Vietnamese Three-Cushion Billiards Shaken in Can Tho: The Day the 30/40-Point Format Flipped the Table

On October 8, I sat in front of a screen watching the qualifying round of a billiards championship. Tran Quyet Chien led Truong Be Nam 19-13. In a match played to 30 points, a six-point cushion against a player outside Vietnam's top tier is an almost safe buffer. I wrote in my notebook: "hard to overturn." Thirty minutes later, the scoreboard read 30-28 in favor of Truong Be Nam.

I was wrong. And that error did not come from underestimating Truong Be Nam. It came from a variable outside the player's hands: the match format.

That same day, Tran Thanh Luc led Vo Minh Duy 37-29 and lost 40-37. Chiem Hong Thai lost to Nguyen Ngoc Tri 16-40. Bao Phuong Vinh lost to Thoi Hoang Huan 39-40, a margin of exactly one point. Four names regarded as pillars of Vietnamese three-cushion billiards fell in succession, most of them while holding the advantage.

I have followed Vietnamese three-cushion for many years. Experience has taught me one thing: when many strong players fall on the same day, the question worth asking lies elsewhere — what in the tournament structure opened the door for this to happen.

A domestic tournament, a short format

The 2026 National Billiards and Snooker Club Championship ran from October 1 to 10 in Can Tho. This was the first time the Mekong Delta city hosted the event. The discipline in question is carom billiards, specifically three-cushion — the discipline Vietnam is strongest in and where it is most popular.

It must be stated from the outset: although the tournament name contains the word "snooker," the discipline contested here is carom three-cushion. In Vietnam, when people say "billiards," they almost always mean carom. Snooker concepts such as the century break or the break shot do not apply here; they are replaced by the native vocabulary of carom: the series, the average, the finish, and position play.

The scale is notable: 451 athletes from 13 provinces and cities. Total prize value was around 300 million dong, roughly 12,000 US dollars. That figure is low compared with international carom events, but not low for a domestic tournament that carries a ranking and athlete-classification function.

The crux lies in the format. The qualifying round was played to 30 points; the knockout rounds were played to 40 points. This is a point-capped format, not a time-capped one. Some players had to play up to four matches in a single day. On October 9, the schedule compressed: quarterfinals at 8:30, semifinals at 11:45, final at 13:45.

For me, these numbers matter more than any opinion about form. They shape the entire story of October 8.

Truong Be Nam's run and the limits of a 30-point race

In his match against Tran Quyet Chien, Truong Be Nam produced a 10-point run and a 5-point run. In domestic three-cushion, a 10-run in a single inning is a high standard. This matters more than the final score.

Consider the arithmetic. In a 30-point match, if your opponent produces a 10-run, you have lost a third of the distance in a single inning. You cannot respond point by point; you must produce a comparable run to compensate. In a 40-point format, a 10-run accounts for a quarter of the distance — still fearsome, but with more room to breathe.

A point-capped format compresses the technical gap between a top seed and a mid-tier opponent. When a match ends at 30 points, a single large run is enough to flip the situation. Tran Quyet Chien led 19-13, more than six points ahead. Truong Be Nam only needed a 7- or 8-point run to level the contest. And he had a 10-run.

I have been wrong before because of a single number standing alone. In 2026, I applied an expected-goals metric to a Vietnamese football match, confidently predicting the stronger side would win, only for the opposing goalkeeper to make seven saves and wreck the entire model. Since then I have learned to place every number within a time series and within a specific match situation. Data never lies, but I have misheard it before. In Can Tho this time, I nearly misheard it again: I read the 19-13 score and forgot the format standing behind it.

Tran Thanh Luc: an eight-point lead lost in a 40-point race

Tran Thanh Luc led Vo Minh Duy 37-29 in a match to 40. He needed three more points; his opponent needed eleven. On a probability basis, the door was wide open. The final result: 40-37 for Vo Minh Duy.

I do not have the average or inning-count data for this match, so I cannot say precisely how many points Vo Minh Duy ran to overturn it. But I know one thing: to go from 29 to 40 while your opponent needs only three points, you must score almost continuously across many innings while holding your opponent to nearly nothing. That is a performance at the peak of temporary form — the phenomenon the billiards world calls "playing out of one's mind."

This is where I want to pause. "Playing out of one's mind" sounds like an emotional turn of phrase, but in three-cushion it is a real tactical signal. When a player enters a run, the table becomes "easier to read" for him; he controls the cue ball more precisely, places it into more favorable zones, and each successful shot feeds confidence into the next. The effect is strongly autocorrelated: one successful run raises the probability of success in the next. Momentum in three-cushion is not vague psychology; it is a technical variable.

And this is what I took from that day: Tran Quyet Chien and Tran Thanh Luc did not lose because they played markedly worse. They lost because their opponents, for a short window, reached a state no one could guard against with ordinary technique.

Bao Phuong Vinh and the lesson of a single point

Bao Phuong Vinh lost 39-40. In a 40-point match, losing by exactly one point falls within statistical noise. I do not read this result as a form signal.

One point out of forty is a difference any player can encounter on an ordinary day. Had this been the day's only match, I would not even include it in the analysis. But when it appears alongside two losses from a lead, it becomes a piece of a larger picture: a day on which the top players could not close out their matches.

