AUS)
Won title:
Last defense: -

HEAVYWEIGHT
( 230 lbs, 104.50 kg)

World Champion:
Fabiona Cyclone (BRA/JAP)
Won title: June 09, 2012
Last defense: -

SUPER-CRUISERWEIGHT
(210 lbs, 95.454 kg)

World Champion:
Steve Mckinnon (AUS)
Won title: June 20, 2008
Last defense: June 09, 2012

CRUISERWEIGHT
(190 lbs, 86.363 kg)

World Champion:
Vacant
Won title: -
Last defense: -

LIGHT-HEAVYWEIGHT
(175 lbs, 79.379 kg)

World Champion:
Vacant
Won title: -
Last defense: -

SUPER-MIDDLEWEIGHT
(168 lbs, 76.364 kg)

World Champion:
Gregory Choplan (FRA)

Won title: May 05, 2013
Last defense: -

MIDDLEWEIGHT
(160 lbs, 72.575 kg)

World Champion:
Rafael Llodra (FRA)
Won title: Mar 09, 2013
Last defense: -

SUPER-WELTERWEIGHT
(154 lbs, 69.853 kg)

World Champion:
Kem Sitsongpeenong (THA)
Won title: June 09, 2012
Last defense: Sep 07, 2013

WELTERWEIGHT
(147 lbs, 66.678 kg)

World Champion:
Medhi Zatout (FRA)
Won title:
Sep 07, 2013
Last defense: -

SUPER-LIGHTWEIGHT
(140 lbs, 63.503 kg)

World Champion:
Saketdao Petchpayatai (THA)
Won title: October 21, 2011
Last defense: May 16, 2013

LIGHTWEIGHT
(135 lbs, 61.235 kg)

World Champion:
Jomtong Chuwattana (THA)
Won title: Nov 04, 2011
Last defense: June 09, 2012

SUPER-FEATHERWEIGHT
(130 lbs, 58.967 kg)

World Champion:
Vacant
Won title: -
Last defense: -

FEATHERWEIGHT
(126 lbs, 57.153 kg)

World Champion:
Vacant
Won title: -
Last defense: -

SUPER-BANTAMWEIGHT
(122 lbs, 55.338 kg)

World Champion:
Kaimukdum Chuwattana (THA)
Won title: Nov 04, 2011
Last defense: -

BANTAMWEIGHT
(118 lbs, 53.524 kg)

World Champion:
Vacant
Won title: -
Last defense: -

SUPER-FLYWEIGHT
(115 lbs, 52.163 kg)

World Champion:
Vacant
Won title: -
Last defense: -

FLYWEIGHT
(112 lbs, 50.802 kg)

World Champion:
Vacant
Won title: -
Last defense: -

LIGHT-FLYWEIGHT
(108 lbs, 48.988 kg)

World Champion:
Vacant
Won title: -
Last defense: -

MINIFLYWEIGHT
(105 lbs, 47.627 kg)

World Champion:
Nichaow Suwitgym (THA)
Won title: 05 Jan, 2013
Last defense: -