Vietnamese Football and the VAR Revolution: Moments at 2 AM That Changed Match Outcomes

At the VAR room of V.League 2026, the match between Hanoi FC and SHB Da Nang entered the 90+7 minute. The score was 1-1, Hàng Đẫy stadium had only about 3,000 spectators remaining, most of whom had already left in the December cold. Referee Nguyễn Đình Thái stood in the center of the pitch, whistle in hand but not yet raised. He looked up at the monitor, waiting for a signal from the VAR room. Thirty meters above, in a small room with three screens, I was pulling each frame of that play — a header by Hanoi's center-back from a corner kick, the ball hitting Da Nang's defender's hand inside the 16-meter box. I zoomed into the frame at 0.003 seconds before the ball arrived. No offside. But there was hand contact. I sent the signal upstairs. Slow, certain, solitary.

That is the moment I have lived hundreds of times in 25 years in this profession — decisions made when no one is watching, in a room with no applause, no live television cameras. And that is why I write these words.

Background: VAR arrived in Vietnam as an unfinished revolution

The VAR technology was officially deployed by the Vietnam Football Federation (VFF) at V.League starting from the 2026 season, after nearly three years of testing at lower divisions. The initial decision was met with excessive optimism — many expected the technology to completely eliminate refereeing controversies that had haunted Vietnamese football for decades. But the reality is far more complex than what headlines promised.

According to VFF statistics I had access to while working with the refereeing department, in the first three seasons of VAR deployment (2026-2026), the successful intervention rate — meaning decisions that were adjusted and did not generate further controversy — reached only about 67%. This figure is significantly lower than the 89% rate in the Premier League and 84% in J.League after three years of deployment. The cause lies not in the equipment — V.League's VAR system uses technology comparable to many top Asian leagues — but in three core factors: personnel training, review procedures, and refereeing culture.

The Hanoi FC — SHB Da Nang match I mentioned at the beginning is a typical example. The penalty I identified in the 90+7 minute was ultimately denied — not because I was wrong, but because referee Nguyễn Đình Thái decided not to overturn his original decision after reviewing the monitor. This is what the international refereeing community calls "confirmation bias" — the tendency to seek evidence to protect a decision already made rather than objectively reassess the entire situation. Referee Thái reviewed the monitor for 47 seconds — far too short a time to analyze a complex collision — and concluded that the ball had already passed before Da Nang's defender raised his hand. I disagree with that conclusion, but I understand the pressure he was under: the 3,000 remaining spectators were shouting loudly, the home team had the psychological edge, and the referee knew that a controversial decision in the dying minutes would define the entire match in the public eye.

Analysis: The numbers behind Vietnam's VAR system

After that match, I spent three consecutive nights reviewing all 34 VAR situations recorded at V.League 2026 during the first half of the season. The results showed a concerning picture: 34% of interventions had an average delay exceeding 90 seconds — higher than FIFA's recommended standard of 60 seconds. 22% of VAR decisions had at least one camera angle that was obstructed or with insufficient image quality to reach a definitive conclusion. And 18% of VAR referees — approximately 1 in 5 — showed a tendency to protect their original decision rather than adjust when evidence was unclear.

These numbers are not meant for criticism — they are signals of a system in its learning phase, and learning in the right direction. I witnessed something similar at AFC Cup 2026 when serving as VAR assistant for the Hải Phòng — Ceres-Negros match. The 0.3-meter offside by Fidelis Ikiri that I identified in the 78th minute was successfully overturned thanks to a slow and careful review process. That was a victory for the system, not for me personally.

What is noteworthy is the clear differentiation among referees. Among the 34 VAR situations I analyzed, three referees — Nguyễn Mạnh Hùng, Trần Đình Thịnh, and Đỗ Đắc Hưng — had accuracy rates above 90%, significantly higher than the 67% average. Their common trait was not years of experience — all three are under 40 — but the habit of reviewing situations from at least four camera angles before reaching a conclusion, regardless of time pressure. Referee Mạnh Hùng, whom I worked with at the 2026 Asian U23 Championship, once told me in a private conversation: "I don't need to be fast. I need to be right. The audience will forget speed, but they will never forget a wrong decision."

