Three Disciplines, One Word: The Break Trap in Vietnamese Billiards Data

In September 2026, at a pool hall on Lach Tray Street in Hai Phong, I sat rewatching the final of the world three-cushion carom championship held in Binh Thuan. It was an all-Vietnamese final. The screen replayed long innings, and the crowd clapped every time the ball touched three cushions before finding the target. Then a man beside me pointed at the statistics board and said: “This guy breaks really well.”

I asked him: what is a break?

He went quiet for a moment, then said: “It’s the scoring shot, isn’t it.”

There is no break shot in three-cushion carom. What he meant was a run — a sequence of consecutive points within a single inning. But the word “break” sounds more familiar, so it gets used instead. That was the moment I realised: the problem with Vietnamese billiards data starts with vocabulary.

Vietnamese billiards is in transition. Three-cushion carom remains the flagship discipline, with names like Tran Quyet Chien and Bao Phuong Vinh lifting Vietnam into the world’s leading group. Alongside it, snooker and pool are expanding fast, pulling in a large volume of analysis, statistics tables and prediction pieces.

Most of the data Vietnamese media uses is imported from international systems written in English, then translated mechanically. The word “break” crosses a language border and loses its context. Nobody does this on purpose. It is simply that when three different sports share one word, a statistics table will lie in three different ways.

Data never lies, but I have misheard it before.

In snooker, a break is a player’s consecutive scoring sequence within one visit to the table. A snooker table is roughly 12 feet long, with 22 balls: 15 reds, six colours and the cue ball. A century break means scoring 100 points or more in a single visit without losing the table. The maximum is 147, requiring all 15 reds paired with the black, then clearing the six colours in order. Ronnie O’Sullivan holds the record with 15 competitive maximums.

In pool — nine-ball, ten-ball or American eight-ball — the break is the opening shot. A break-and-run means breaking and then clearing the entire rack in that same visit. A dry break is a break that pots nothing. Joshua Filler, the German player and former world nine-ball champion, is the archetype of a player whose break-and-run rate becomes a tactical weapon. Here the rate is calculated per rack, not per visit.

In three-cushion carom there are no pockets, only three balls rolling on a pocketless table. There is no break, only the opening shot of a match. A consecutive scoring sequence is called a run, measured in points within one inning. The discipline’s standard metric is the moyenne — average points per inning. A world-class player typically holds a moyenne around 1.5 to 2.0 points per inning, and runs of 10 to 15 points are worth talking about.

Three different units of measurement are being collapsed into one column.

In snooker, the denominator is visits to the table. In pool, the denominator is racks. In carom, the denominator is innings but the numerator contains no break at all. When a Vietnamese article writes “this player has a 45% break rate”, the reader has no way of knowing 45% of what. A pool player who breaks and clears the rack might hit 45%. A snooker player with 45% of visits reaching 50 points or more is also plausible. Two equal percentages, two entirely different meanings.

There is another variable rarely mentioned: pocket size. Chinese eight-ball tables use snooker-style cut pockets, often around 85 mm, while American pool tables commonly sit between 110 and 120 mm. The same shot with the same power can differ in pot rate by more than ten percentage points. Placing two “pot success” figures side by side without stating the table type is a technically meaningless comparison.

Ranking systems are separate too. Snooker has its own points system run by its professional body. Three-cushion carom has the world federation’s system. Pool has several parallel systems, and a player can top one list while never appearing on another. A combined “top 10 Vietnamese billiards players” ranking that merges all three groups is a media product, not a data product.

My instinct when I spot this kind of error is to collect more data. I did exactly that once, and I was wrong.

In 2026 I built a comparison table of snooker and pool player performance, using a single column called “break efficiency” and merging data from two different sources. The table produced beautiful output, and I almost wrote a piece based on it. Fortunately I stopped to read the original metric definitions. The two sources used two different definitions. That entire beautiful table was just the addition of two things that do not share a unit.

The lesson was not that more data was needed. Adding data to a wrong set of labels only makes things more wrong, because it creates a feeling of certainty. What is needed is time spent reading the definitions before calculating.

This is also why I no longer trust articles that open with a single metric and no source note. I do not write to convince anyone. I write so that the data has a witness.

Next time you read a billiards article with numbers attached, try three questions. Which discipline. What is the denominator. What kind of table. If the article answers all three, you are reading analysis. If not, you are reading a decorated scoreboard.

Three thousand matches taught me that one match can teach more than all of them — but only when I know which sport I am watching.