Vietnamese Martial Arts and the Data Gap: The Truest Pulse Still Beats on the Training Floor

It was a late-November Saturday evening at a small arena in Nha Trang. The stands held only about two hundred people; the lights were amber, and the smell of liniment still hung in the air. I sat in the third row, notebook open, a pencil pinched between index and middle finger — a habit that has followed me for forty-six years in this trade. On the floor, a young fighter from Khanh Hoa walked into the third round with puffy eyes, yet his feet kept bouncing steadily, rhythmically, as if counting a private drumbeat. Beside me, a middle-aged man kept opening his phone, looking up the record of the young man's opponent. He tapped and tapped, shook his head, then turned to me: "Sir, how many fights has this guy had, how many wins, how many losses?"

I could not answer.

Not because I did not know. But because that information did not exist anywhere searchable — not on the organizers' page, not on any sports-data platform, not on the fighter's own social media. We sat fifteen meters from the ring, but we were in fact a whole world away from the information. And that very moment of silence — when a fan wants to believe but has nothing to believe in — is the starting point of this piece.

Across more than four decades of reporting on martial arts, from training rooms in Osaka in my youth to the rings of central Vietnam today, I have come to realize one thing: the biggest problem of Vietnamese martial arts has never been a lack of good fighters, a lack of spectators, or a lack of passion. The problem is that we are trying to analyze a sport that does not yet have the data foundation to be analyzed. And when data does not exist, people tend to replace it with something more dangerous: emotion, rumor, and numbers inflated to serve publicity.

Context: a martial-arts scene growing up in silence

To understand why the data gap matters, one must understand where Vietnamese martial arts stands. Over the past decade, the martial-arts training movement in Vietnam has exploded in ways that are hard to quantify. Gyms with martial-arts classes, amateur MMA centers, boxing and kickboxing clubs have sprung up in almost every major city. Amateur events, youth events, provincial-level tournaments run all year round. Somebody steps into a ring every night.

But when I asked the organizers of an amateur event in central Vietnam for detailed fight results, the answer I got was: "Leave your email, and when we have the summary sheet we'll send it." Weeks later, that email still had not arrived. Not because anyone was lazy. But because no one had been assigned to keep records. The timekeeper used a phone, the cameraman used a personal camera, and the final results were announced in a Facebook post that could be deleted at any moment.

This is the reality any sports journalist covering Vietnamese martial arts knows: we have plenty of fights, but almost no fight records. Vietnamese football has built a V.League data system with player statistics, transfer figures, and match-by-match details. Martial arts has not. Here, a fighter can have twenty fights and no one — including himself — can recall the sequence of results in chronological order.

And when the data foundation is empty, every analysis built on top of it becomes a house built on sand. Fans who want to compare two fighters before a bout have nothing to compare. Journalists who want to write a preview with depth must hunt down scattered fragments themselves. And entertainment media needs only one sensational story to fill the gap — whether or not that story is true.

Blind spot one: three martial worlds merged into one

This is the most common error I see among both fans and part of the Vietnamese media: treating every martial art as if it operated on the same logic. It does not. At least three entirely different worlds coexist under the single name "martial arts," and each demands a radically different reading.

The first world is modern professional combat sports — MMA, boxing, kickboxing, Muay Thai, grappling. Here the logic revolves around wins and losses, finish rates before the time limit, strikes landed per minute, durability, and the quality of the opponent chain already faced. You judge an MMA fighter by whom he beat, how he beat them, and whom he lost to. The most important number is not the number of wins, but the quality of those who stood across from him.

The second world is forms performance and traditional systems — where routines, weapons forms, and movements are scored on difficulty and performance quality. Here, the very concept of "finishing a fight" does not exist. You cannot say a forms athlete has an "effective strike rate" in the MMA sense, because there is no one to strike. Every metric from the fighting world applied here is meaningless.

