K4 Fighting: Locked In

K4 Fighting: Locked In returns to the iconic Buffalo RiverWorks for an adrenaline-fueled night of premier combat sports on Saturday, June 6, 2026.

Known as “The Gold Standard” of Western New York combat sports, K4 Fighting brings together top-tier local and regional athletes for a high-energy lineup. Fans can expect an action-packed card featuring a mix of Professional and Amateur MMA, Muay Thai, and Kickboxing.

What to Expect

• Diverse Combat Styles: A full card featuring high-stakes bouts in MMA, Muay Thai, Kickboxing, and occasionally high-stakes submission grappling.
• Championship Matchups: K4 events frequently showcase title fights and fierce battles for regional dominance in the cage.
• High-Energy Atmosphere: Experience the intensity of a live fight night in the unique industrial setting of RiverWorks, often featuring over 10 bouts per event.