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.
Badr Hari is a Dutch-born Moroccan kickboxer. He is a former K-1 Heavyweight World Champion (2007–2008), It's Showtime Heavyweight World Champion (2009–2010) and K-1 World Grand Prix 2008 and 2009 finalist. Born and raised in the Netherlands, Hari fights under the Moroccan flag.
Zabit Samedov is an Azerbaijani kickboxer and muay thai fighter. He is the 2012 K-1 World Grand Prix Finalist, when he lost to Badr Hari in the quarter-finals by unanimous decisions. Samedov is also a former It's Showtime 95MAX World Championship challenger.
Alexander "Sasha" Ustinov is a Russian professional boxer, former kickboxer and mixed martial artist. In boxing, he has challenged once for the WBA (Regular) heavyweight title in 2017.
Stefan Leko is a German heavyweight kickboxer. He is the current WKA Super-Heavyweight world champion in kickboxing, and former Muay Thai world 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.
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.
Brecht "The Gentle Giant" Wallis is a Belgian retired kickboxer. He holds notable victories over Jorgen Kruth (twice), Carter Williams, Alexander Ustinov, and Errol Zimmerman.
Errol Zimmerman is a Curaçaoan-Dutch kickboxer, representing the Hemmers Gym in Breda, Netherlands. He is K-1 World Grand Prix 2008 in Amsterdam and SUPERKOMBAT Fight Club tournaments champion. Zimmerman is also former Glory Heavyweight Championship and K-1 Super Heavyweight Championship challenger. In 2011 WIPU voted him the Kickboxer of the Year.
Aleksandr N. Pitchkounov is a former Russian heavyweight kickboxer and kyokushin karateka competing in K-1. He was the runner up at the K-1 World GP 2007 in Hawaii and K-1 World GP 2008 in Taipei tournament.
Kyotaro Fujimoto is a Japanese former professional boxer who competed from 2011 to 2019 and a kickboxer. He began competing again as a professional kickboxer in 2021.
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.
K-1 World Grand Prix 2008 in Seoul Final 16 was a martial arts event held by the K-1 on Saturday September 27, 2008 at the Olympic Gymnastics Arena in Seoul, Korea. It was the Final Elimination tournament for top sixteen fighters. The winners qualified for the K-1 World GP 2008 Final held on December 6, 2008 at Yokohama Arena, Japan.
Pavel Zhuravlev is a Ukrainian kickboxer and boxer. He is the former Interim GLORY Light Heavyweight Champion, the 2012 SUPERKOMBAT World Grand Prix Tournament Champion, the 2013 Legend Fighting Show -93 kg Tournament Champion and the 2012 K-1 World Grand Prix Final Semifinalist.
Vitali Akhramenko is a Belarusian Heavyweight kickboxer and a former World Muay Thai champion. He is trained by Andrei Gridin and is fighting out of Chinuk Gym, Minsk, Belarus. He made his K-1 debut in 2001 at K-1 Czech Grand Prix 2001 in Prague against Takeru.
Ben "The Guvner" Edwards is an Australian heavyweight kickboxer, boxer and mixed martial artist. He is the K-1 World Grand Prix 2010 in Canberra tournament champion. Edwards won the tournament by three 1st-round KO's the fastest win in K-1 history in total time of 3 minutes and 28 seconds breaking the previous record held by Jerome Le Banner of 4 minutes and 4 seconds in K-1 World Grand Prix 2001 in Osaka. Fighting out of Bulldog Gym, Canberra, Australia, he has competed in the K-1, Capital Punishment, Kings of Kombat, SUPERKOMBAT and It's Showtime promotions and is currently signed to GLORY.
Mauricio "Baboo" Da Silva is a Brazilian kyokushin kaikan full contact karate practitioner and former professional kickboxer and mixed martial artist. He is a professional coach and trainer of K-1 and MMA, who has trained a number of world class fighters including Francisco Filho, Glaube Feitosa, Andrews Nakahara, Ewerton Teixeira, Ray Sefo, Aleksandr Pitchkounov, Takumi Sato, Jan Soukup, Kou Tasei, Jan Nortje, Doug Viney, Mighty Mo (kickboxer) and Akebono Taro. From 1998 to 2004 he worked as the trainer and sparring partner for Francisco Filho. He lived in Tokyo, Japan from 2005 to December 2010 and trained fighters from the IKO1 Kyokushin - Team Ichigeki and other fighters from visiting teams at the Ichigeki Plaza. He fought in the K-1 PREMIUM 2003 Dynamite!! and also in the Ichigeki events in Japan.
Igor Jurković is a Croatian heavyweight kickboxer fighting out of Poreč, Croatia. He was 6 times Croatian national champion 2004, 2005, 2006 in Thai boxing, and kickboxing champion 2005 in full contact, 2005 and 2006 in low kick rules, and also was sparring partner of Mirko Cro Cop. He has fought in K-1 and he is under contract with Glory promotion.
Arnold Oborotov is a Lithuanian kickboxer.
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.
Agron Preteni is a Croatian Cruiserweight kickboxer.
