Vietnam's Martial Arts Data Gap: When Taolu and Combat Sports Share One Column

A spreadsheet that refused to merge

In 2026 I tried something that sounded simple: combine two datasets I had kept by hand over four years into a single index — medals per unit of investment — for Vietnamese martial arts as a whole. The first file held performance scores: 9.60, then 9.65, then 9.70, awarded by judging panels on a ten-point scale. The second held combat results: wins, losses, knockout, decision, referee stoppage, round-by-round scoring. I pressed merge.

The spreadsheet returned an error.

It was not a formula error. I checked three times. The failure sat deeper: no shared unit exists that allows those two datasets to be added together. A forms athlete scoring 9.65 and a boxer winning 5-0 over three rounds are two numbers that cannot occupy the same column. I could have invented a conversion factor. People do. When I tried, I did not believe my own coefficient.

Three months later I went back through my notes from a national youth tournament and realised the problem was larger than a spreadsheet. The entire Vietnamese sports system runs on a classification scheme that nobody has ever written down. We call all of it martial arts, count all of it into one medal table, and tell all of it as one story. GPS numbers do not lie; only the people reading them do. Here, the readers have not even agreed on what they are reading.

Context: a medal engine that was never redefined

Martial arts are a pillar of Vietnam's regional medal haul, and that pillar was built by generations whose sports have entirely different origins.

In 2026, Nguyễn Thúy Hiền won the world wushu championship in changquan at seventeen. That result moved Vietnamese wushu from a recreational category into a priority-funded one, and it established a template that still holds: international success opens the funding valve, funding opens the selection valve, selection opens the results valve.

In 2026 in Sydney, Trần Hiếu Ngân won taekwondo silver in the 57kg division — Vietnam's first Olympic medal in any sport. That was kyorugi, the combat discipline, and it created a reference point Vietnamese media have used for two decades: martial arts are the shortest road to an Olympic medal.

At the same time, Vietnamese taekwondo has a second branch. Châu Tuyết Vân is associated with poomsae, the forms discipline, where an athlete performs alone and judges score technique, power, rhythm and precision. Poomsae and kyorugi belong to the same national federation, wear the same colours, and sit in the same medal column. They share no common unit of measurement.

Vovinam has a different history. Nguyễn Lộc founded it in Hanoi in 2026, and from the outset it was a system containing forms, paired routines, group routines and combat. When vovinam entered the SEA Games programme it brought a hybrid structure rarely seen elsewhere: at the same event, for the same delegation, some athletes are scored by a judging panel while others are declared winners by a referee after an opponent hits the floor.

Add judo, karate, pencak silat, kickboxing, Muay Thai, wrestling, boxing, wushu sanda and wushu taolu. Each has its own federation, its own coaching staff, its own competition calendar and its own results format. Above all of it sits a single medal table in which every medal is counted as one unit.

I call it the flat column. One column, one unit, every type of product.

In eleven years on the martial arts beat I have never seen an official document from Vietnamese sport defining taolu, poomsae, forms and combat as different product groups requiring different measurement. The label martial arts is a cultural label. It is not a technical label, and it has never been a data label.

This is why every performance analysis at national level collapses. To know what a martial arts investment returns, you must first know what kind of medal it produces. Without a classification system, there is no answer.

Axis one: how winning is determined

Every combat sport answers the same question differently, and the difference lies in who holds final authority.

In boxing, authority rests with three ringside judges or with an opponent's unconsciousness. The ten-point must system concentrates error in human beings but distributes it across three of them. In Muay Thai, damage tolerance is also assessed, so two fighters landing the same number of strikes can end with different results.

In judo, most contests resolve through ippon, an almost binary state: a throw meeting the standard ends the match immediately. In wrestling, the same logic applies through pinning situations.

In wushu sanda and kickboxing, authority sits with a combination of points and specific stoppage rules, such as a fighter being pushed off the platform or accumulating fouls.

In taolu and poomsae, the entire outcome rests with a judging panel and is expressed as a decimal. There is no attacking opponent. There is no physical feedback. The judges cannot be hit back, and the athlete cannot apply direct pressure except by performing better.

