BJJ is founded on the concept that a smaller, weaker person can successfully defend themselves against a bigger, stronger, heavier opponent by using technique, leverage, and most notably, taking the fight to the ground, and then applying joint locks and chokeholds to defeat the opponent. BJJ training can be used for sport grappling tournaments and in self-defense situations.
Boxing is a combat sport in which two people, usually wearing protective gloves, throw punches at each other for a predetermined amount of time in a boxing ring. Amateur boxing is both an Olympic and Commonwealth Games sport and is a common fixture in most international games—it also has its own World Championships
Wrestling is a combat sport involving grappling-type techniques such as clinch fighting, throws and takedowns, pins and other grappling holds. A wrestling bout is a physical competition, between two (occasionally more) competitors or sparring partners, who attempt to gain and maintain a superior position. There are a wide range of styles with varying rules with both traditional historic and modern styles. Wrestling techniques have been incorporated into other martial arts as well as military hand-to-hand-combat systems.
Muay Thai, or literally Thai boxing is a combat sport of Thailand that uses stand-up striking along with various clinching techniques. This discipline is known as the "art of eight limbs" as it is characterized by the combined use of fists, elbows, knees, and shins.
Mixed martial arts (MMA) is a full-contact combat sport that allows striking and grappling, both standing and on the ground, using techniques from various combat sports and martial arts.