The third world is hybrid combat disciplines such as sanda — permitting punches, kicks, and throws — sitting between traditional wushu and professional kickboxing, with its own distinct ruleset. Viewers used to MMA may assume sanda resembles kickboxing, but the scoring and methods of deciding victory differ considerably.

This ambiguity has practical consequences. When an article uses combat-record metrics to describe a master who teaches forms, readers misunderstand the person. When a spectator uses MMA standards to judge a traditional martial-arts demonstration, they find it "lacking in combat" — when that standard was never intended for that art form.

Applying the wrong analytical lens to a martial art of the wrong type always produces wrong conclusions — and a wrong conclusion is worse than none, because it creates a feeling of understanding where there is in fact misconception. This is what I must remind myself every time I sit down to write.

Blind spot two: the number on the scale and the lives behind it

If there is one crossing point that every world of combat sports touches, it is the scale. Weight-cutting before a fight is an inseparable part of boxing, MMA, kickboxing, and Muay Thai. And this is also the area where the data gap is most dangerous.

I have seen enough to know that information about a fighter's weight-cut process is usually kept secret until something happens. For publicity reasons, a club publishes only what is beneficial: the weight on the scale, the lean look at weigh-in. They never publish a fighter's actual weight when he walks out of the liniment room on an ordinary day, when he has not been fasting. They do not publish the number of times he nearly fainted in the sauna. They do not publish how many days he needed to recover after making weight.

This lack of transparency is not a minor detail. It is the variable with the highest predictive power for acute health risk across all of combat sports. Acute dehydration kidney injury, rhabdomyolysis, collapse right at the weigh-in — all stem from an information gap maintained deliberately.

In Vietnam, this problem is even more severe because even pre-event medical checks are inconsistent across organizers. Major events have their own doctors; amateur events may require only a voluntary consent form. No one keeps a fighter's weight-cut history across events. There is no long-term health record. Every time a fighter steps into the ring, he starts again from zero in the eyes of the medical system.

I once sat down with a young fighter in central Vietnam who had just recovered from a knockout loss. I asked him when he had last had his brain checked. He smiled: "Never, sir." Twenty-two years old, six years of training, more than fifteen fights, and not one brain scan. That is not an isolated story. That is the norm.

Blind spot three: the record and the art of inflating numbers

When public data does not exist, numbers become the most easily distorted thing. In international combat sports, "padding the record" — inflating a record by fighting weak opponents — is a systemic game. A fighter with twenty fights and twenty wins sounds impressive. But if fifteen of them were newcomers, or opponents pushed in at the last minute to save the card, then that twenty-fight unbeaten streak says nothing about true class.

The correct standard is not the number of wins but the quality of the views those opponents have conquered. A fighter who has beaten someone who once fought evenly with a regional champion is worth more than three wins over opponents who have never stepped into a ring.

In Vietnam, we have a different version of this problem, but worse in one respect: there is no database to catch the inflation. When an article praises an "unbeaten fighter" without naming opponents, there is no way for the reader to check. There is no Sherdog, no BoxRec, no Tapology for Vietnamese martial arts. All that exists is the number supplied by the promoter himself.

This creates a toxic psychological consequence: fans gradually lose the ability to trust any number. And when people do not trust the true number, they will trust the number that sounds better. That is the mechanism promoters understand better than any journalist.

I once had a fighter's representative gently remind me: "Don't write that he lost three fights; write that he has seven wins — it sounds more positive." I refused. But I understand why the request exists. In a market with no data standard, distorting numbers is not lying in the way people usually imagine — it is simply a competitive tactic everyone uses, because no one checks.

Blind spot four: organizational structure and the battles behind the scenes

If you want to know why Vietnamese martial arts does not yet have a complete data system, look at organizational structure. Unlike sports with strong federations and centralized professional-league systems, Vietnamese martial arts operates on a dispersed model: many federations, many associations, many private organizers, many independent amateur events, and very little data coordination among them.

