Shoot boxing in the past, including Andy Souwer, Albert Kraus, and Buakaw Por. Pramuk. S-Cup, the Shoot Boxing World Cup, is the 8 man single elimination World Tournament generally held once every 2 years since 1995. Girls S-Cup, is the 8 woman single elimination World Tournament generally held once every year since 2009. Professional shoot boxing matches fall into one of two classes, Expert class and Freshman class. The length of an Expert class match is five rounds of three minutes each, followed by one or two extra rounds of three minutes each in the event of a tie. The interval between
Boxing respond that such a position is misguided opinion, stating that amateur boxing is scored solely according to total connecting blows with no award for "injury". They observe that many skilled professional boxers have had rewarding careers without inflicting injury on opponents by accumulating scoring blows and avoiding punches winning rounds scored 10-9 by the 10-point must system, and they note that there are many other sports where concussions are much more prevalent. In 2007, one study of amateur boxers showed that protective headgear did not prevent brain damage, and another found that amateur boxers faced a high risk of brain