Ray Sefo is a New Zealand fight promoter and retired kickboxer, boxer, and mixed martial artist. 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. As mixed martial artist, he most notably competed in the now defunct Strikeforce in 2009 and 2011.
Michalis "Iron Mike" Zambidis is a professional Greek kickboxer and martial artist. He is an 18-time World Champion, including former World version W5, SUPERKOMBAT and in a series of K-1 Tournaments and Grand Prix Champion. He mostly competed in the K-1 MAX where he scored mostly knockouts.
Ole 'Iron Fist' Laursen is a Filipino-born Danish Welterweight Muay Thai kickboxer and mixed martial artist, he competed in K-1 and in ONE Championship.
Tyrone Clinton Spong is a Surinamese-Dutch professional boxer and mixed martial artist and former kickboxer. As a boxer, he held the WBC and WBO Latino heavyweight titles in 2018. In kickboxing, he is the former WFCA cruiserweight champion, Glory 95kg Slam Champion and It's Showtime 95MAX World champion.
Yodthanong Photirat, known professionally as Yodsanklai Fairtex, is a Thai former professional Muay Thai fighter and kickboxer. He is a former WBC Muay Thai World Super welterweight champion at 154 lbs, and a two-time Lumpinee Stadium champion in the 112 and 147 lb weight classes. He is also the first champion of The Contender Asia. He was nicknamed "The Boxing Computer" by Thai sports newspapers as a testament to his perfect fighting technique.
Murat Direkci is a Belgian-Turkish middleweight kickboxer, fighting out of Universal Gym, Antwerp, Belgium.
John Wayne "The Gunslinger" Parr, also known as JWP, is a retired Australian Muay Thai fighter, kickboxer and boxer, fighting out of Boonchu Gym in Gold Coast, Queensland. He is a former 10-times World Champion and was the runner up on The Contender Asia.
Gevorg "Giorgio" Petrosyan is an Armenian-born Italian kickboxer who competes in the middleweight division. He is nicknamed "The Doctor" and noted for his supreme technical skills, ringsmanship and defensive prowess which has seen him defeat some of the best strikers in the world while taking little-to-no damage. As of September 2022, he is ranked the #5 lightweight and #6 pound-for-pound kickboxer in the world by Combat Press, and is widely regarded as one of the greatest kickboxers of all time. As of October 12, 2023, he is ranked #5 in the ONE Featherweight Kickboxing rankings.
Marco "The Sniper" Piqué is a Surinamese-Dutch welterweight kickboxer, fighting out of Team Snipers in The Hague, Netherlands. He is the current World Full Contact Association Muay Thai middleweight world champion, WMC intercontinental champion, and a two-time K-1 MAX regional tournament finalist.
Dzhabar Askerov is a Russian Welterweight kickboxer fighting out of Melbourne, Australia and representing Russia. He is the World Muay Thai Council's Welterweight European Champion and K-1 MAX Scandinavia 2008 Tournament Finalist.
Gökhan Saki is a Turkish-Dutch kickboxer and mixed martial artist. He is a Dutch, European and World Muay Thai champion, K-1 World GP 2006 in Amsterdam tournament finalist, K-1 World Grand Prix 2008 in Hawaii champion and former Glory Light Heavyweight Champion. Saki also competed in the light heavyweight division of the Ultimate Fighting Championship.
Tosca Petridis is an Australian former kickboxer and boxer. He was born in Melbourne, however is of Greek ethnicity. He lives in Melbourne.
K-1 World MAX 2003 World Tournament Final was a kickboxing event promoted by the K-1 organization. It was the second ever K-1 MAX final for middleweight kickboxers involving eight finalists and two reserve fighters, with all bouts fought under K-1 rules. The tournament fighters had qualified via preliminary tournaments, had been involved in the previous years final, or had been invited due to their achievements in kickboxing and Muay Thai. As well as tournament bouts there was also a super fight, also fought under K-1 rules. In total there were twelve fighters at the event, representing seven countries.
Sitthichai Sitsongpeenong is a Thai Muay Thai kickboxer who is currently signed to ONE Championship. Sitthichai is a former Lumpinee Stadium Welterweight Champion and Glory Lightweight Champion. Combat Press ranks him as the #3 lightweight kickboxer in the world. As of October 27, 2022, he is ranked #3 in the ONE Featherweight Kickboxing rankings, and as of March 6, 2023, he is ranked #2 in the ONE Featherweight Muay Thai rankings.
Robin van Roosmalen is a Dutch retired kickboxer and mixed martial artist. He is the former Glory Featherweight Champion and former Glory Lightweight Champion.
Ali Gunyar is a Turkish-Dutch middleweight Muay Thai kickboxer fighting out of Eindhoven, Netherlands for Team Gunyar, where he is trained by his brother Suleyman Gunyar. Ali is a four-time kickboxing and Muay Thai world champion, who has made appearances for the K-1 MAX, SuperLeague and It's Showtime organizations. As of 2011 Ali is the current W.I.P.U. "King of the Ring" super middleweight world champion in K-1 rules
Chris "The African Warrior" Ngimbi is a Congolese-Dutch Muay Thai kickboxer fighting out of Ngimbi Sports Academy in Pelt, Belgium. He is the two times It's Showtime 70MAX world champion fighting primarily within the It's Showtime and the K-1 Global Holding organizations. He also held the SUPERKOMBAT Middleweight Championship in 2016.
Harut Grigorian is an Armenian-Belgian kickboxer and former Glory Welterweight Champion. He has also competed in the It's Showtime and K-1 promotions.
Enriko Kehl, is a German Muay Thai kickboxer who competes in the Lightweight division of GLORY, he previously competed in the Featherweight division of ONE Championship. He is the 2014 K-1 World Max Championship Tournament Champion. Kehl was voted German Kickboxer of the Year in 2012, 2013 and 2014.
Corentin Jallon is an Algerian-French Kickboxer competing in the heavyweight and cruiserweight division. He is the former World Kickboxing Network (WKN) Cruiserweight World Champion as well as the Muaythai & K-1 FFSCDA France -91kg Champion, King of the Ring -91kg Champion and he has competed in SUPERKOMBAT. In 2013, Jallon became the WKN World Champion after defeating Cristian Bosch in Buenos Aires, Argentina.
