The earliest UFC events had no glove requirement at all — fighters could go bare-knuckle or wear boxing gloves, and most chose to fight with their hands bare. The open-fingered glove familiar today became mandatory only years later, and the numeric weight rules that govern it now came later still, as part of the broader Unified Rules of Mixed Martial Arts.
The bare-knuckle years
UFC 1 took place in 1993 with no unified rulebook and almost no safety equipment by modern standards. Fighters were generally free to choose their own hand gear, and most fought bare-knuckle. The one well-documented exception from that event is boxer Art Jimmerson, who famously wore a single boxing glove on one hand into his fight against Royce Gracie — an oddity that's remembered precisely because it was so far outside what became normal.
That bare-knuckle approach wasn't really a considered safety decision; it was closer to a marketing position. Early UFC events were promoted around the idea of minimal rules and finding out "what works," and bare hands fit that framing even as they created a real injury problem for the fighters themselves.
Why bare knuckles created a problem
Fighting without padding is hard on the hands throwing the punches, not just the faces receiving them — the small bones and joints across the hand and wrist are exposed to the same force a padded glove would otherwise help absorb and spread out. Bare-knuckle strikes also tend to open cuts more easily than a padded glove does, which creates its own problem: cuts and lacerations were becoming one of the more common ways early fights were stopped, for reasons that had nothing to do with which fighter was actually winning.
Those pressures pushed the sport toward some kind of hand protection, but whatever was adopted also had to leave fingers free enough to grip, grapple, and work for submissions — a full boxing glove would have shut down half the sport's techniques.
The move to open-fingered gloves
The UFC made a lightweight, open-fingered glove mandatory starting at UFC 14 in 1997. That design threaded the needle the sport needed: a thin layer of padding across the knuckles to protect the hand and reduce some cuts, while leaving the fingers exposed enough for clinch work, grappling, and submissions. It's recognizably the same basic shape still used today, even though the specific glove has been refined several times since.
The open-fingered design solved one problem and created a smaller one of its own — fingers that are freer to move are also more likely to catch an opponent in the eye by accident, which is part of why eye pokes remain a recurring issue in the sport and why the UFC has periodically revisited the glove's finger design to try to reduce them.
Codifying the rules
The open-fingered glove came before any single, nationally recognized rulebook specified exactly how much it should weigh. That came together gradually as individual state athletic commissions, including New Jersey's and California's, worked through MMA-specific regulations in the early 2000s. Those efforts eventually fed into what's now known as the Unified Rules of Mixed Martial Arts, which the Association of Boxing Commissions formally adopted at its 2009 annual meeting — giving the sport a single reference rulebook that most state and international commissions now use as their baseline, with some local variation.
Those Unified Rules are also where the specific hand-wrap and foul rules most fans know came from. Every illegal move in the UFC and how gloves, wraps, and fighters' hands actually hold up both trace back to that same rulebook.
What the glove actually requires today
Under the Unified Rules, fighters wear a padded, open-fingered glove with a weight floor commonly set around four ounces — the number most fans associate with modern MMA gloves. The exact upper limit varies somewhat by jurisdiction, with different commissions historically allowing gloves a little heavier than that floor, which is one reason you'll occasionally hear slightly different numbers cited depending on where a show is regulated.
The glove itself has also kept evolving well past 1997. More recent redesigns have focused on reducing seams that can cause cuts and making the fingers sit more naturally, specifically to cut down on the accidental eye pokes that the open-fingered design made more likely in the first place. For what actually happens in the cage when one of those pokes occurs regardless, see what happens after an eye poke.
A design still being adjusted
It's worth remembering that none of this happened as one clean decision. The sport moved from no rule at all, to a marketing-driven bare-knuckle period, to a mandated but still-developing glove design, to a codified national rulebook — and the glove itself has kept getting tweaked well after the Unified Rules were in place. Each change responded to a specific, observable problem: hand injuries, facial cuts, and later, eye pokes, rather than a single committee designing the modern glove from scratch.
That history is worth knowing in part because it explains why MMA gloves look so different from boxing gloves despite both sports existing to let two people hit each other safely. Boxing's fully enclosed glove solved for a sport that's purely about striking; MMA's open-fingered design had to solve for grappling, submissions, and striking all at once, and the compromises in its shape reflect that from the very first mandated version in 1997 onward. For more on the sport's broader early years, a short history of the UFC covers the period this glove history sits inside.
The takeaway
The modern MMA glove wasn't handed down with the sport's first event — it arrived years later as a direct response to real injuries, and its specific shape is a compromise between protecting the hands, limiting cuts, and keeping fingers free enough for grappling. The four-ounce figure fans repeat today is a reasonable shorthand for the rule, even though the exact numbers can shift slightly depending on which commission is regulating a given card.