Organizational fragmentation always comes with data fragmentation — and data fragmentation in turn reinforces the power of organizations that do not want to be checked. That is a hard loop to break.

Internationally, each region has its own hierarchy. MMA has top-tier and regional organizations. Boxing has four major championship-belt systems, and this fragmentation itself is the source of endless disputes over who is truly champion. Kickboxing has promotions such as Glory and K-1. Muay Thai has the stadium system and international tournaments. Sanda has national-games systems and its own world championships.

In Vietnam, most of these structures are still in their infancy. That is not bad — it is the nature of a sport still growing up. But it means anyone who wants to analyze Vietnamese martial arts seriously must accept one fact: most of the real story lies behind the scenes, not in the published results table.

The story of exclusive contracts, of the allocation of title opportunities, of an organization's motive for staging a filler fight to keep a sponsor, of negotiations no one wants to publicize — all of it happens, but all of it lies outside the spectator's view. And because there is no data system to record it, those stories exist only in the memory of a few insiders.

Blind spot five: when the heat map becomes the new fortune-telling

I want to devote a special section to a trend spreading fast in sports analysis, martial arts included: the overuse of data-visualization charts to create a scientific feel.

Heat maps and metric charts are becoming a new kind of fortune-telling — they conceal a fighter's real role within a tactical system behind pretty patches of color.

We see more and more analytical images with red, yellow, and blue boxes describing where a fighter moves, how often he strikes, his preferred attack direction. It sounds very modern. The problem is: for a heat map to be meaningful, you need accurate movement data — usually from multi-camera tracking systems or body-worn sensors. At most Vietnamese martial-arts venues, that data is simply never collected. So what is a heat map drawn for?

The answer is very simple and also very troubling: it is drawn to create an impression. The writer picks a few actions the naked eye noticed, places them on a frame, and calls it a "heat map." The reader looks, sees science, and believes.

This is where I ask myself the question I still ask whenever I read an analysis that is too beautiful: Where is this fighter's true pulse beating, and is that chart counting that pulse correctly?

A fighter may have a high strike rate, but his real role in the team is to drag opponents into a corner so teammates can exploit it. Another metric may be low, yet he is the one setting the rhythm, the one making the whole fight unfold on his terms. No chart tells that story unless the reader understands the tactical system behind it. And in Vietnam, those tactical systems are often not recorded in writing — they exist in the coach's head and in the fighter's instinct.

The contrarian angle: what is missing is not data, but honesty about the lack of data

This is where I want to go against common intuition. Most people, hearing about a "data gap," will immediately think the solution is to collect more data — install cameras, buy software, hire statisticians. I do not think that is priority number one. Priority number one is changing our attitude toward not knowing.

Modern sports media culture has a strange fear: the fear of saying "I don't know." A preview without figures sounds unprofessional. A commentator who admits "I don't have enough information about this fighter" is seen as unprepared. And so, instead of admitting the gap, people fill it with estimates presented as fact.

I have been in this trade long enough to know the opposite is true. An honest analyst is one who states clearly what he knows, what he infers, and what he does not know at all. These three categories must be clearly separated in every piece. When the boundaries blur, readers lose the ability to judge for themselves — and that is the greatest loss of all.

A young editor once told me: "Your articles have many spots that say 'cannot yet be determined' — they don't sound attractive." I replied that those very spots are the most trustworthy part of the piece. If I say "I do not know how many head impacts this fighter has absorbed," I am handing the reader a solid brick with which to build their understanding. If I guess, I hand them a hollow one.

In the Vietnamese martial-arts context, this attitude matters even more because the market is small, the number of knowledgeable people is few, and each piece of false information spreads faster than each true one. A rumor of a fabricated injury can cost a fighter a sponsorship. An inflated number can make fans turn away when the truth is exposed. The dignity of an experienced person lies in not using emotion to compensate for a lack of facts.

