Rick John Roufus is a retired American kickboxer. He has also competed professionally in boxing and mixed martial arts. An accomplished professional fighter throughout his competitive career, Roufus has won multiple world championships across the globe in several weight classes, he was world champion as a super middle weight, light heavyweight and heavyweight. Roufus held titles for all the major kickboxing associations worldwide, and is known for his boxing skills and powerful kicks. He is the older brother of Duke Roufus who is also a kickboxer and a Muay Thai and mixed martial arts instructor. Rick Roufus is the Global Director of Fighter Development for PKA Worldwide. In 2012 Rick Roufus was inducted into the World Kickboxing League Hall of Fame.
Azem Maksutaj is a Swiss former kickboxer who competed in the lightweight, welterweight, middleweight, super middleweight, light heavyweight, cruiserweight and heavyweight divisions. Originally from Kosovo, he relocated to Switzerland at an early age where he began training in Muay Thai at fifteen. After capturing the Swiss national title at lightweight during his first year of competition in 1992, he then went on to win European and world honours 1994 while fighting around the 77 kg super middleweight mark. The late 1990s saw Maksutaj move between light heavyweight and cruiserweight, taking five world titles in those divisions, before eventually making the jump to heavyweight in 2001 where he spent the remainder of his career, acting as a journeyman in the K-1 promotion while also winning another four world titles.
Jörgen Ingmar Kruth is a retired Swedish professional kickboxer and mixed martial artist. He is a former two time World Muay Thai Council Heavyweight Muaythai World Champion. He is considered to be among the greatest Scandinavian kickboxers of all time.
Ray Sefo is a New Zealand fight promoter and retired kickboxer, boxer, and mixed martial artist of Samoan descent. He was the K-1 World Grand Prix 2000 Runner-up, is a six-time Muay Thai World Champion, and was an eight time K-1 World Grand Prix Finals tournament participant. He is the president of MMA promotion Professional Fighters League. In kickboxing, he defeated world champions Jerome Le Banner, Peter Aerts, Stefan Leko, Mike Bernardo, and Mark Hunt. He is widely considered to be one of the greatest heavyweight kickboxers to have never won the K-1 World Grand Prix.
Peter Aerts is a Dutch semi-retired kickboxer. Known for his devastating high kicks, which earned him the nickname "The Dutch Lumberjack", he is widely considered to be one of the greatest heavyweight kickboxers of all time.
Kaoklai Kaennorsing is a former Thai light heavyweight Muay Thai fighter. Kaennorsing is the K-1 World Grand Prix 2004 in Seoul tournament winner, former two-division Rajadamnern Stadium champion, and former WBC Muay Thai Light Heavyweight Champion.
Glaube Araújo Feitosa is a Brazilian former kickboxer and a kyokushin full contact karate practitioner who was competing in K-1. In 2005, Feitosa won K-1 World Grand Prix 2005 in Las Vegas tournament and was a K-1 World Grand Prix 2005 finalist. He has gone the distance with some of the top fighters in his time, such as Peter Aerts, Remy Bonjasky, Semmy Schilt and Errol Zimmerman. An accomplished karate fighter, he was known for his use of the "question mark kick," utilizing the technique in several knockout victories in his career. Feitosa also holds wins over Cheick Kongo, Alistair Overeem, Ruslan Karaev, and Paul Slowinski.
Zabit Samedov is an Azerbaijani kickboxer and muay thai fighter. Samedov has won multiple titles, most notably the K-1 World Grand Prix 2009 in Łódź tournament championship. He was also a competitor in the K-1 World Grand Prix 2012 final 8, and is a former It's Showtime 95MAX World Championship challenger.
Paul "The Sting" Slowinski is a Polish kickboxer, a four-time World Muay Thai Council (WMC) Muay Thai World champion and two-time K-1 World GP 2006 in Auckland and K-1 World GP 2007 in Amsterdam champion. After two years training in Amsterdam, Netherlands under Ernesto Hoost, Slowinski moved back to Adelaide in 2009 and began to teach and train out of Rikers Gym. He has competed in the K-1 and SUPERKOMBAT promotions.
