Former UFC Heavyweight Chris Barnett Set for Karate Combat Debut Against Jonathan “Big Baby” Miller at KC58
Karate Combat has confirmed that former UFC fighter Chris Barnett will make his promotional debut on December 5, facing Jonathan “Big Baby” Miller at KC58 in Miami. The event will be staged in The Pit, Karate Combat’s signature arena.
“Beastboy” Chris Barnett
Barnett’s arrival in Karate Combat marks a transition from a career spanning multiple organizations. He became a fan-favorite in the UFC’s heavyweight division. As he would often do, he would perform front flips if he won the fight, and he was a 300-pound man doing spin attacks. Barnett was officially removed from the UFC roster on November 10, 2025, after a final appearance against Hamdy Abdelwahab a month earlier. His professional MMA record stands at 21 wins and 9 losses, with a finish rate over 80%, most of them by knockout.
Barnett’s martial arts foundation is rooted in Taekwondo and wrestling, shaped by family ties to the sport. Both parents hold black belts, and Barnett has taught and trained out of the family’s Taekwondo school in Georgia. His early years featured regional success, eventually leading to stints in international promotions including Rizin and Road FC before his UFC tenure.
Despite physical adversity and moving between organizations, Barnett’s fighting style is notable for spinning kicks and flash finishes, with a highlight-reel technical knockout over Gian Villante at UFC 268 earning him a Performance of the Night award. His blend of athletic movement and combat sports background aligns well with the full-contact karate format of Karate Combat.
His KC58 opponent, Jonathan “Big Baby” Miller, steps into The Pit with his own presence in heavyweight combat sports, though less information is currently available about his recent fighting record or style. Karate Combat has positioned Miller as a suitable debut challenger, aiming to deliver a stylistic clash for fans.
The event takes place in Miami, KC58 features a lineup of striking specialists from diverse backgrounds, which has contributed to the promotion’s rise among full-contact martial arts leagues.
Barnett’s move to Karate Combat has generated significant social media engagement. Followers have reacted with excitement, emphasizing his reputation for entertaining fights and personality. Comments note that his latter UFC bouts were less successful, yet there’s curiosity about how his skills will translate to the karate-centric format.
The December 5 headliner serves as a focal point for Karate Combat’s ongoing expansion, offering a stage for Barnett’s debut and a platform for striking-based martial arts in Miami. The promotion is expected to capitalize on Barnett’s established fan base and visibility, potentially drawing both MMA and karate audiences.
