Flyweight 53.5kg(117lbs) |
| Oriental Rules (modified Thai) | Kickboxing Full Contact (above waist) | Kickboxing Freestyle (low kick) | Muaythai (Full rules) | K-1 Rules |
| World Champion: | World Champion: | World Champion: | World Champion: | World Champion: |
| Paulo Da Silva England 12/06/15 | Paulo Da Silva England 12/06/15 | Paulo Da Silva England 12/06/15 | Paulo Da Silva England 12/06/15 | Paulo Da Silva England 12/06/15 |
| Intercontinental Champion: | Intercontinental Champion: | Intercontinental Champion: | Intercontinental Champion: | Intercontinental Champion: |
| Reiya Takamatsu Japan 14/05/17 | Reiya Takamatsu Japan 14/05/17 | Reiya Takamatsu Japan 14/05/17 | Reiya Takamatsu Japan 14/05/17 | Reiya Takamatsu Japan 14/05/17 |
| European Champion | European Champion | European Champion | European Champion | European Champion |
| Vacant | Vacant | Vacant | Vacant | Vacant |
Bantamweight 55kg (121lbs) |
| Oriental Rules (modified Thai) | Kickboxing Full Contact (above waist) | Kickboxing Freestyle (low kick) | Muaythai (Full rules) | K-1 Rules |
| World Champion: | World Champion: | World Champion: | World Champion: | World Champion: |
| Tenshin Nasukawa Japan 20/05/17 | Ilnaz Sayfullin Russia 26/06/13 | Martin Blanco Argentina 24/11/18 | Shirou Matsumoto Japan 20/05/18 | Eisaku Ogasawara Japan 06/09/17 |
| Intercontinental Champion: | Intercontinental Champion: | Intercontinental Champion: | Intercontinental Champion: | Intercontinental Champion: |
| Vacant | Vacant | Vacant | Vacant | Vacant |
| European Champion | European Champion | European Champion | European Champion | European Champion |
| Alexandre Prilip France 26/01/13 | Mathieu Damiano France 12/06/14 | Vacant | Fred Cordeiro Portugal 24/04/21 | Vacant |
Featherweight 57kg (125lbs) |
| Oriental Rules (modified Thai) | Kickboxing Full Contact (above waist) | Kickboxing Freestyle (low kick) | Muaythai (Full rules) | K-1 Rules |
| World Champion: | World Champion: | World Champion: | World Champion: | World Champion: |
| Giovanni Gross France | Jerome Ardissone France 29/02/20 | Tenshin Nasukawa Japan 02/06/19 | Carlos Coello Spain 15/12/18 | Yanis Goucef France 13/05/17 |
| Intercontinental Champion: | Intercontinental Champion: | Intercontinental Champion: | Intercontinental Champion: | Intercontinental Champion: |
| Silviu Vitez Spain 20/04/19 | Vacant | Vacant | Roberto Oliva Italy 16/02/20 | Antonio Orden Spain 11/03/17 |
| European Champion | European Champion | European Champion | European Champion | European Champion |
| Ahmed Ferradji France 25/11/17 | Marvin Falk France 10/11/12 | Luc Genieys France 24/06/21 | Silviu Vitez Spain 21/08/21 | Jorge Varela Spain 08/04/17 |
Super-featherweight 59kg (129lbs) |
| Oriental Rules (modified Thai) | Kickboxing Full Contact (above waist) | Kickboxing Freestyle (low kick) | Muaythai (Full rules) | K-1 Rules |
| World Champion: | World Champion: | World Champion: | World Champion: | World Champion: |
| | | | |
| Intercontinental Champion: | Intercontinental Champion: | Intercontinental Champion: | Intercontinental Champion: | Intercontinental Champion: |
| | | | |
| European Champion | European Champion | European Champion | European Champion | European Champion |
| | | | |
Lightweight 61kg (134lbs) |
| Oriental Rules (modified Thai) | Kickboxing Full Contact (above waist) | Kickboxing Freestyle (low kick) | Muaythai (Full rules) | K-1 Rules |
| World Champion: | World Champion: | World Champion: | World Champion: | World Champion: |
| Intercontinental Champion: | Intercontinental Champion: | Intercontinental Champion: | Intercontinental Champion: | Intercontinental Champion: |
| European Champion | European Champion | European Champion | European Champion | European Champion |
Welterweight 67kg (147lbs) |
| Oriental Rules (modified Thai) | Kickboxing Full Contact (above waist) | Kickboxing Freestyle (low kick) | Muaythai (Full rules) | K-1 Rules |
| World Champion: | World Champion: | World Champion: | World Champion: | World Champion: |
| Intercontinental Champion: | Intercontinental Champion: | Intercontinental Champion: | Intercontinental Champion: | Intercontinental Champion: |
| European Champion | European Champion | European Champion | European Champion | European Champion |
Super-welterweight 70kg (154lbs) |
| Oriental Rules (modified Thai) | Kickboxing Full Contact (above waist) | Kickboxing Freestyle (low kick) | Muaythai (Full rules) | K-1 Rules |
| World Champion: | World Champion: | World Champion: | World Champion: | World Champion: |
| Intercontinental Champion: | Intercontinental Champion: | Intercontinental Champion: | Intercontinental Champion: | Intercontinental Champion: |
