Submission wrestling
Submission wrestling, also known as Submission fighting, Submission grappling or Sport grappling, is a form of competition and a general term for martial arts and combat sports that focus on clinch and ground fighting with the aim of obtaining a submission through the use of submission holds. The term "submission wrestling" usually refers only to the form of competition and training that does not use a "gi", or "combat kimono", of the sort often worn with belts that establish rank by color, though some may use the loose trousers of such a uniform, without the jacket. Not using  a gi has a major impact on the sport : there are many choke techniques which make use of the lapels of the gi, thus rendering them un-usable and grappling in general becomes more difficult when the opponent doesn't have a gi to grab hold of. The sport of submission wrestling brings together techniques from Catch wrestling, Folk wrestling, Greco-Roman wrestling, Freestyle wrestling, Jujutsu, Judo, Brazilian jiu-jitsu, Luta Livre and Sambo. Submission fighting as an element of a larger sport setting is very common in mixed martial arts, Brazilian jiu-jitsu, catch wrestling, and others. Submission wrestlers  or "grapplers" usually wear shorts, singlets, wrestling trunks, skin-sticky clothing such as rash guards, and mixed short clothes so they do not rip off in combat. They are also known for using submission techniques normally banned in other arts or competitions such as heel hooks, toe holds, and wrist locks. Generic term. Mixed martial arts schools and fighters may use the term "submission wrestling" to refer to their grappling methods while avoiding association with any one art. The label is sometimes also used to describe the tactic in mixed martial arts competition of relying primarily upon submission wrestling skills  to defeat an opponent. Hybrid Styles. Combat Submission Wrestling. Combat Submission Wrestling (CSW) is a modern form of submission wrestling (and MMA system), without the "gi", developed by Erik Paulson, former Shooto light heavyweight champion. It encompasses more areas, focusing on clinching, submissions, takedowns, grappling and striking. It's a style that borrows elements and techniques from catch wrestling, freestyle wrestling, Greco-Roman wrestling, shoot wrestling, judo and sambo on the grappling aspect. It also blends techniques of striking taken from Boxing, Kickboxing, Lethwei and Savate. Some notorious fighters that have come out of CSW are Sean Sherk, Josh Barnett  and Ken Shamrock. Submission Arts Wrestling. Submission Arts Wrestling (SAW) is a Japanese version of Catch Wrestling borrowing principles from Judo and Sambo. Originally created by founder and former Sambo World Champion Hidetaka Aso, student of Karl Gotch. SAW constitues a no-gi grappling system that focuses on forcing an opponent to submit by employing chokes and joint locks. Its practiced on a wrestling mat and itrelies on technical principles, live sparring sessions and specific conditioning. It is now practiced in Japan - Aso Sensei, Australia - Ito Sensei, Canada - Martelle Sensei and Puerto Rico - Ramos Sensei Hayastan Freestyle Wrestling. Hayastan Grappling  System or Hayastan freestyle wrestling, is a submission grappling style developed by multiple grappling black belts Gokor Chivichyan and Gene LeBell that  blends elements of judo, sambo, catch wrestling, Brazilian jiu-jitsu, Greco-Roman and freestyle wrestling. This system includes all forms of submissions, including leg locks, footlocks, kneebars, heel hooks, shoulder locks, wrist locks, neck cranks, body cranks, chokes and others. Guerilla Jiu-Jitsu. Guerrilla Jiu-Jitsu is a submission grappling hybrid invented by american BJJ and Judo black belt Dave Camarillo in 2006. Camarillo comes from a family of Judokas and he was fully emerged in the martial  art after training in Japan. After and injury during stand up, he started training in Brazilian Jiu-Jitsu under Ralph Gracie. He became a black belt after 6 years he has been teaching his style ever since. Guerilla Jiu-Jitsu focuses mainly on grappling and it's a mixture of Judo and Brazilian Jiu-Jitsu. However, it's also considered quite aggressive, with its pratictioner focusing heavily on submissions as much as positions.