Why this matters for the future of Vietnamese martial arts

One might ask: does a young martial-arts scene really need complex data? Just let fighters step into the ring, let fans cheer, and that is enough. I understand that view. But it overlooks a life-or-death reality.

A sport without data cannot protect its own fighters. Without data, no one knows how many head strikes a fighter has absorbed over a career, so no one can intervene in time before damage becomes permanent. Without data, no one detects a young fighter being pushed to cut weight excessively across consecutive events. Without data, no one can prove a referee's decision was wrong.

A sport without data also cannot develop commercially in a sustainable way. Sponsors want figures on viewership, engagement, and audience profile. Without those numbers, sponsorship money flows only to the loudest stories, not to real value. And the fighter — the one creating real value — receives the least.

This leads to a final paradox: precisely because there is no data, those who control the story hold the most power. Whoever tells the best story shapes the truth. Whoever has the loudest voice decides who is a star. The best fighters are not necessarily the most known. And in that data-less environment, selection becomes, instead of a scientific calculation, a noisy contest.

I once watched a good fighter in central Vietnam, who won many important fights in a row, yet was never invited to the big shows, simply because he was quiet and had no PR team. Meanwhile, fighters with more modest records who knew how to make noise were prioritized. The problem was not any individual. The problem was the system: when there is no data to measure real value, people are forced to measure by something easier — noise.

My match-watching experience and what lies beyond the results table

Over many years watching martial-arts bouts in Vietnam, I have learned that the most important things are often not recorded anywhere. They lie in the moment a coach whispers something to a fighter before he steps up. They lie in the way a fighter looks at the scale and then turns away. They lie in the silence of the locker room after a loss, when no one says a word to anyone.

I remember an older coach once told me: "I teach my fighters three things: technique, conditioning, and the ability to endure loneliness." Of those three, only technique can be quantified. Conditioning can be measured to some degree. The ability to endure loneliness has no metric that can measure it. Yet it decides who stands firm after the fourth round.

That is why I always believe that the truest pulse beats not in the stands, but beneath the feet of early-morning training sessions. In the stands, people see victory. On the training floor at five in the morning, people see the human being. And if the data of Vietnamese martial arts can record only what happens in the stands, then we will forever understand only half the story.

I count the rhythm of passes as if counting the breath of a collective breathing together — that is a line I often use when writing about football. But in martial arts, I count the rhythm of footsteps. Every fighter has his own tempo. Some step fast, urgent, as if racing the clock. Some step slow, firm, as if telling a story with their feet. When there is no data, that rhythm exists only in the eyes of those sitting close enough. And fewer and fewer people sit close enough.

At sixty-two, I have learned that time does not age a team; it only thickens the story. With Vietnamese martial arts, I believe the same: time does not make this scene smaller, it only makes the distance between what we know and what we think we know more visible. And that is an opportunity, not a tragedy.

Signals to watch

Instead of a summary, I want to leave a few markers for readers to observe in the coming months.

First, watch whether any organizer begins publishing detailed results with opponent names, fight dates, and chronological records. If one organizer dares to do this first, they will inadvertently set a standard for the rest. That is a signal more worth watching than any single bout.

Second, watch whether any fighter proactively discloses his weight-cut history and health status. In a market where silence is the default, whoever dares to speak up creates pressure for change. Transparency, once started, usually spreads faster than people expect.

Third, watch the young media people. A new generation of journalists, raised alongside data and able to distinguish real numbers from painted ones, may be the strongest force for change. They do not need anyone's permission to look things up, to verify, to ask questions.

And finally, watch the early-morning training sessions, when there are no spectators, no cameras, no results table. That is where the true pulse of Vietnamese martial arts beats. When the stadium is empty, we applaud from afar to remind each other that the heartbeat needs no distance. And while the data gap remains, what we need to do is not to invent numbers, but to sit closer — close enough to hear that pulse with our own ears.