A blank cell is not a 10-9: Vietnamese combat sports and the verdicts that have no data

Three judges sat less than four metres from me, backs to the crowd, pens in hand. The final round had just ended. One fighter raised both arms; the other folded forward, gasping, and in the silence before the announcer read the verdict I heard a voice from the third row clearly: "The judges have been paid." None of the three turned around. They were adding up the rounds in their heads, and each was adding them a different way.

The first whistle is blown by the camera, and I hear it as if the whole world were holding its breath. In combat sports the camera does not blow a whistle. It records and then goes quiet, leaving a man sitting at floor level to decide whether what it recorded is enough to overturn a verdict. Nine years of watching and five years of refereeing taught me something uncomfortable: most arguments in Vietnamese combat sports are not about referees seeing the wrong thing. They are about there being no data to cross-check against, with both sides assuming a blank cell means the blank favours them.

Football has touchlines, fifty frames per second to measure a hand, and a clause called "clear and obvious error" that lets a VAR team call a referee to a monitor. Combat sports do not work that way, and the difference is structural rather than technological.

In professional boxing a three-minute round is scored on the 10-point must system: the winner takes 10, the loser takes 9, or 8 if he is counted in that round. Three judges sit on three sides, score independently, and none may review footage while scoring. Under the Unified Rules of MMA — adopted by the Association of Boxing Commissions in 2026 and applied by most professional promotions — the structure is the same: three judges, ten points for the round winner, with criteria of effective striking, control and aggression. None of those three terms has a unit of measurement. Nobody can convert "control" into grams or seconds, and nobody can prove from a still frame that one punch was ten per cent more "effective" than another.

Then there is the fact that the word "martial arts" in Vietnam bundles several rule universes together. Vovinam, founded by Nguyen Loc in Hanoi in 2026, is scored on difficulty and performance quality — applying win-loss logic to it is meaningless. Pencak silat, which entered the Asian Games programme for the first time at Jakarta in 2026, has a combat discipline but a scoring scale unlike boxing's. Amateur boxing has been through a decade of governance turbulence: in June 2026 the International Olympic Committee suspended recognition of the International Boxing Association (AIBA, now IBA); boxing at Tokyo 2026 was run by an IOC task force, and at Paris 2026 by the Paris 2026 Boxing Unit. At the SEA Games 31 held in Hanoi in 2026, Vietnam topped the medal table with a substantial contribution from martial arts events — but every one of those medals was awarded under a different rulebook.

The technical crux sits here: football can separate observation from judgement with a single frame; combat sports cannot, because in combat sports observation and judgement are the same motion.

In a three-minute round where neither fighter lands anything significant — common in the lighter divisions, where two men evade equally well — the judge still has to write 10-9 for somebody. The scorecard has no draw box. It has no "insufficient data" box. It has no "this round was meaningless" box. Three columns, five rows each, and all fifteen rows must carry a number.

That is where almost every argument I have ever sat through begins. A combat sports scorecard has no room for emptiness, so people are forced to fill it with a story — and the story is always written before the fight starts. The favourite arrives with a chapter already drafted. The crowd's darling arrives with another. The man on a three-fight streak, the man back from injury, the man the promotion wants to push — each has his own. The round does not decide the story. The round only decides which story gets told.

I saw what nobody else saw, and I have to live with it. Sitting at floor level, level with the fighters' knees, I see what broadcast lenses do not prioritise: a lead hand dropping seven centimetres in the fourth round and being pulled back a beat later; the other man's breathing changing frequency after the second clinch; a corner towel thrown half a second later than in any previous bout. None of it appears on a scorecard. But it is the only data I have, and it cannot be submitted as evidence.

The same misreading appears where few expect it: at the scales. After the death of fighter Yang Jian Bing in December 2026 from complications related to weight cutting, ONE Championship moved to multiple weigh-ins with hydration testing instead of a single early weigh-in. The reason is technical: "made weight" is a yes-or-no cell, while "hydrated" is a continuous range. When a fighter steps on the scale and the number matches the division, the cell turns green and the entire risk band behind it vanishes from the report. Nobody writes into the record that the man wrestled with four kilos of water in the ten hours before the weigh-in.

