Brazilian Jiu-Jitsu is a martial art and combat sport that focuses on grappling and especially ground fighting. It is a derivative of early 20th century Kodokan Judo,which was itself then a recently-developed system (founded in 1882), based on multiple schools (or Ryu) of Japanese jujutsu.

Like judo, it promotes the principle that smaller, weaker person can successfully defend themselves against a bigger, stronger assailant using leverage and proper technique; applying joint-locks and chokeholds to defeat them. BJJ can be trained for self defense, sport grappling tournaments (gi and no-gi) and mixed martial arts (MMA) competition. Sparring (commonly referred to as 'rolling') and live drilling play a major role in training, and a premium is placed on performance, especially in competition.

Muay Thai is a form of hard martial art practiced in large parts of the world, including Thailand and other Southeast Asian countries. Muay Thai has a long history in Thailand and is the country's national sport.

Muay Thai is referred to as "The Science of Eight Limbs", as the hands, shins, elbows, and knees are all used extensively in this art. A practitioner of Muay Thai thus has the ability to execute strikes using eight "points of contact," as opposed to "two points" in Western boxing and "four points" used in the primarily sport-oriented forms of martial arts.

Colloquially referred to simply as Greco, this style of wrestling forbids attacks below the waist. As a result, throws are encouraged as the Greco-Roman wrestler cannot avoid being thrown by simply hooking or grabbing his opponent's leg. Otherwise, the sport is similar to freestyle.Arm drags, bearhugs, and headlocks found in freestyle have greater prominence in Greco-Roman. Throws especially known as a suplex are used, in which the offensive wrestler lifts his opponent in a high arch while falling backward on his own neck to a bridge in order to bring his opponent's shoulders down to the mat

52 Hand Blocks or Jail House Rock is a name which is used to describe a collection of different fighting styles that have been practiced and/or developed within US penal institutions.  This form of fighting teaches elusive footwork and blocking punches and kicks with the forearms and elbows.  Primarily a defensive artform 52 blocks creates devestating counter attacks using elbows and punches.  As such, the 52 Hand Blocks and their variants may be compared to the martial arts of capoeira and savate, both of which were originally semi-codified fighting methods associated with urban criminal subcultures, which underwent a gradual process of codification before becoming established as martial arts accessible by the cultural mainstream. 

American Kenpo or Kenpo Karate is a system of martial arts created by Ed Parker, characterized by the use of quick moves in rapid-fire succession intended to overwhelm an opponent. It is largely marketed as a self-defense system, and is derived from traditional Southern Chinese kung fu and other martial arts found in the cultural melting pot of Hawaii. Within American Kenpo there is a basic belt system consisting of White, Yellow, Orange, Purple, Blue, Green, Third Brown, Second Brown, First Brown, and First through Tenth Black.