From a measurement perspective these are separate worlds. Combat is a closed feedback loop: the athlete strikes, the opponent reacts, the result is immediate, adjustment happens inside the contest. Forms is an open feedback loop: the athlete completes an entire routine, the result arrives afterwards, and no correction is possible within that performance.

One is a combat sport with noise; the other is a performance sport with a standard. Merging them into one data column is a foundational error, not a presentation error.

Axis two: data source and verifiability

Across the four types of data I collect, verifiability varies enormously.

Raw combat data — strikes thrown, strikes landed, accuracy rate, time spent cornered or pinned to the ropes — can be captured by fixed cameras and recounted by another person. I once recounted a women's lightweight boxing bout three times and produced three near-identical results.

Referee data — stoppage decisions, point deductions, warnings — is verifiable as fact but not as standard, because the standard lives inside a person's head.

Judging data — numbers like 9.65 or 9.70 — originates in perception. It can only be verified as consensus among officials, and it is influenced by running order, floor surface and crowd noise.

Physical and recovery data — heart rate, heart rate variability, lactate, training load — is the most precise but exists only at teams with sports-science investment, which is a minority.

These four cannot be blended into one index. They differ in origin, in error, and in contestability. The national medal table blends all four and assigns a single number to the output.

Axis three: decision cycles

This axis is the most neglected and the one that best explains why martial arts datasets are not comparable.

A boxer has roughly thirty seconds between rounds to receive feedback and adjust. A twelve-round fight can contain a dozen major tactical decisions. A four-minute judo contest can contain hundreds of micro-decisions about stance, grip and rotation.

A taolu athlete gets one attempt. One routine, one time, one number. No second round. No mid-stream adjustment. The entire decision cycle is compressed into months of preparation and a few dozen seconds of execution.

Years ago I proposed a run-up technique change for a young track athlete from Đồng Tháp, based on step frequency measured in the opening hundredth of a second. A veteran coach laughed at me: a woman pretending to understand biomechanics. I did not retreat. I collected slow-motion data across three sessions. Six months later she broke the national youth record over two hundred metres.

That story is not about martial arts, but it taught me a rule that applies everywhere: understand the decision cycle before comparing results. An athlete deciding twelve times in a bout and an athlete deciding once in a season cannot be judged with one ruler.

Axis four: weight classes and competitive density

Weight classes are a great invention of combat sport and a nightmare for anyone handling data.

In boxing, each division is effectively a separate tournament. A 57kg and an 81kg medallist at the same Games represent entirely different competitive curves, because opponent pools differ.

In taolu there are no weight classes. There are content groups: changquan, broadsword, straightsword, spear, staff, nanquan, taijiquan. Each has its own athlete trajectory and its own level of international depth.

In vovinam the structure is more complex. Combat has weight classes. Forms and paired routines do not. So a gold in the under-65kg combat division and a gold in men's paired routine are not equal in sporting value, yet they are equal as one point on the medal table.

One evening at a SEA Games I recounted a delegation's martial arts medals and found something I have used as a professional rule ever since. Remove forms events from the calculation and that delegation drops sharply in the martial arts ranking. Count only forms events and the ranking inverts. Same Games, same delegation, two opposite stories.

What happens when data is counted wrongly

These four axes are not an academic exercise. They affect four flows in the system.

Budget allocation. High-performance funding follows medal feasibility, and feasibility is assessed through past medal-table results. If the table blends categories, forms disciplines can look more productive than they are, while the cost of developing a world-class combat athlete is far higher than the cost of developing a forms athlete.

Sponsorship. Sponsors do not buy medals. They buy stories, images and frequency of appearance. A boxer fighting three bouts in a tournament generates dozens of broadcast moments. A taolu athlete performs once, for under two minutes, and if I am not filming from the right angle, the best moment passes in silence.

Talent development. An eleven-year-old faces two paths. The forms path demands patience, tolerance for repeating one routine thousands of times, and a body matching a narrow standard. The combat path demands pain tolerance, reflexes and psychological stability under return fire. These are different kinds of people. When selection does not distinguish them, we send the wrong type to do the wrong job.

