Catalogue
Weight classes exist so that a fight is decided by skill rather than by mass. Mixed martial arts settled on the divisions below through the Unified Rules of MMA, and they are now close to universal: a bout contracted at 155 pounds means the same thing in Las Vegas, Abu Dhabi and São Paulo. A division is a band with an upper limit, and a fighter belongs to the one whose limit they make on the scale — not the one they walk around at.
Each division is defined by its ceiling, from strawweight at 115 pounds up through flyweight, bantamweight, featherweight, lightweight, welterweight, middleweight and light heavyweight to heavyweight, which caps at 265. Non-title bouts carry a one-pound allowance; when a belt is on the line there is none at all. A bout agreed at a weight that sits between two divisions is a catchweight, and it counts for the records of both fighters without belonging to either division's ladder.
The gaps between limits are not even, and that matters more than it looks. The lighter bands are separated by ten pounds, so a fighter stepping up meets opponents of a similar frame. From light heavyweight to heavyweight the band opens to sixty pounds, which is why the heavy end of the sport looks so unlike the rest of it.
A weight class is a style as much as a number. The lighter divisions reward pace, volume and the ability to keep working late in a fight; the heavier ones reward power, because a single clean exchange can end the night. Grappling travels upward better than striking does, and cardio becomes the scarcer resource on the way down. It is why a fighter who dominates at one weight can struggle a single step above it against opponents who are no more skilled, just heavier.
Weight cutting is the discipline behind all of it. Most fighters compete below the weight they live at, and how well a body rehydrates between the scale and the cage is often as decisive as anything that happened in camp. That is also why moving between divisions is a real career decision and not a formality.
Every division page lists the fighters recorded at that weight, with their professional records, the gyms they train out of, their nationalities and the measurements that make up their tale of the tape. Each name links through to a full profile. Records shown are professional records across all promotions, not a single organisation's tally.
12 pages, covering 1,060 profiles