In Vietnam, after every controversial result, the first thing to appear is an accusation, never a document. An accusation is a narrative event. A ruling by a judging panel is a compliance event. The two often share the same headline but carry very different weight. Boxing has instant replay in some jurisdictions and sanctioning bodies; MMA has an appeals route to a commission. Here those mechanisms exist but are opaque, and because they are opaque the gap gets filled with story again.

Rules have versions, and versions must not be assumed. Positions on knees to a grounded opponent, on 12-6 elbows, on when a fighter may stand up from the mat, on same-day versus early weigh-in models — all have changed by state, by federation, by era. Applying today's standard to a 2026 bout manufactures violations that never existed. I have seen entire analyses go wrong solely because the author used current rules to convict a sequence from a decade earlier.

Governance is harder still. When the IOC suspended AIBA, the question was never how to buy more cameras; it was how to restore the standing of the refereeing institution itself. What was lost was not the accuracy of individual scorecards but the verifiability of the whole system. And in sport, an institution that loses verifiability has all of its correct decisions read as wrong ones.

Biological age must outrank the age on a birth certificate. Strikes absorbed, stoppage losses, the number of rushed weight cuts — those predict decline far better than a date of birth, especially in the lighter divisions where speed goes first. A Vietnamese fighter who turns professional at twenty-eight often carries a career far older than his age, because the amateur years accumulate hundreds of rounds with nobody recording the strikes absorbed. That cell is blank, and people read the blank as "no problem yet".

Competitive merit and commercial draw are two different curves, and in a round nobody clearly won, the second curve usually decides. The fighter who fills the arena carries an invisible advantage in tight rounds — not because judges cheat, but because the human brain remembers a combination thrown toward the loud stand more vividly than one thrown toward a wall. That is structural bias rather than moral bias, and it is only discovered when somebody sits down and counts.

There was a time I received a pre-fight statistical sheet with most of its columns empty. Every column said "insufficient information". I nearly read those blanks as "no risk" and wrote a clean, tidy, harmless preview. That is the most dangerous error an analyst can make, and it is the error audiences make every week: if no slow-motion replay proves a foul, conclude there was no foul.

Trust in referees does not rise when cameras are added. It only relocates suspicion. A decade ago people doubted the judge's eye. Now, with twelve angles available and still a controversial result, they doubt the screen itself — believing the angle was chosen, the frame was cropped, the timing of release was calculated. More data does not automatically create trust. It makes suspicion more sophisticated, and sometimes produces something worse: false precision. A 30-27 scorecard looks scientific, yet it can be three 10-9 rounds each settled by a single touch.

That semi-final night, I betrayed my own belief to embrace the heart. I had rewatched the footage, saw only a light contact, and wrote that there was not enough evidence for a penalty. Twenty minutes later hundreds of comments came down. Five thousand members, one old screen, and trust split into five thousand pieces. I panicked and amended it to "possibly a penalty". When the governing body confirmed the original decision was correct, I collected the taunt I still remember: "Thought you had a VAR eye, turns out you have a trending eye."

The lesson was not whether I read it right. It was that I had given readers no way to audit how I read it. A conclusion without reasons is just an opinion, and opinions always lose to crowd pressure. From then on I split my writing into two parts: the rules section, grounded in the statutes, and the fan-reception section, recording social reaction. The two are never mixed, and neither is edited under pressure.

The referee blows the whistle, but the fans are the ones who score last.

The improvement I expect over the next few seasons is not more cameras. It is three small, cheap things: publishing the reasoning behind each scorecard rather than only the totals; clearly separating an accusation from a panel's ruling; and allowing "insufficient data" to be written where there genuinely is not enough data. The third is hardest, because it forces people with authority to admit they did not see. A mature combat sports culture is not measured by how many cameras hang in the arena, but by whether a judge dares to tell five thousand spectators that he had no basis to score that round. How many of us would dare say it?