Career length and post-retirement support. The combat career curve is short and steep: peak often arrives before twenty-five, followed by injury, declining reflexes and a transition gap with no system. The forms curve is longer and gentler, but receives less attention when transition arrives because visibility is lower.

I keep one note that has troubled me for years. A young fighter once asked me to read my analysis of his bout. He read closely and asked the right questions. Three months later he disappeared from the entry lists. I do not know what he does now. Nobody does. No database records an athlete leaving the system. That is the largest data gap in Vietnamese martial arts, and it has nothing to do with technique.

The contrarian angle: a single federation would be a mistake

The most common response I hear is a proposal to create one national martial arts federation, consolidating everything under a single authority to standardise data and allocate resources.

I think that solution is wrong at the foundation.

First, these disciplines differ not only in rules but in training philosophy, optimal body structure, peak age and community culture. A single federation would have to serve multiple conflicting objectives. Global sporting history shows multi-discipline federations concentrate resources on whichever group can deliver the most medals, and that is almost always combat.

Second, and more important: the problem is not organisational. The problem is the absence of a shared unit of measurement. Changing structures without changing measurement only centralises the error.

There is a sharper contrarian point, and I believe it is the real blind spot. Sports media, myself included, is one of the actors producing this classification failure. We need one big, simple, sellable story. Vietnamese martial arts is that story. It is compact, heroic, traditional. The demand for a single narrative forces us to bundle what cannot be bundled and to stay silent about difference.

In 2026, covering the World Cup in Russia, I mispronounced a player's name three times in the first half. Social media attacked hard; someone suggested I go back to writing about fashion. I did not delete the post. I published an apology, then spent thirty days reviewing dozens of broadcast matches to transcribe local pronunciations and build a glossary with cultural notes. Mispronouncing a player's name taught me how to listen to a match. And when I listened more carefully, I realised I had been calling two people in two different professions by the same name for years.

When to stop measuring and start deciding

There is a distinction I insist on. Verification phase and decision point are not the same thing. A verification phase means data is genuinely insufficient and more collection will change the answer. A decision point means enough data exists and the cost of waiting exceeds the cost of being wrong.

On Vietnamese martial arts classification, we passed the decision point years ago. We have enough evidence that the current scheme distorts funding, valuations and careers. Waiting for perfect data is a way of avoiding the decision.

An architecture, not a slogan

What I propose is small and immediately applicable at federation and organiser level.

First, every publicly released medal table must label the product group of each medal, distinguishing at minimum combat from performance. The cost is close to zero; the value is close to everything.

Second, every medal table must carry minimal metadata: competition tier, number of participating nations, number of athletes in the relevant event, and the method of determining the winner. Without those four, a medal is only an object.

Third, build two separate indices instead of one. A combat efficiency index measuring win rate against ranked opposition, independently verifiable. A performance efficiency index measuring score stability across events and consensus across different judging panels. The two must never be summed.

Fourth, create a single athlete registry that also records what happens after someone leaves the system. Data on those who leave matters as much as data on those who stay.

Fifth, for people in my trade: state clearly in the opening paragraph which mechanism the athlete competes under. Readers deserve to know whether they are reading about someone fighting an opponent or someone fighting a standard.

An empty stadium taught me that passion needs no seating. In 2026, when the pandemic erased my fieldwork, I used simulation to rebuild cancelled fixtures. I launched five projects at once and only one survived. The first interactive piece drew three times the platform's previous engagement record and made several veteran colleagues wince. What I learned had nothing to do with simulation. It was about defining your variables before running the model. A model with vague variables produces beautiful, meaningless output. Exactly like today's martial arts medal table.

An open thought

Vietnam does not lack good fighters. Vietnam does not lack medals. Vietnam lacks a ruler, and lacks the courage to admit that some things cannot be measured with the same ruler.

If tomorrow every Vietnamese martial arts federation sat down and did one thing — write down the definition of their product group, with their own measurement method — every subsequent analysis would change. Money would flow more accurately. Sponsors would price more accurately. Athletes would know where they stand in a real system rather than in a flat column of numbers.

Readers of results always want one number to compare. My job is to tell them that some numbers are not permitted to stand side by side, and that our habit of placing them side by side for years has harmed the very people who produced them.