PKO – Professional Kickboxing Organization
PO-Box 44 16, S-203 15 Malmö
World Kickboxing Ratings (Fullcontact) of 1991
Commissioners: Benny Hedlund, Michael Deubner
Featherweight -54 Kg
Champ: Johnny Gevrie Sweden
Contenders
1, Graham McGrath England
2, Massimo Spinelli Italy
3, Oscar Ballogh Hungary
4, Carl Sklavos USA,
5, Danny Melendez USA
6, Miquel Montoya USA
7, Rico Brockington USA
8, Antal Dahak France
9, Paul Vilani Belgien
10, Lawrence Mierra USA
11, Peter Hiereth Germany
12, Samir El-Quandili France
Bantamweight -57 Kg
Champ: Troy Dorsey USA

Contenders:
1, Steve Demencuk USA
2, Murath Cömert Germany
3, Felipe Garcia USA
4, Adalberto Leal USA
5, David Barber USA
6, Alexej Nechaev GUS
7, Angel Romero Switzerland
8, Brahim Rahal Algeria
9, Paul Lenihan Ireland
10, Jose Cassado Spain
11, Massimo Rizzoli Italy
12, Darren Evans England
Lightweight -60 Kg
Champ: Michael Kuhr Germany

Contenders:
1, Dennis Sigö Sweden
2, Gilbert Ballentine Holland
3, Ramon Dekkers Holland
4, Bogdan Sawicki Polen
5, Santae Wilson USA
6, Piotr Siegoczynski Polen
7, Michelle Rochette Canada
8, Ivan Aksutin GUS
9, Massimo Ulissi Italy
10, Jerome Canabate Switzerland
11, Elvis Parsley England
12, Helge Halvordsen Norway
Light-Welterweight -63.5 Kg
Champ: Georgio Perecca Italy

Contenders:
1, Pete Cunningham USA
2, Andy Morgan England
3, Brian Dorsey USA
4, Gerald Mamadeus Holland
5, Janoz Gonczi Hungary
6, Thomas Chesterfield USA
7, Khalid Rahilou France
8, Wojchech Wiertel Poland
9, Pat Romero USA
10, Dave Johnston USA
11, Jorge Angot USA
12, Richard Sylla France
Welterweight -67 Kg
Champ: Trevor Ambrose England
Contenders:
1, Massimo Liberati Italy
2, Curtis Bush USA
3, Billy Murray Ireland
4, Jerry Trimble USA
5, Patrice Prando France
6, Klemens Willner Germany
7, Andre Alban France
8, Paul Biafore Canada
9, Ihmed Matlouti France
10, Piotr Falender Poland
11, Lahksem Musti Germany
12, Peter Manfredo USA
Light-Middleweight: -71 Kz
Champ: Jose Egusquisa Spain

Contenders:
1, Oliver Payet France
2, Kash Grill England
3, Richard Hill USA
4, Sam Montgomery USA
5, Ricky Haynes USA
6, Ivan Hippolyte Holland
7, Dale Cook USA
8, Gary Landrith USA
9, Paolo Liberati Italy
10, Andre Panza France
11, Franz Haller Italy
12, Gerard Zdiarski Poland
Middleweight: -75 Kg
Champ: Ferdinand Mack Germany

Contenders:
1, Robert Harris USA
2, John Longstreet USA
3, Mike Winklejohn USA
4, Ralf Kunzler Germany
5, Christian Batesti France
6, Michel Louart France
7, Jozef Warchol Poland
8, Frank Scheuermann Germany
9, Steve Shepard USA
10, Sinja Andreasevic Jogoslavia
11, Egon Mayer Jugoslavia
12, Zijo Pilyo Germany
Light-Heavyweight -81 Kg
Champ: Don Wilson USA

1, Jean-Ives Theriault Canada
2, Rick Roufus USA
3, Marek Piotrowski USA
4, Peter Smith Holland
5, Rob Kaman Holland
6, Ernesto Hoost Holland
7, Pawel Rumas Poland
8, Larry McFadden USA
10, Marc Longo USA
11, Sylvester Cash USA
12, Stefan Hoffmann Germany
Heavyweight -88.5 Kg
Champ: vakant
1, Przemyslav Saleta Poland
2, James Warring USA
3, Dennis Alexio USA
4, Darell Hennegan Canada
5, Jan Wessels Holland
6, Branimar Cikatic Jugoslavia
7, Jeff Hollins USA
8, Jim Graden USA
9, Bruno Campiglia Italy
10, Dave Taylor England
11, Andre Manaart Holland
12, Georgios Peresterez Germany
Super-Heavyweight – no limit
Champ: vakant
1, Jerry Rhome USA
2, Brad Hefton USA
3, Tom Hall USA
4, Maurice Smith USA
5, Lawrence White England
6, Raymond Horsey USA
7, Bill Morrison USA
8, Gabor Peko Hungary
9, Ray Hoffmann England
10, Klaus Osterrieder Germany
11, Vitaly Klitschko Ukaraine
12, Anthony Elmore USA
The PKO sanctioned fullcontact fights from 1988 until 1996. It was the original professional kickboxing arm of WAKO at its time.