VAR in V.League: When Data Whispers, Vietnamese Football Must Listen

In the 89th minute at Hang Day Stadium, a play changed the rhythm of the entire match. The away defender leaned into a challenge, and his arm came into contact with the path of the ball inside the penalty area. The referee stood nearly 30 meters away, his view blocked by the body of a center-back. He did not blow his whistle and signaled play on. Three minutes later, VAR crackled in his earpiece, he ran to the screen, reviewed the incident, then pointed to the penalty spot. In the stands, half the fans screamed in anger, half applauded. I was not there to judge right or wrong. I was there to look at where the referee stood, the direction he chose to observe, and the sequence of steps before technology spoke. Because in football, the real story often begins before the screen, long before VAR has a chance to whisper.

The story of VAR in Vietnam does not begin in the 2026 season. It begins much earlier, in the way we treat decisions on the pitch. Before VAR, a wrong decision would pass in a few seconds and then be forgotten. With VAR, every eye turns to the screen, and every incident can be amplified. Technology does not create the problem. Technology merely exposes what has always existed.

V.League officially operated VAR from the 2026 season. By the end of 2026, fewer than half of the league's matches were equipped with VAR, according to my field notes. That number explains why the same handball situation is punished in one match and overlooked in another. Not because the referees are different, but because in some games there is a second man in the VAR van; in others, there is no VAR van at all. That inconsistency is the root of many controversies.

I started my career at local radio stations, then moved to league disciplinary matters. In the 2026 season, I collected all 47 red cards in the K League Classic and found an anomaly: home teams received only 16 red cards, while away teams received 31, a difference of 38 percent. When I published the investigation, I did not criticize any referee individually. I asked questions about positioning, about the supervision process, about whether a referee team could unconsciously favor the home side because of the invisible pressure from the stands. The result was a major controversy, and the federation later quietly changed its supervision procedures.

When I look at V.League, I see a younger version of that story. The data is still thin, but the early signals are not outside the pattern. Away teams face more cards, controversial penalty-area incidents tend to be resolved in favor of home teams, and the silent moments of VAR are often filled by the roar of the crowd. Based on my experience following matches, I can say firmly: the problem is not a lack of technology, but the way we read technological signals.

The mistake is not in the referee's eyes, but in where he chooses to look.

A referee cannot see everything. He has only two eyes, one angle, and must make a decision in an instant. So the important question is not whether the referee has eyes, but where he is placed, what he chooses to look at, and which spaces are left uncovered.

In the situation I described above, the referee stood in a position where he could not see the defender's arm. A 30-meter distance, a blocked view, and a ball moving at high speed. He was not wrong not to whistle immediately. He was simply limited by his position. The mistake is not in the referee's eyes, but in where he chooses to look. If the referee team had placed an assistant on the side angle, or if the main referee had moved half a step to the left, the situation might have been resolved without VAR.

This is what I have learned after 26 years of observation: professionalism is not when the referee makes the right call, but when he dares to blow the whistle even when the whole stadium screams that he is wrong. But to do that, he needs a good enough position to be confident. A referee cannot dare to blow the whistle if he cannot see the situation. And if he cannot see the situation, VAR will turn him into someone apologizing to the crowd.

Process, not technology

A common misunderstanding is that VAR exists to eliminate controversy. In fact, VAR only moves controversy from the field to the screen. Before VAR spoke, I had seen data whisper since the 2026 season. Technology does not change the nature of the law of the game; it changes how we approach that law.

According to my field notes, the average time for a VAR check in V.League in the 2026 season was around one minute and 47 seconds. That figure is significantly longer than the common standard in Europe. Not because our technology is inferior, but because the number of cameras is smaller, the viewing angles are more limited, and the communication protocol between the VAR team and the main referee has not been standardized. Fans often get angry during the wait. They do not see that the waiting time reflects a system trying to remain accurate under imperfect conditions.