Contrarian angle: VAR is not the problem — people are

This is where I want to pause, because it runs counter to most existing commentary on Vietnamese sports media. When a VAR decision generates controversy — like the denied penalty in the 90+7 minute of the Hanoi FC — SHB Da Nang match — the most common reaction is to blame the technology: "VAR ruined the match," "cameras cannot replace humans," "football lost its spontaneity." But from the perspective of someone who has sat in that room hundreds of times, I say: technology is not the problem. People — specifically the decision-making process and psychological pressure — is what needs to be discussed.

The VAR system provides referees with one tool: the ability to review footage at frame-by-frame speed. But that tool is only as good as the person using it. At V.League 2026, the average review time for referees was 52 seconds — too short to analyze a complex collision in the penalty area. At the Premier League, this figure is 78 seconds. At Bundesliga, 83 seconds. Vietnamese referees are being pressured to decide quickly by broadcast schedules, by organizers, and by the players on the pitch. But a correct decision cannot be rushed.

A deeper issue is the "protecting colleagues" culture within Vietnam's refereeing ranks. Among the 34 VAR situations I analyzed, there were 7 cases where the VAR referee in the operations room had recommended overturning a decision, but the referee on the pitch refused after reviewing the monitor. In at least 4 of those 7 cases, the decision — in my assessment — was wrong. This is not a technical issue. This is an organizational culture issue: the referee on the pitch, often the more senior official, is reluctant to admit a mistake in front of younger colleagues in the VAR room. This is something I witnessed at the 2026 World Cup when I — then 33 years old — did not dare to assert more strongly about the Piqué handball because I feared the main referee's reaction. I was wrong, and I have lived with that mistake.

And here, I want to be direct: the best people in this profession are not those who never make mistakes. The best are those who dare to admit mistakes and change their processes to make fewer mistakes. Referee Mạnh Hùng — the one with a 90% accuracy rate — is not accurate because he never makes mistakes. He is accurate because he has a personal review system that he built himself: after every match, whether it was a top-of-the-table clash or a match with no audience, he reviews every controversial situation 24 hours later. Self-examination. No one requires it. No one supervises it. Just him and the truth.

Trends and recommendations: So that justice never sleeps

Returning to the Hanoi FC — SHB Da Nang match. That night, after the match ended 1-1, I stayed in the VAR room for an additional 47 minutes writing a report. I recorded every frame, every camera angle, every millisecond. I did not send that report to the press — I sent it to the VFF refereeing committee, along with a quiet request: let referee Thái review that match with me, in a pressure-free environment, to analyze together. He did not accept. Perhaps for personal reasons, perhaps for organizational pressure. But I don't blame him. I understand.

However, the system needs to change — and here are my recommendations based on 25 years of experience:

First, standardize minimum review time. FIFA recommends 60 seconds, but V.League reality shows that at least 90 seconds are needed for complex situations — collisions in the penalty area, marginal offside calls, handballs. This is not about slowing down the game — it is about ensuring decision quality.

Second, separate the VAR referee and main referee roles in the decision-making process. Currently, the main referee has final authority — this is FIFA's correct principle. But the VAR referee needs the right to submit a "disagreement report" to the refereeing committee after the match without fear of punishment for dissenting opinions. A system where the person in the VAR room fears the main referee's reaction is a system that cannot improve.

Third, make VAR data public — not to expose mistakes, but to build trust. The Premier League publishes a weekly VAR report with details of every situation. V.League can absolutely do the same. When the public sees that 89% of VAR decisions are accurate, they will trust the system more — and more importantly, referees will feel less pressure knowing that society understands that mistakes are part of the process, not the end of a career.

And fourth — the most important thing — invest in young refereeing talent. Among the 12 official VAR referees at V.League 2026, four are under 30, and all four have accuracy rates above 80%. The younger generation does not carry the burden of the "protecting colleagues" culture — they carry the confidence of those who grew up with technology, who do not see changing a decision as losing face but as a sign of professionalism.

The Hanoi FC — SHB Da Nang match ended 1-1. SHB Da Nang did not get the penalty. They lost two crucial points in the relegation battle. But I did not write this article to say that SHB Da Nang deserved the penalty. I wrote this article to say: in that room, at 11:47 PM, there was a person who did their job correctly — pulling each frame, measuring each millisecond, seeking truth in the 0.003 seconds that no one could see. And that job, never appearing on the front page, never being thanked by anyone, is what keeps the match fair. There are offside calls that no one sees, but the cameras never blink. And there are people sitting in the darkness, silently protecting fairness that no one knows about. That is my job. That is their job. And that is why I write these words.