From an Empty Report to VAR in Vietnam: The Cost of a Conclusion Without Data

One evening in March, in the technical cabin of a sports broadcaster in Vietnam, a production assistant placed a spreadsheet in front of me to prepare that round's VAR analysis segment. I opened the file. The header row was tidy: match code, minute, team, error type, review duration, camera count, ball speed at the point of contact. Below it was white space. Not a single data row.

The director asked through my earpiece: "Can you give us a conclusion yet?" I said: "No. And if you need me to conclude in thirty seconds, I will have to invent it."

The recording ran fifteen minutes late. In those fifteen minutes I made three phone calls, asking the same question: "Do you have an official record of this incident, and when was that record created?" Three people, three identical answers: no official record had been published. They had memories. Memories cannot be counted.

That is why I am writing this. Not to defend one referee, not to attack one decision. I am writing because the biggest problem with VAR in Vietnam today is not technology, not the person holding the whistle, but the fact that the entire argument takes place on an empty data foundation.

Every VAR controversy in Vietnam ends in emotion, because it begins in emotion and has no layer of data in between to stop it.

Context: A league learning to trust the screen

According to the organisers' announcements, VAR entered V.League 1 from the 2026 season, initially deployed at a selected group of matches and then gradually expanded round by round. That expansion depends on three very specific variables: the number of camera angles available, the supply of certified VAR personnel, and stadium connectivity. These are technical variables — measurable, verifiable.

A timing note, which by habit I place at the top of every piece: every figure about the number of VAR-enabled matches here is taken from the organisers' announcement at the time I checked it. If the organisers update, the figure in this article becomes outdated. When that happens I will correct it, and I will state the date of correction. The law does not live in memory; it lives in data.

Before VAR, a decision in V.League existed in only two places: the referee's eyes and the crowd's memory. Both are non-reproducible data sources. A spectator in Stand A sees the ball hit the hand. A spectator in Stand B sees it hit the chest. Both are honest. Both are wrong to some degree, because the human eye at forty metres cannot resolve the boundary between armpit and shoulder.

That is the technical reason football law had to change. In 2026, the international law board clarified that the upper boundary of the arm for handball purposes extends down to the armpit. Before that, the common reading started at the shoulder. The difference between the two readings is a few centimetres, but it decides a penalty, a card, a match, and sometimes a season.

In 2026, the handball law was rewritten again, limiting handball to the arm below the armpit and removing intent from certain goal-scoring and goal-creating situations. In 2026, the rules were refined further. Each revision makes thousands of past incidents incomparable with new ones.

This is the point Vietnamese media, and part of the audience, routinely skip. When a commentator says "they didn't give this years ago", he is comparing two different legal texts and calling them one. Referees do not need protection. They need to be understood through correct numbers.

The professional context in Vietnam adds another layer. Most of our referees and assistant referees work semi-professionally. They have other jobs, other families, and they step onto the pitch at weekends to absorb the pressure of a professional match. A referee in Europe can spend forty hours a week reviewing footage.

That asymmetry is not solved with money. It is solved with systems. And a system begins with a page that has a data row on it.

Core analysis: what I learned by counting every decision

In August 2026 I started a personal project nobody commissioned. I logged every VAR decision in La Liga and the Champions League into a spreadsheet: error code, minute, camera distance, ball speed, the time from the referee stopping play to the final verdict, and the outcome after review.

I did this for four straight weeks, then kept it as an evening habit. When the pandemic stopped football in March 2026, I had 523 matches in the book. I locked the sheet, ran the counts, and got a result that made me sit still for a long time: 74 percent of the offside decisions overturned by VAR had a response time on average 47 seconds slower than other error types.

I published a 48-page report on my personal blog. In it I proposed a soft 30-second cap per review. The Valencia football federation did not accept it wholesale when they invited me to consult on process reform, but it opened a three-hour meeting after which I understood the most important thing.

Review time is not the problem. The problem is review time without an accompanying explanation.

