What is MMA? The complete guide to mixed martial arts

At a glance

  • MMA stands for mixed martial arts.
  • Fights happen standing, in the clinch against the cage and on the ground, with strikes and submissions.
  • The UFC, founded in 1993, is the world’s largest promotion.
  • Anyone can start at any age, with no combat sports background.

This guide covers what you need to understand MMA, follow it or start training. Each section links to a more detailed page.

What is MMA?

Mixed martial arts is a combat sport that allows strikes with the fists, feet, knees and elbows as well as grappling: takedowns, control on the ground and submissions. Two fighters meet in a cage, the Octagon in the UFC, or in a ring depending on the promotion.

What sets MMA apart is the transitions. A fighter has to strike at range, wrestle when pressed against the fence, get back up or attack once the fight hits the mat. A single weak area is enough to lose.

Where MMA comes from

Mixing styles is an old idea. Pankration at the ancient Olympics combined wrestling and striking. In Brazil, vale tudo, “anything goes”, pitted jiu-jitsu practitioners against wrestlers and boxers from the 1920s onward, often driven by the Gracie family.

Rorion Gracie co-founded the Ultimate Fighting Championship, which held its first event in Denver on November 12, 1993. His brother Royce, the lightest man in the bracket, won by submitting all three opponents, proving that a ground specialist could beat a bigger striker once the fight hit the mat.

The early years were rough: few rules, no weight classes, and a reputation that led many U.S. states to ban events. The sport survived by regulating itself, with gloves, rounds, weight classes and eventually the Unified Rules around 2000 and 2001. In 2001 the Fertitta brothers and Dana White bought the UFC for about 2 million dollars. The Ultimate Fighter reality show, launched in 2005, brought the sport to a mainstream audience, while PRIDE drew huge crowds in Japan before being bought out in 2007.

The disciplines behind MMA

DisciplineWhat it brings
WrestlingTakedowns, top control, takedown defense
Brazilian jiu-jitsuSubmissions and ground work
BoxingPunch combinations, footwork, head movement
Muay ThaiKicks, knees, elbows and the clinch
Kickboxing and karateFootwork, distance, fast kicks
Judo and samboThrows and upper-body control

Wrestling has long been the most effective base in the UFC, because it lets a fighter decide where the fight takes place. Khabib Nurmagomedov and Islam Makhachev built championship careers on that principle.

Our Academy breaks down the fundamentals: the double leg takedown, the single leg, the sprawl, the closed guard and the rear naked choke.

Rules and weight classes

Three five-minute rounds, five for a title. You win by KO, TKO, submission or on the scorecards, with each round scored on a 10-point system. Headbutts, eye pokes, groin strikes and blows to the back of the head are illegal. Details are on our MMA rules page.

Fighters are split by weight, from 115 pounds at women’s strawweight to 265 pounds at heavyweight. The full chart is on our MMA weight classes page.

The major promotions

PromotionBased inWhat stands out
UFCUnited StatesThe largest, with most of the world’s best fighters
PFLUnited StatesBought Bellator in 2023
ONE ChampionshipSingaporeIts own rule set, strong in Asia
KSWPolandEurope’s leading promotion
RizinJapanCarries on the PRIDE tradition
LFAUnited StatesThe main feeder league to the UFC
Dana White’s Contender SeriesUnited StatesWeekly tryout show for UFC contracts

Current standings in every division are on our UFC rankings page.

MMA in the United States

Modern MMA started in the United States. UFC 1 took place in Denver on November 12, 1993, as a no-rules tournament between styles. Pressure from state regulators pushed the sport to adopt weight classes, rounds and the rule set that New Jersey wrote down in 2001 and that became the Unified Rules of MMA. The Ultimate Fighter reality show, and the Forrest Griffin vs. Stephan Bonnar finale in April 2005, brought the UFC to a national cable audience.

New York was the last state to legalize professional MMA, in 2016, and UFC 205 at Madison Square Garden followed that November. Since 2026, every UFC event airs on Paramount+, with selected numbered cards on CBS. The path to the UFC usually runs through U.S. regional promotions such as LFA and through Dana White’s Contender Series. The full list of Americans on the roster is on our American UFC fighters page.

Following MMA

The UFC runs an event almost every Saturday. Our pages keep track of it all:

Starting MMA

MMA gyms take beginners of all ages with no background at all. The first months are about stance, movement, falling safely and basic techniques, with no mandatory sparring. Contact comes gradually. Starter gear is short: MMA gloves, a mouthguard, shin guards and a cup. Our buying guides cover MMA gloves, mouthguards and starter kits.

Frequently asked questions

What does MMA stand for?

MMA stands for mixed martial arts, a combat sport that combines striking and grappling.

What is the difference between MMA and the UFC?

MMA is the sport; the UFC is a promotion that stages MMA fights. It is the largest, alongside others such as the PFL, ONE Championship and KSW.

Who is the best MMA fighter in the world?

According to the official UFC pound-for-pound rankings of September 19, 2026, Islam Makhachev, ahead of Alexander Volkanovski and Justin Gaethje.

Can you start MMA with no experience?

Yes. Most people start with no combat sports background, and beginner classes start from zero with no mandatory sparring.

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