The Silence Between Two Wall Touches: When Vietnamese Swimming Lacks Data

At 5:40 in the morning I reopened the analysis file I had been marking up for four days. Nine sections. Forty-two lines. Every one of them sat inside the same repeating status cell: insufficient information to assess. No split times. No start and underwater data. No turn metrics. No seasonal ranking table to cross-check against. I stared at that blank grid longer than I needed to, and I heard the thing I always hear: water. Not the water of a final with ten thousand people shouting somebody's name. The water of a pool with the lights still off, one swimmer moving through it, and a stopwatch nobody is pressing.

An empty pool with no spectators, where the water itself cries in verse.

People in the trade call that a data gap. I call it a silence. And I have spent most of my career putting my ear right into the middle of it.

In May 2026 the competitions stopped because of the pandemic. I rode a motorbike forty kilometres to Hoa Xuan stadium in Da Nang just to record the sound of a friendly between local clubs, where exactly twelve people showed up. The piece I wrote was titled "A Million Empty Seats and the Breathing of a Centre-Back," and it was shared more than five thousand times overnight. That is when I learned the principle that has shaped my work since: a void can carry a story, if the writer is patient enough to sit inside it.

The file I opened at 5:40 that morning was a different case. It was not empty because the pool was deserted. It was empty because nobody wrote down what happened inside the water.

Seven Metric Groups and Forty-Two Blank Cells

A proper analysis of a professional lane is normally split into seven groups, each answering a different question, and all seven begin with the same material: decomposed time. You need to know how long the athlete took over the first fifteen metres, at which metre they surfaced, how many dolphin kicks they held underwater, when they touched the wall, and how much the final fifty metres dropped off against the opening fifty.

Without that set of figures, an analyst has two options: write smooth-sounding description that measures nothing, or return a single word — not yet assessable.

What matters is that this emptiness does not come from people. It comes from three layers of silence stacked on one another, and it took me years to see all three clearly.

The first layer is equipment. Electronic timing at most grassroots and semi-professional meets in Vietnam returns a finish time and a handful of touchpad points at split distances. Measuring a fifteen-metre or twenty-five-metre split requires cameras and dedicated software that even many national championships in the region do not fully install.

The second layer is storage. Results from a junior meet often exist as a printed sheet or a photo file sitting in a coach's phone rather than in any searchable database. A fifteen-year-old can swim beautifully at a local meet, and three years later nobody can retrieve the numbers from that day.

The third layer is language. Swimming coverage is written mostly in medals. Who took gold, who broke a record, which team leads the table. Questions like "why was the last fifty slower" or "how stable has the form actually been" are rarely asked, so they are rarely recorded.

What the Blank Grid Tells a Writer

Nguyen Thi Anh Vien, from Can Tho, competed at two Olympic Games. Nguyen Huy Hoang, from Quang Binh, won silver in the 800m freestyle and bronze in the 1500m freestyle at the 2026 Asian Games in Jakarta. Those are two names big enough that any news feed remembers them. But try to find their split times from any domestic meet a few seasons back, and you will understand how an analysis file can end up with forty-two blank cells.

This is the point I want to state plainly, because it sits at the core of how I read this sport. A metric without context is a polite lie. A figure standing alone is not wrong, but it always lies by staying silent about everything else.

I spent years writing about sports with thick data, and I keep returning to an old example. In football, possession was once treated as the measure of dominance, until people realised some teams hold sixty percent of the ball through meaningless sideways passes in midfield. Swimming has the same trap under a different name. Stroke rate tells you nothing if you do not know the distance covered per stroke. A finish time tells you nothing if you do not know whether the athlete sped up or faded at the end. And a personal best set in a 25-metre short course pool cannot be compared directly with a long course 50-metre performance, because more turns mean more push-offs gliding through the water, while a longer stretch between wall touches means the balance of energy is stretched further.

So when seven technical metric groups — from stroke efficiency to venue adaptability — all return not yet assessable, that is not the analyst failing. That is an information infrastructure crying out.

The Reverse Angle: A Blank Grid Is the Most Honest Answer

There is a very occupational pressure that anyone doing sports analysis runs into: you have to produce something. A piece is due, a page needs filling, a headline needs publishing. And the fastest way to fill a blank grid is to pump in metrics that sound impressive and measure nothing.

I have seen index tables drawn up purely to look full. A mental stability coefficient calculated by feeling. A breakthrough potential index calculated by expectation. A whole season where every athlete scores seven out of ten, nobody ahead of anybody, because scoring that way makes you unarguable.

The industry calls that analysis. I think we should call it by its real name.

A blank grid that admits it is blank, on the other hand, is the most honest thing an analyst can hand a reader. It says: until there is split data, every conclusion about this athlete's technique is a guess. And a guess, presented as a guess, still has value. A guess presented as data is a deception.

There is one more layer few people mention. The sports rights market has hit its ceiling, and streaming platforms are repeating the mistakes of old television by paying enormous sums for pictures while never buying the data that travels with them. Platforms pay to broadcast the image but do not pay to store the information. The result is more beautiful frames and fewer figures you can look up. More cameras, less memory.

Based on my experience following races across many seasons, the real tactical signal is not the finish time on the scoreboard. It sits in the stretch everyone watches and nobody records: the last ten metres. When a swimmer starts to drift, elbows dropping, stroke length shortening across two consecutive cycles, that is information. But it only exists in the eyes of whoever is sitting beside the pool, and it disappears the moment the race ends, unless somebody bothers to write it down.

The Timekeeper and the Keeper of the Sheet

At any race, the person named most often is whoever touches the wall first. The person named least is the official standing at the end of the lane raising a hand to confirm a legal swim, and the person at the results desk printing the sheet that may later become the only surviving record of an entire competition.

I still make a habit of asking those people a few questions. How many swimmers were disqualified for a turn fault? Did anyone drift across lanes? Did anyone have to stop mid-race with cramp? None of that reaches the standings table, yet it explains a great deal about what actually happened under the surface.

People say a wall touch is just a data point. I say it is the manifesto of the forgotten.

Closing

That analysis file with forty-two blank cells will not be submitted. I will keep it as a reminder: there are regions of Vietnamese sport we can only tell through story, because we have not yet been willing to invest in telling them through data.

Mistakes made me read the world again with a slower breath.

There were no spectators, yet the water still beat like a global heart. And if one day someone installs an extra camera at the fifteenth metre of every lane, then writing about Vietnamese swimming will no longer have to begin with a silence. Until then, I will sit here, listen to the water, and write down what I hear — even when the only thing I hear is the quiet.