The UFC started in 1993 as an eight-man tournament with almost no rules, built to answer a marketing question: which fighting style wins when styles are mixed? It took most of a decade to become a regulated sport with weight classes and a real rulebook, and another decade after that to become the global, mainstream business it is today. The short version: near-lawless spectacle, then regulation forced by backlash, then a business turnaround, then global growth.
The first UFC had almost no rules
UFC 1 took place on November 12, 1993, at the McNichols Sports Arena in Denver, Colorado. It was an eight-man single-elimination tournament with no weight classes, no rounds, no time limits, and no judges. Fights ended only by knockout, submission, or a fighter's corner throwing in the towel. The event was marketed as having no rules at all, which was an exaggeration — biting, eye gouging, and groin strikes were technically banned — but the restriction list was that short, and none of the fighters wore gloves.
The winner was Royce Gracie, a Brazilian jiu-jitsu practitioner who gave up a size advantage in every fight and won anyway by taking opponents to the ground and forcing submissions. That result is a big part of why the event mattered: it introduced grappling to a wide audience that assumed size and striking power would always win, and it's the reason jiu-jitsu became a foundational skill in the sport rather than a novelty.
Backlash forced the sport to regulate itself
The early UFC drew fast, serious opposition. Then-Senator John McCain saw tape of an event, called it "human cockfighting," and campaigned to have it banned — writing to state governors and pushing cable and pay-per-view providers to drop it. The campaign worked in the short term: by the late 1990s, the UFC had been pulled off pay-per-view in most of the US and was locked out of holding events in many states.
That pressure pushed the promotion toward the regulation it had avoided at first. The UFC added its first weight classes at UFC 12 in 1997, splitting fighters into heavyweight and lightweight divisions instead of letting any size matchup happen. More divisions followed over the next several years. Then, in April 2001, the New Jersey State Athletic Control Board hosted a summit that produced the Unified Rules of Mixed Martial Arts — a standardized rulebook covering weight classes, round structure, judging criteria, and a specific list of banned techniques. States adopted it gradually rather than all at once, but it became the template every athletic commission in North America eventually used, and it's still the basis for the rules the UFC fights under today.
A new ownership group, and a show that saved the company
By 2001, the UFC's original ownership group was losing money and looking to sell. Casino executives Frank and Lorenzo Fertitta bought the promotion that year for a reported $2 million, forming a new company called Zuffa to run it, and brought in Dana White — a friend of Lorenzo's from high school — as president.
Regulation alone didn't fix the UFC's business problem: even under the new rules, the promotion still wasn't profitable years later. The turnaround came from television, not the cage. In 2005, Zuffa launched a reality competition called The Ultimate Fighter on Spike TV, following fighters competing for a contract while living together. The season finale — a back-and-forth fight between Forrest Griffin and Stephan Bonnar — is widely credited as the moment that made the UFC's audience big enough to sustain the business, and it led to a wave of new cable deals and a much higher public profile heading into the following years.
Women's divisions and a much bigger stage
For its first two decades, the UFC was men-only. That changed in February 2013, when Ronda Rousey fought Liz Carmouche for the inaugural women's bantamweight title — the first women's fight in UFC history. Rousey won by submission and became one of the promotion's biggest stars, and additional women's divisions followed in the years after.
The business kept growing alongside the sport. In 2016, a group led by the talent agency WME-IMG (later renamed Endeavor) bought the UFC for a reported $4 billion, at the time one of the largest sports acquisitions ever completed. Ownership changes aside, the UFC spent the 2010s and 2020s expanding into new countries, building a roster of fighters from dozens of nations, and shifting from a company known mainly to combat-sports fans into one of the most-watched sports promotions in the world.
Where the UFC stands today
The regulation that once threatened to shut the UFC down is now the thing that gives it legitimacy: every UFC bout is scored under the Unified Rules of MMA, contested inside a defined weight class, and overseen by an athletic commission, with a specific, enforced list of banned fouls that has nothing in common with UFC 1's three-item list. How fans actually watch has also kept changing — in 2026, every UFC event moved onto a single streaming platform, ending the old pay-per-view model entirely.
The throughline across all of it is the same: what started as an unregulated spectacle built to settle a bar argument about fighting styles became, through repeated pressure to professionalize, a sport with judges, weight limits, medical oversight, and a rulebook adopted across an entire industry. The format changed enormously; the basic premise — two fighters, one cage, decided fairly — never did.