A stadium crowd can accept waiting forty seconds. They cannot accept forty seconds of absolute silence — no image, no signal, no reason. Information gaps are always filled with the worst hypothesis. That is a basic psychological rule, and it explains most VAR controversies in Vietnam.

From those 523 matches I drew a model I now carry into any league I follow, including V.League. I call it the three-colour model.

Green is incidents where the law is clear, the text exists, the source is verified, and the conclusion does not depend on anyone's eye. Amber is incidents where the law exists but interpretation is not yet consistent across referees, leagues and seasons. Red is incidents where there is no data to conclude — and under a rule I set for myself in 2026, red does not permit me to reach any conclusion at all.

My mistake in June 2026 fell into the red category. In the opening Group C match between France and Australia at the World Cup, in the 55th minute, the referee consulted VAR and awarded France a penalty for a handball by Josh Risdon. I was in the studio of a Valencia radio station as a rules expert. I stated firmly that the ball hit the armpit and therefore was not an offence, based on the reading I had learned in 2026.

My colleague beside me corrected it live on air: since 2026, the armpit zone had been inside the scope. More than four million listeners heard me get it wrong. The editorial desk had to issue a correction. For the first time in thirty years, I was contradicted directly, publicly, and correctly. I was wrong once, and I lost an entire reputation.

The lesson was not "memorise more". The lesson was: when you feel most certain, that is exactly when you most need to check.

Back to V.League. If you apply the three-colour model to VAR controversies in Vietnam over the past two seasons, I believe you will find a striking structure. Most of the handball incidents argued about loudest in the media belong to the amber group, not the green group. The line between "arm in a natural position" and "arm making the body unnaturally bigger" is a judgement, and judgements need standard data for calibration.

The problem in Vietnam is that we do not have that standard data. Nobody publishes a season-long log of VAR decisions with error type, review duration and outcome. Without that log, every round starts from zero. Fans cannot compare this round's incident with last round's. Commentators cannot say "this has been given three times this season". And referees have no way to demonstrate that they are being consistent.

One match is just a story. Five hundred matches are the law.

I tried a small experiment to demonstrate this. In a recent season I logged the VAR incidents I watched live, with the same columns as my 2026 sheet. After about twenty matches I noticed a repeating pattern: offside incidents near the vertical touchline took longer to review, not because they were geometrically harder, but because the camera angles were insufficient and operators had to wait for extra feeds.

This is a purely technical finding, with nothing to do with referee competence. It shows that part of the pressure Vietnamese referees carry does not sit with people but with the hardware configuration at each stadium.

And that can be fixed with budget, planning and a task list. It cannot be fixed by abusing referees online after every round.

The contrarian angle: the illusion that silence protects referees

There is an argument I hear often in both Spain and Vietnam: do not publish the audio between referee and VAR room, do not publish a decision log, because doing so will expose referees to more attacks. That argument sounds kind. It also sounds reasonable in a football culture where referees are semi-professional, underpaid and vulnerable.

I do not believe that argument, and I do not believe it on feeling. I do not believe it on one observable point: in football, silence does not reduce suspicion. Silence grows suspicion.

When a decision has no explanation, fans do not default to believing the referee was right. They default to believing something is being hidden. Information gaps are never left empty — they are filled with the worst hypothesis, and in football the worst hypothesis is always bias.

Psychological research on belief in sport shows something fairly stable: fans rate decisions against their own team as wrong with a far higher probability than reality warrants, and that distortion grows when no explanatory information is available. This is the mechanism of confirmation bias, not of truth. And nothing counters confirmation bias more effectively than raw data.

I must state my confidence level clearly here. I have no quantitative data on whether publishing decision logs increases or decreases referee abuse in Vietnam, because no log has been published to compare against. My conclusion stops at this level: available data from leagues that have published suggests publication does not create a new wave of personal attacks, while non-publication creates a different kind of attack — on the whole system, more frequently, and without end.

