Kacper Knauber1-1-0Fighters
Kacper Knauber1-1-0
Kai Kamaka IIIDa Fighting Hawaiian
Featherweight
Kaine FourieKamil Lamczyk1-1-0Kamil Turalski3-3-0Kamil Tworek6-4-2Kamil Woźny4-2-0Kamilė KuktelionytėKarl ThompsonThe Wasp
CruiserweightKarlos VemolaTerminátor
CatchweightKarol Michalak5-4-0
Katlyn CerminaraBlonde FighterWomen's flyweight
Ketlen SouzaEsquentadinha
Women's strawweightKevin PeaseLightweight9-0-0
Khaos WilliamsThe OxFighterWelterweightKhyzer Hayat
King GreenKingLightweightKonrad Delekta9-1-0
Kristjan Tõniste5-2-0
Krzysztof Głowacki3-2-0, 2 NC
Krzysztof WłodarczykDiabloKy HodgsonSuper welterweight7-1-0
Kyle DaukausMiddleweight
Kyle NelsonThe Monster
Lightweight