The Duo System is a discipline in which a pair of jutsukas from the same team show possible self-defense techniques against a series of 12 attacks, randomly called by the mat referee to cover the following scenarios: grip attack (or strangulation), embrace attack (or necklock), hit attack (punch or kick) and armed attack (stick or knife). The Duo System has three competition categories: male, female or mixed, and the athletes are judged for their speed, accuracy, control and realism. It is arguably the most spectacular form of ju-jitsu competition and it requires great technical preparation, synchronism and elevated athletic qualities.
The Fighting System is articulated in a series of two-round, one-on-one combats between athletes from opposing teams. The system is divided in 10 categories according to weight and sex (male categories: -62 kg, -69 kg, -77 kg, -85 kg, -94 kg, 94+ kg; female categories -55 kg, -62 kg, -70 kg, 70+ kg).
The actual combat is divided in three parts: Part I sees the jutsukas involved in distance combat and controlled attacks with arms and legs. Once a grab has been made, the fight enters Part II and hits are no longer allowed. The jutsukas try to bring one another down with various throwing techniques. Points are given according to how clean and effective the actions are judged. Once down on the tatami mats, the match enters its Part III. Here points are given for immobilization techniques, controlled strangulations or levers on body joints that bring the opponent to yield. The winner is the jutsuka who has accumulated most points during the fight. This type of competition requires timing, agility, strength and endurance.
Also See: http://www.jjif.org/website/?cat=103 and http://www.jjifweb.com/html/sub_comp.html
Grappling refers to the gripping, handling, and controlling of an opponent without the use of striking, typically through the application of various grappling holds, choke holds, and counters to various hold attempts. Grappling forms an important part of both ground fighting and standing clinch fighting. Sports that use grappling include Judo, Mixed martial arts and Wrestling. FILA uses the term grappling interchangeably with the sport of submission wrestling
Mixed martial arts (MMA) is a full contact combat sport that allows a wide variety of fighting techniques, from a mixture of martial arts traditions and non-traditions, to be used in competitions. The rules allow the use of striking and grappling techniques, both while standing and on the ground. Such competitions allow martial artist of different backgrounds to compete. The term may also be used however less correctly to describe hybrid martial arts styles.
Modern mixed martial arts competition emerged in American popular culture in 1993 with the founding of the Ultimate Fighting Championship. Initially based on finding the most effective martial arts for real unarmed combat situations, competitors of various arts were pitted against one another with minimal rules or concern for safety. In the following decade, MMA promoters adopted many additional rules aimed at increasing safety for competitors and to promote mainstream acceptance of the sport. Following these changes, the sport has seen increased popularity with pay per view reach rivaling boxing and professional wrestling.