This is where I have to be careful with myself. I am prone to gathering every result into a tidy "trend" for the sake of a good narrative. But a one-point loss and a loss from an eight-point lead are two different phenomena in nature. The first is noise. The second is a signal. Blending them together produces a conclusion that is elegant but false.

Chiem Hong Thai: a defeat that cannot be blamed on the format

Chiem Hong Thai lost 16-40. This is the heaviest defeat of the group. With this score, I cannot attribute it to the format.

When you score only 16 while your opponent reaches 40, the gap lies in shot quality, not in match structure. If a 40-point format created a disadvantage, it would disadvantage both sides equally. Here, one side scored 40 and the other scored 16. No format explains that gap.

I raise this case because it reminds me that not every defeat on the day shared the same cause. There were four major results, and they fall into at least three categories: an overturn from behind (Truong Be Nam won), a collapse from a large lead (Tran Thanh Luc lost), and an overwhelming defeat (Chiem Hong Thai lost).

Four matches a day and the stamina variable

One detail I consider important but easily overlooked: some players had to play up to four matches in a single day.

In three-cushion, stamina is not a secondary factor. A precise shot demands stability of the wrist, of posture, and above all of concentration in the seconds before the stroke. When you enter your third or fourth match of the day, that concentration begins to erode. The delicate position shots — the very key to opening a run — become harder.

Combine the stamina variable with the 30/40-point format and you have a near-perfect formula for surprise. A tired player, facing a fresher opponent, in a match where a single large run can decide the outcome — those are ideal conditions for a top seed to fall.

I once analyzed a similar phenomenon in football, when the matches of the summer of 2026 were played without spectators. Back then I learned that seemingly small variables — the absence of a crowd, or here the number of matches per day — can collapse coefficients I had long trusted as stable. When home is no longer a fortress, I learn to listen to the empty stands. In Can Tho, my "empty stands" was matches per day: a variable I had never brought into my domestic billiards tracking model.

Why this is not a changing of the guard

This is the section I want to devote to caution, because the headline of that day makes it very easy to go too far.

The most appealing reading is this: the old generation of stars is finished, and a new crop is rising. That reading has pull, but it rests on a single day of play. One day. Not a season, not a run of tournaments, not even a week.

As someone who does data analysis, I cannot conclude a trend from a single data point. If I did, I would betray the very principle I have pursued for years: distrusting single data. What I can state with certainty is this: the 30/40-point format makes top players more likely to be eliminated in probability terms, and that is a property of the format, not a verdict on class.

In other words, October 8 exposed the tournament's variance; it did not yet prove a shift in power. These are two different things, and the difference matters.

There is another signal I find more trustworthy: the depth of Vietnamese billiards. Four hundred fifty-one athletes from 13 provinces and cities is a figure that says Vietnam's mid-tier is deep enough to cause surprises. As that depth grows, shocks like October 8 will become more frequent. That is a positive signal for the discipline's future, but it does not mean the stars are finished.

I once wrote an article that was mocked. In 2026, I analyzed that Germany would soon exit a major tournament, based on the opponent's pressing-after-pass metric. The piece was laughed at. Two weeks later, Germany were eliminated. I received emails admitting I was right. But the lesson I kept was not "I was right." The lesson was: a conclusion based on one metric, even if right once, can still be wrong the next time. The crowd laughed. The data did not. And the data has not yet given me the right to declare a generational shift from a single day.

The data that is missing, and what it hides

This is the section I always have to write, even when it makes the article less appealing.

What I have: the scorelines. What I do not have: each player's average points, inning counts per match, best run, and number of successful finishes. This is the biggest data gap.

With scorelines alone, I cannot distinguish with certainty between two hypotheses: the opponent played exceptionally well, or the top player underperformed. Both lead to the same score, but they carry entirely different implications for the future. If it is the first hypothesis, this is noise. If it is the second, this is a worrying signal.

I also do not have the draw structure. If the eliminated players were concentrated in the same session or the same half of the draw, the "day of slaughter" effect would be far stronger than if they were scattered across the event. The article does not disclose this.

And I have no age data for the players. Some names in the eliminated group read as veterans, which fits the stamina-disadvantage hypothesis on a four-match day. But that is inference, not fact.

I list these gaps not to dilute the article but to state clearly its limits. An honest analysis must state what it does not know. I do not write to persuade anyone. I write so that the data has a witness. And an honest witness must declare the places where he is blind.

What I will track next

If October 8 is a signal, that signal must be tested in the next round. Specifically, I will track three things.

First, whether the players who caused the surprises — Truong Be Nam, Vo Minh Duy, Nguyen Ngoc Tri, Thoi Hoang Huan — can sustain their form on October 9. If they keep winning, the depth hypothesis is reinforced. If they fall in the very next round, October 8 was most likely just a session of noise.

Second, the outcome of the October 9 final. The champion will indicate whether this tournament truly opened a door for a new crop or merely created a temporary gap for another star to fill.

Third, and perhaps most important to me: whether the organizers will reconsider a schedule of four matches a day. If stamina is part of the cause, this is the only variable that human beings can control.

I have misheard data before. I have predicted wrong before. But I have never stopped taking notes. And sometimes a day like October 8 in Can Tho is how data forces me to rewrite what I thought I understood about domestic three-cushion billiards.