Stefan Leko is a German heavyweight kickboxer. He is the current WKA Super-Heavyweight world champion in kickboxing, and former Muay Thai world super-heavyweight champion and Kickboxing world super-heavyweight champion, WMTA, WKN, IKBO, IKBF, and WKA world champion, K-1 European Grand Prix 1998 champion, 1999 K-1 Dream champion and two time K-1 World Grand Prix in Las Vegas tournament champion. He fights out of Team Golden Glory in Breda, Netherlands under Cor Hemmers. Since 2011 Stefan Leko is coached and managed by Tom Trautsch and won two Heavyweight World Champion Titles.
Björn Heinrich Walter Bregy is a Swiss heavyweight kickboxer, European Yoseikan Budo champion and K-1 Europe 2006 in Amsterdam tournament Champion. He holds notable wins over Gokhan Saki, Ray Sefo, Alexander Ustinov, Freddy Kemayo (twice), and Alexey Ignashov.
Siala-Mou Siliga, often billed as Mighty Mo is a former American Samoan kickboxer, bare knuckle boxer, boxer and mixed martial artist who competed in the Heavyweight division. His K-1 achievements include winning the K-1 World Grand Prix 2004 in Las Vegas II and the K-1 World Grand Prix 2007 in Hawaii tournaments. In mixed martial arts, he has competed for K-1 Hero's, Bellator MMA, DREAM, Road FC and also participated in the Dynamite!! USA and Dynamite!! 2008 events. On September 24, 2016, Siliga won the Road FC Openweight Tournament at Road FC 33 by knocking out Choi Hong-man of South Korea.
Douglas Ma'afu Hawke, better known as Doug "Vicious" Viney is a Tongan-New Zealander heavyweight boxer and kickboxer. He is the K-1 World GP 2007 in Las Vegas champion, who also represented Tonga as a super heavyweight boxer under the name of Ma'afu Hawke at 2004 Summer Olympics in Athens, Greece.
Ariel Mastov is an Israeli kickboxer and former 8 times WPKA Kobukan Karate champion, currently competing in K-1 fighting circuit.
Richard P. "Rick" Cheek is an American kickboxer and mixed martial artist who competes in the heavyweight division. A North American Muay Thai champion as an amateur, Cheek turned professional in 2005 and debuted in K-1 the same year. He holds notable wins over WSOF standout Dave Huckaba in MMA, 2001 K-1 Japan Grand Prix Champion Nicholas Pettas and multiple time world kickboxing champion Mike Sheppard.
Dževad Poturak is a Bosnian heavyweight kickboxer, fighting out of Jumruk Gym in Sarajevo, Bosnia and Herzegovina. He is the former WAKO Pro World Low-Kick champion and K-1 Fighting Network Prague 2007 tournament champion.
Jean-Claude Leuyer, or simply Jean Claude, is an American former heavyweight kickboxer. He was a six-time world champion, holding titles in four different organizations, and competing in sixteen world title fights. He holds notable wins over Rob Kaman and Tomasz Kucharzewski in K-1.
Grégory Tony is a French heavyweight kickboxer and professional boxer fighting out of Paris. He is three time French kickboxing champion, three time French muaythai champion, one time French boxing champion, two time European kickboxing champion, one time Intercontinental muaythai champion and two time muaythai world champion.
Dewey Cooper is an American former kickboxer and boxer who competed in the cruiserweight and heavyweight divisions. After becoming a two-time world champion in 2000 by taking the WKC heavyweight and WKF cruiserweight titles, he would go on to become a regular competitor in the K-1 promotion's US events. He came close to winning a K-1 Grand Prix Tournament when he defeated Nobu Hayashi and Samoan power puncher Mighty Mo, but lost out to Michael McDonald in the final of the K-1 World Grand Prix 2004 in Las Vegas I all in the same night.
Sergiano Herbert Cairo, better known as Redouan Cairo is a Surinamese-Dutch kickboxer fighting in the Superkombat Fighting Championship where he is the 2013 Superkombat World Grand Prix Tournament Runner-up. Also a Mixed martial artist, he is a former WAKO-Pro world cruiser heavyweight K-1 rules -94.1 kg champion.