Vietnam has a specific variable. Because referees are not protected by an official communications mechanism, every controversy is handled at the individual level: a named referee is dissected, along with his private life, his day job and his family. There is no neutral document to argue on his behalf.

That is the paradox of silence. It is designed to protect individuals, and it ends up exposing them.

I have a personal fixation on this, and it connects to another subject I have tracked for years: the pressure on people returning from injury. Demanding that a player "prove himself" in his comeback match is a cruel way of thinking, and it raises the risk of re-injury. Do Hung Dung returning after his 2026 leg fracture is an example anyone following Vietnamese football remembers. He came back, and he carried an expectation built before he touched the ball.

The same mechanism is at work with referees. We assign an individual responsibility for solving a systemic problem, and when that individual cannot solve it, we draw conclusions about his character.

When I counted every passage of play, I understood that the law does not judge anyone. It only waits to be applied correctly. The problem is that it waits a very long time, and while it waits, everyone else gets to speak first.

What can change, and what will not

At 67, I do not need to remember everything. I need to know how to find what is correct. I was wrong once because I was certain, and I spent more than a year rebuilding what I lost, with a year-by-year law reference table and one personal rule: every analysis piece carries at least one note on when the legal text took effect.

In Vietnam, I believe the work required is a very concrete sequence. It does not need grand resolve, only discipline.

First, publish a VAR decision log for each round in an open format, with a minimum of these fields: match code, minute, team, error type, review duration, verdict before and after review, and the effective date of the law applied. This log needs no interpretation and no commentary. Bare numbers are enough to create consistency, because when you know you will publish, you self-correct.

Second, set a soft cap on review time with one mandatory rule: if the cap is exceeded, a short announcement must go to the stadium and the broadcast audience explaining why. Thirty seconds or sixty seconds matters less than the gap being filled immediately, with one sentence, at the moment it appears.

Third, apply three-colour classification to contentious incidents and publish that classification. Red is allowed to end with the sentence "insufficient data to determine". This is a sentence Vietnamese football is not used to saying, and it is the most important one on the entire list.

Fourth, retrain against a law reference table with effective dates. I am not talking about memorisation. I am talking about an internal document updated whenever the international law board issues new text, mandatory for every referee, assistant referee, and every commentator in the sports media, to check before speaking. I have been the one who spoke wrong. I know the price.

Fifth, publish part of the VAR room audio, in redacted form, after the match. Several leagues have trialled referees announcing decisions live in-stadium over the public address system, and while application varies, the direction is clear. Vietnam has the advantage of arriving late: we can learn from others' mistakes without paying with our own credibility.

There is one thing I do not propose, and I want to be explicit: I do not propose abolishing VAR. There is a group of fans in many countries, Vietnam included, who believe removing VAR would restore peace to football. I understand the feeling. But the data does not support it. Football before VAR was not more peaceful. It was only loud in a way that could not be verified.

A shocking decision is not reckless if it is built on five hundred foundations. What I mean is not that Vietnamese referees need to be bolder. What I mean is that they are being asked to be bold without being given foundations.

I once wrote an article defending referees with bad statistics. That was the day I betrayed my own principle. Since then, whenever someone asks me about a specific incident immediately after it happens, I answer with a question: "Do you have the record yet?" Not to dodge responsibility. To know which colour I am standing on.

Vietnamese football is at a stage where everything needed to build a VAR data foundation already exists: enough matches, enough variety of incidents, expanding infrastructure, and a young analytical community, eager to learn, better equipped to work with data than I was at their age.

What is missing is an administrative decision, a spreadsheet with the right header row, and someone responsible for filling in the first line. The first line is always the hardest. After that, counting becomes habit.

If readers want to verify the numbers in this article, I encourage them to do what I still do: open your own spreadsheet, log the last ten VAR incidents you watched, and count. You will discover what I discovered by the fiftieth match: your sense of how consistent referees are will change, and it will change in their favour.

When I counted to match five hundred and twenty-three, I stopped trusting my own memory. That was the day I began doing this job seriously.