Xtreme Fight Night (XFN) is Oklahoma's premier mixed martial arts and kickboxing promotion.Xtreme Fight Night is America's longest running Mixed Martial Arts promotion founded by former five-time world kickboxing champion Dale "Apollo" Cook in 1977. Based out of Tulsa, Oklahoma, XFN has produced more than 350 events and continues to thrive as one of the best combat sports promotions in the country.XFN shows also feature both world championship kickboxing and world class MMA on the same night. In it's 41 year history, XFN has helped launch the careers of UFC champions Johnny Hendricks and Maurice Smith, and has featured fighters like WWE wrestling star Bobby Lashley, UFC stars Rumble Johnson, Frank Trigg, Guy Mezger, Jake Rosholt and a young amateur kickboxer named Chuck Liddell, who fought for XFN in Las Vegas in the early 90s.