Dewey Cooper was born in Los Angeles, CA on November 10, 1974. He started training in the Martial Arts in 1985; fighting all over America in Amateur Kickboxing Shows and Karate Tournaments. Winning over twenty karate Tournament Championships and Two World Amateur Titles in Muay Thai Kickboxing. He compiled a record of 129 wins, 15 losses, 3 draws.
He turned professional in 1996, having dreams of someday becoming a K-1 fighter. After winning two World Titles WKC & WKF in 2000; he became a popular American fighter with worldwide recognition. In 2002; he was finally selected to fight in the prestigious K-1 Tournament. Where he defeated 4-Time World Champion Jean Claude Leyer. In 2004 Cooper reached the final match of the grueling K-1 tournament by defeating two of the world's top kickboxers Nobu Hayaoshi of Japan and Mighty Mo of Samoa. His current record in Kickboxing is 49 wins (28 by knockout), 14 losses, 2 draws. His professional Boxing record is 19 wins (11 by knockout), 3 losses, 3 draws. His professional MMA record is 3 wins, 1 loss.
In 2008; Dewey Cooper was inducted in the Masters Of Martial Arts Hall Of Fame for his outstanding contributions in Martial Arts, as a Multi-Time World Champion as a fighter and as a Boxing Trainer of 8-Time Boxing World Champion Jessica Ragin Rakoczy! Cooper was Head Coach of WBA Light Heavyweight World Champion Beibut Shumenov, WBA Feda-Latin Welterweight Champion Ravshan Hudaynazarov, WBA Jr Welterweight Champion Sanya Zhuravskiy, and WBA Intercontinental Light Heavyweight Champion Gayrat Ahmendov. Currently, Cooper is the Coach of popular UFC Fighters such Francis "Predator" Ngannou, Kevin "Motown Phenom" Lee, Makhmud Muradov, Ion "Hulk" Cutelaba, and Dalcha "Rhino" Champion. Cooper is Head Coach of Brave Combat Federation Featherweight Champion and now PFL Contender Bubba Jenkins!
He also trains Bellator MMA Fighters Noad Lahat and "Killa" Keith Lee.
Cooper is currently the Head Boxing Coach of French Heavyweight Boxing Champion Carlos Takam, undefeated Featherweight Pro Boxer Rocky Marzan, and WFB Women's Boxing Champion Kylie Fulmer. Cooper was formerly the Head Coach of TMT Mayweather Promotions Boxers Charvis Holifield and Sanjar Rakhmanov.