Custom UFC Highlights Featuring Music By Eminem DMX & Obie Trice A great compilation Highlights Mixed Martial Arts A knockout (also referred to as a KO) is a winning criterion in several full-contact combat sports, such as boxing, kickboxing, Muay Thai, mixed martial arts and others sports involving striking. A knockout is usually awarded when one participant is unable to rise from the canvas within a specified period of time, typically because of fatigue, injury (serious or temporarily incapacitating, eg a bleeding cut above the eye can blind a fighter), loss of balance, or unconsciousness; that is, the person may literally be knocked out. A technical knockout (also referred to as a TKO) is often declared when the referee or other judges (such as official ring physician, the fighter, or the fighter's cornermen) decide that a fighter cannot continue the match, even though he did not fail the count, or, in many regions, a fighter has been knocked down three times in one round.[1] British records refer to tkos as either "retired", if the fighter refuses to continue, or "RSF", for Referee Stopped Fight. In amateur boxing, a knockout is scored as "RSC," for Referee Stopped Contest. A technical knockout ("Outclassed") can also be declared if a fighter is ahead by 15 points in a bout.
