The Map of 20-Plus MMA Titles: In Bangkok, I Learned That 'Middleweight' Doesn't Mean the Same Thing Everywhere

At an open workout in Bangkok, I stood beside the digital scale as a fighter weighing 205 pounds stepped on. In the eyes of UFC fans, that number belongs to light heavyweight. But in ONE Championship, he is classified as a middleweight. In five years of covering combat sports from Bangkok to Tokyo, I had never encountered a small detail that says so much about how the MMA industry divides power.

Viewers record the score; I record the heartbeat of the entire arena. This time, that heartbeat follows a map of more than twenty championships spread across six major promotions: UFC, PFL, Bellator, ONE Championship, Rizin, and Invicta FC. This is a rare moment when, if we take the time to trace every line, we can see the whole global martial arts ecosystem instead of a single champion's face.

The interesting part is not who holds which belt, but the vacancies, the misalignments, and the strategies reshaping the entire field.

When I began compiling this list, the first thing that struck me was the number of vacant titles. The UFC has left its men's heavyweight division open. Rizin has no light heavyweight champion. Invicta FC is missing four of five women's titles: featherweight, flyweight, strawweight, and women's flyweight. In Bangkok, we in the media often call these gaps seats that no one has dared to sit in yet.

But vacancies are only half the story. The other half lies in the names currently holding belts. Islam Makhachev at UFC lightweight. Usman Nurmagomedov at PFL lightweight. Both trace back to the Dagestani wrestling lineage, raised within the AKA and Eagle MMA ecosystem. Alexander Volkanovski of the UFC brings a kickboxing base, while Carlos Ulberg, the Nigerian-Australian also in the UFC, represents the kickboxing-to-MMA pipeline. Cris Cyborg, PFL women's featherweight champion, embodies the Brazilian school of raw punching power. Petr Yan, former UFC bantamweight champion, a Siberian-born Russian, represents the striking-plus-BJJ hybrid. Xiong Jing Nan, ONE's women's strawweight champion, is a familiar face of international martial arts on the Asian circuit.

That diversity of origin reflects how promotions scout talent by geography. The UFC draws from the Americas and Europe. ONE roots itself in Asia-Pacific. PFL gathers Bellator's remnants. Rizin keeps its Japanese home. Invicta specializes in women. Each promotion is its own world, with its own weight-class system, rule set, and scoring method.

From that map, three structural patterns emerge. I will move from the clearest to the most contentious.

First, PFL is turning itself into the collector of the second tier. Looking at PFL's current champion list: Vadim Nemkov at heavyweight, Corey Anderson at light heavyweight, Costello van Steenis at middleweight, Thad Jean at welterweight, Usman Nurmagomedov at lightweight, and Cris Cyborg at women's featherweight. Nearly all of them once belonged to Bellator or left the UFC. This is a strategy of acquiring stars, not developing them from scratch. After absorbing Bellator, PFL inherited its rival's championship roster and turned it into a product catalog.

That is not a bad thing. It is simply a different way of playing. But it raises a question PFL has yet to answer: can a roster of champions assembled from many sources generate enough drawing power to compete with the UFC in ticket revenue and subscriptions?

Second, ONE Championship operates on a weight ladder shifted a full tier above the rest. ONE's light heavyweight limit is 225 pounds, while the UFC and PFL use the 205 standard. ONE's middleweight is 205, against the UFC's 185. Going further down, ONE's welterweight is 185 versus the UFC's 170, ONE's lightweight 170 versus 155, ONE's featherweight 155 versus 145, and ONE's bantamweight 145 versus 135. In other words, a ONE middleweight champion moving to the UFC would have to fight at light heavyweight. A ONE featherweight champion is equivalent to a UFC lightweight.

This is a deliberate choice, not a mistake. It aligns with the body-frame structure of part of the Asia-Pacific roster and reduces weight-cut stress for athletes. From a health standpoint, this is a fighter-protective design more than a system flaw. From a comparison standpoint, though, it creates a trap.

Third, the phenomenon of a fighter holding two belts appears far more often in ONE. Anatoly Malykhin is simultaneously ONE's light heavyweight and middleweight champion. Christian Lee holds both lightweight and welterweight. The UFC rarely permits this. ONE turns it into a marketing instrument: a champion-versus-champion bout is the best ticket-selling format a promotion can offer, and ONE can stage more of them each year than the UFC because of its dual-belt policy.

This is a business high point for ONE, and simultaneously a blind spot athletically. A double champion often has to split training time between two weight classes, and each title defense at a different weight brings a different cutting cycle. Watching from Bangkok, I have seen ONE fighters constantly asked when they will drop one of their two belts - a sign of both physical and psychological pressure.

Now comes the part I want to linger on a little longer, because it directly concerns how we in Vietnam consume MMA news.

When a list like this appears, the natural reaction is to ask: if Makhachev fought Nurmagomedov, who would win? Or could PFL's Cyborg handle the UFC champion? Those questions are compelling, but they cannot be answered with the data this list provides. This list names who holds which belt; it says nothing about style, head-to-head records, knockout rates, or durability.

In five years on the job, I have learned one principle: never predict a fight that has not been confirmed, especially a cross-promotion fight. Even if two champions share the same weight, they still compete under two different rule sets. ONE allows knees to a grounded opponent's head and has different grappling rules; the UFC forbids it. Rizin operates under Japanese MMA rules with a distinct scoring method. A cross-promotion fight is not just two fighters - it is two legal systems colliding.

Worse, the weight-class misalignment creates a cognitive trap. Fans read 'ONE middleweight champion' and 'UFC middleweight champion' and assume they are physically equivalent. In reality, one weighs 205 pounds, the other 185. Comparing two titles with the same name across two different promotions is a category error, not an opinion.

In Bangkok, I once witnessed a fierce argument between two journalists. One insisted ONE fighters were stronger than UFC fighters at the same weight; the other pushed back hard. Both were right and both were wrong, because they were talking about two different things under the same name. Viewers record the score; I record the heartbeat of the arena - and in this case, the arena's heartbeat is racing faster than the actual analysis.

So where is the real lesson? Not in avoiding the debate, but in equipping ourselves with the right tools to have it. When someone asks me who the number one MMA fighter in the world is, I always answer with a question back: under which rules, at which weight, and at which moment?

The most striking thing on this map is not the names holding belts, but the silence of the empty ones. The UFC has left men's heavyweight vacant. Rizin has no light heavyweight champion. Invicta is empty across almost every women's division. These gaps signal transition, injury, or simply slower matchmaking. For a small promotion like Invicta, four of five women's titles vacant is a commercial as well as competitive problem at the same time.

As a chronicler, I will watch three flashpoints in the coming months. Whether the UFC fills heavyweight with an interim title bout, or waits for a true unification. Whether PFL holds onto its second-tier champion roster amid financial pressure and the UFC's pull. And whether ONE continues to allow its stars to hold two belts as a business weapon, or tightens the policy out of physical-load concerns.

Those three signals, in due course, will tell us whether the MMA ecosystem is consolidating or cracking. And as always, I will be there, quietly recording the heartbeat of the arena, waiting for the story to ripen before telling it.