| European Champion | European Champion | European Champion | European Champion | European Champion |
Light-middleweight 72.5kg (159lbs) |
| Oriental Rules (modified Thai) | Kickboxing Full Contact (above waist) | Kickboxing Freestyle (low kick) | Muaythai (Full rules) | K-1 Rules |
| World Champion: | World Champion: | World Champion: | World Champion: | World Champion: |
| Intercontinental Champion: | Intercontinental Champion: | Intercontinental Champion: | Intercontinental Champion: | Intercontinental Champion: |
| European Champion | European Champion | European Champion | European Champion | European Champion |
Middleweight 75kg (165lbs) |
| Oriental Rules (modified Thai) | Kickboxing Full Contact (above waist) | Kickboxing Freestyle (low kick) | Muaythai (Full rules) | K-1 Rules |
| World Champion: | World Champion: | World Champion: | World Champion: | World Champion: |
| Intercontinental Champion: | Intercontinental Champion: | Intercontinental Champion: | Intercontinental Champion: | Intercontinental Champion: |
| European Champion | European Champion | European Champion | European Champion | European Champion |
Super-middleweight 78kg (171lbs) |
| Oriental Rules (modified Thai) | Kickboxing Full Contact (above waist) | Kickboxing Freestyle (low kick) | Muaythai (Full rules) | K-1 Rules |
| World Champion: | World Champion: | World Champion: | World Champion: | World Champion: |
| Intercontinental Champion: | Intercontinental Champion: | Intercontinental Champion: | Intercontinental Champion: | Intercontinental Champion: |
| European Champion | European Champion | European Champion | European Champion | European Champion |
Light-heavyweight 81.5kg (179lbs) |
| Oriental Rules (modified Thai) | Kickboxing Full Contact (above waist) | Kickboxing Freestyle (low kick) | Muaythai (Full rules) | K-1 Rules |
| World Champion: | World Champion: | World Champion: | World Champion: | World Champion: |
| Intercontinental Champion: | Intercontinental Champion: | Intercontinental Champion: | Intercontinental Champion: | Intercontinental Champion: |
| European Champion | European Champion | European Champion | European Champion | European Champion |
Light-cruiserweight 85kg (187lbs) |
| Oriental Rules (modified Thai) | Kickboxing Full Contact (above waist) | Kickboxing Freestyle (low kick) | Muaythai (Full rules) | K-1 Rules |
| World Champion: | World Champion: | World Champion: | World Champion: | World Champion: |
| Intercontinental Champion: | Intercontinental Champion: | Intercontinental Champion: | Intercontinental Champion: | Intercontinental Champion: |
| European Champion | European Champion | European Champion | European Champion | European Champion |
Cruiserweight 88.5kg (194lbs) |
| Oriental Rules (modified Thai) | Kickboxing Full Contact (above waist) | Kickboxing Freestyle (low kick) | Muaythai (Full rules) | K-1 Rules |
| World Champion: | World Champion: | World Champion: | World Champion: | World Champion: |
| Intercontinental Champion: | Intercontinental Champion: | Intercontinental Champion: | Intercontinental Champion: | Intercontinental Champion: |
| European Champion | European Champion | European Champion | European Champion | European Champion |
Super-cruiserweight 95kg (209lbs) |
| Oriental Rules (modified Thai) | Kickboxing Full Contact (above waist) | Kickboxing Freestyle (low kick) | Muaythai (Full rules) | K-1 Rules |
| World Champion: | World Champion: | World Champion: | World Champion: | World Champion: |
| Intercontinental Champion: | Intercontinental Champion: | Intercontinental Champion: | Intercontinental Champion: | Intercontinental Champion: |
| European Champion | European Champion | European Champion | European Champion | European Champion |
Heavyweight 100kg (220lbs) |
| Oriental Rules (modified Thai) | Kickboxing Full Contact (above waist) | Kickboxing Freestyle (low kick) | Muaythai (Full rules) | K-1 Rules |
| World Champion: | World Champion: | World Champion: | World Champion: | World Champion: |
| Intercontinental Champion: | Intercontinental Champion: | Intercontinental Champion: | Intercontinental Champion: | Intercontinental Champion: |
| European Champion | European Champion | European Champion | European Champion | European Champion |
Super-heavyweight +100kg (220lbs) |
| Oriental Rules (modified Thai) | Kickboxing Full Contact (above waist) | Kickboxing Freestyle (low kick) | Muaythai (Full rules) | K-1 Rules |
| World Champion: | World Champion: | World Champion: | World Champion: | World Champion: |
| Intercontinental Champion: | Intercontinental Champion: | Intercontinental Champion: | Intercontinental Champion: | Intercontinental Champion: |
| European Champion | European Champion | European Champion | European Champion | European Champion |