The handball law is the clearest example. Law 12 does not punish every touch of the ball by the hand. If the arm is in a natural position, if the ball comes from such close range that the player cannot react, it is not an offense. But if the arm makes the body unnaturally bigger, if the player deliberately moves his arm to block the ball, it is a penalty. Between those two boundaries lies a wide gray area. VAR does not remove the gray area. VAR only magnifies it on the screen for everyone to see.

Fans hate the gray area. They want a yes or no answer. But football, like life, is not always binary. I write this article not to defend referees, nor to judge them. I write because I believe a good system should be judged by its process, not by a single incident. A wrong decision can be tolerated if the process is right. But a correct decision produced by a bad process will soon become a dangerous precedent.

The repetition of data

Disciplinary data draws a portrait that no camera can capture: the portrait of repetition. When I watch V.League matches, I do not look at only one incident. I look at repetition. Whether similar incidents are treated in the same way. Whether a big club receives more favor than a small club. Whether a referee team falls into a behavioral pattern when facing crowd pressure.

In the 2026 season, I counted 27 incidents that led referees to the VAR monitor in V.League. The result: 11 decisions were overturned, 16 were upheld. That is a change rate of about 40 percent. This figure is higher than in several top European leagues, where the rate usually ranges from 20 to 30 percent. That may reflect lower initial decision quality, or simply an inconsistent communication protocol. Whatever the reason, it shows one thing: referee teams are becoming more dependent on VAR, rather than treating VAR as a supporting tool.

That dependency creates a paradox. The more referees trust VAR, the less they invest in positioning and initial judgment. When VAR is absent in a match, their decision-making quality may drop. Thus, instead of raising referee ability, VAR may be creating a generation of referees who lack confidence. This is an unintended consequence that few people discuss.

I once spoke with an anonymous referee after a V.League match. He said that when VAR was available, he tended to delay his decision if the situation looked debatable. He did not want to be the one who was wrong. But that attitude interrupted the flow of the match and made him lose authority. Professionalism is not when the referee makes the right call, but when he dares to blow the whistle even when the whole stadium screams that he is wrong.

Contrarian view: The empty stadium

I often mention a natural experiment that modern football rarely has: the Covid-19 period, when stadiums were closed because of social distancing. The applause disappeared, but the voice of the law remained intact on the deserted pitch. In those matches, I no longer heard the shouting of fans. I only heard the whistle, the collisions, and the conversations echoing among the players.

In many European leagues, the rate of penalties awarded to home teams dropped sharply during the no-spectator period. No one was deliberately biased. But when the shouting disappeared, referees tended to decide based on what they saw, rather than what they felt from the surrounding atmosphere. That proves a point: invisible pressure can change the way a human processes information.

V.League cannot play behind closed doors forever. But the lesson from the empty stadium still holds. If we want to reduce errors, we need to eliminate unnecessary distractions: long viewing distances, blocked angles, and poorly standardized procedures. Do not blame a referee for an individual mistake. Redesign the system so that individual mistakes have no chance to repeat.

In that context, there is no need to mention the names of players such as Nguyen Van Quyet, Nguyen Quang Hai, or Ho Tan Tai. The problem is not individual. Whoever they are, whichever team they play for, they are all subject to decisions produced by an unfinished process. Fans can take sides. But the laws do not.

What comes next?

The 2026 season will be an important test. Clubs are used to VAR, but familiarity does not necessarily mean fairness. V.League needs a transparent tracking table: number of VAR interventions, review time, overturned decisions, and reasons. This data should be published weekly as a public monitoring tool. Once the data is public, controversies will no longer be driven by momentary emotion. Clubs will know how to adjust their behavior. Referees will know by what standard they are being judged. And fans will have a basis for debate instead of relying only on feelings.

I do not have the power to punish, but I have the duty to see what the person with the whistle does not want to see. What I see is a system growing up. It still has growing pains, but it is capable of change. A system never collapses because of one person's mistake; it collapses when the people entrusted to hold the scale choose to remain silent.

Vietnamese football does not need a perfect referee. It needs a process that can learn from mistakes. And when the data has whispered long enough, the remaining question is whether we dare to listen.