The Empty Scouting File: Discipline of a Vietnamese Youth Table Tennis Observer

The match ended at 16:40 on 12 August. I folded my notebook, walked out of the Hai Phong arena, and on the way home wrote exactly one line into the file: insufficient data to conclude.

The fifteen-year-old boy had won 3-1. The stands applauded. A man sitting beside me said with certainty that the kid would be in the city team within two seasons. I sat through four games, recorded eleven lines on serve toss height, three lines on foot position after the backhand, and one question I could not answer: how does he handle being down 8-10 in the fourth game?

Four games that day did not answer it. He won the fourth 11-6, and no situation came close to 9-9. So I left the field blank.

The next morning the head coach called me into his office. He opened the file, looked at the empty information column, and asked the question I have heard for eleven years in this trade: "If you write this, who do I submit it to?"

I had no good answer. I had one sheet of paper on which nine major dimensions were all marked "insufficient data", and one note at the bottom: need two more matches, prioritise close scorelines.

That night I sat with the blank sheet longer than with any report I had ever written. The hardest part of observation is not finding data. It is staying honest when the data does not exist.

Vietnamese youth table tennis runs on short decision chains: select or do not select, bring a player into the centre or send them back to the province, fund one more year or stop. Each of those decisions usually rests on a two-to-five page report written by one person in the stands in about forty-five minutes.

Few people do that job. At most youth centres there is one person, maybe two, splitting time between training plans and tournament trips. They are in the hall from seven in the morning, watch six to eight matches a day, take notes in ballpoint, and by the end of the week must file a summary complete enough for management to sign off next season's budget.

That schedule produces a very specific pressure: the file has to look full. A report with all nine dimensions filled, one or two sentences each, feels far more trustworthy than a report with three dimensions filled and six blank. The person signing off was not in the stands. The person signing off only sees the paper.

The sport also carries a difficulty of its own. In July 2026 the International Table Tennis Federation moved to the 40mm+ plastic ball, replacing the 40mm celluloid ball used before. The new ball spins less, travels slower, and pushes rallies toward long exchanges of counter-hitting. Earlier, in 2026, the scoring system changed to eleven points, shortening each game and making every point heavier. Together, those two changes invalidated most of the benchmark tables many centres still use to assess trainees: average rally length per point, forehand win rate at three metres, recovery time after the backhand.

An observer writing a report today while still comparing against a benchmark table from fifteen years ago is comparing a player to a different sport.

Before analysing anything about a player, I check what I actually have in hand. That is the step almost nobody takes, because it produces no conclusion to show off.

My input audit is made of very ordinary lines: tournament name, match date, opponent, ball type, hall lighting, number of games observed, whether video exists. Each line is marked present or missing. If the core is blank, every conclusion downstream inherits the defect, even when those conclusions are written neatly.

The August file was one of those cases. I had the tournament name, the date, the opponent. The detail section was empty. No video, no point-by-point data, and no match in which the boy faced a critical point.

The framework I use has nine dimensions: technique and equipment; player data and head-to-head history; tournament structure and ranking points; comparative standing against the regional field; rules and governance; coaching staff and the talent pipeline; risk surface; public narrative and expectation; and finally how decisions made above travel down to the practice table. Those nine are never full at once. For a fifteen-year-old at a provincial youth event, usually only the first three carry real data.

When the input is down to a fragment, I run what I call a degraded-profile analysis: dimensions with data are analysed to full depth, empty dimensions are marked "insufficient data", and every conclusion carries a tag for its evidentiary base. There are two tags. The first is source-based, meaning I saw it, measured it, recorded it, and can show it to someone else. The second is inference, meaning I believe it from experience but hold no evidence. Separating those two tags is the entire value of the report. Blending them is the fastest way to turn a scouting file into a rumour with a stamp on it.

What can an observer actually measure in forty-five minutes? More than most people think, provided they look in the right places.

The serve yields three pieces of information in a second and a half. Toss height, from sixteen centimetres among beginners to over thirty among those with a foundation. Contact point, in front of the belly or level with the hip. And the first bounce on the server's own half. Good players vary spin. Very good players vary bounce placement and rhythm together, so the receiver cannot read the ball in time.

The racket face reveals the structure of the stroke. Where contact lands on the rubber, centre or toward the top edge. Players who strike toward the top edge usually play by feel rather than structure, and feel fluctuates day to day.

Grip pressure reads through the colour of the knuckles and the grooves on the handle. Gripping too tight kills wrist elasticity; the symptom is a backhand that always lands short, dropping into the middle of the table instead of the end line.

Footwork gives away the most. Shuffle step or cross step. Time from the end of the stroke back to neutral position. Among Vietnamese youth players, this is the widest gap between seeded and unseeded entrants, and also the least recorded.

The backhand shows who is driving the movement. Elbow-led is stable and holds up under pressure. Wrist-led is deceptive but breaks when an opponent raises the tempo for three straight rallies.

Receiving serve is measured by when the decision is made. Some decide while the ball is still at the top of its arc; others wait until it bounces on their side. The second group loses roughly three tenths of a second. At a higher level, three tenths of a second is a whole game.

The between-point rhythm lasts about twelve seconds. How a player wipes sweat, how they look at the racket, how they walk around the table. At 9-9, that rhythm either changes or holds. It is the only psychological data I can record objectively without a questionnaire.

Equipment tells a story too, but it has to be the right story. A blade weighing eighty-five to ninety-two grams is the common range at this age. A boy using a forehand rubber worn down over six months is information about circumstances, not about technique. An observer has a duty to separate the two before writing a single sentence.

Based on my experience tracking matches at national youth events over the past four seasons, one rather sad pattern stands out: most scouting reports are finished within twenty minutes of the final point, while memory is hot and emotion is high. A file written in that state is almost always full. And almost always wrong in exactly the dimensions that matter most.

One principle I hold tightly: one file, one subject. If a single match gives me material on technique, on a trainee's family situation, on a coach about to transfer, and on a cut budget line, I split it into four files. Combined, the reader confuses one layer with another, and the final decision rests on a mess that looks coherent.

When a file comes back empty, I check three possibilities in order of probability.

The first and most common: the observer was not there at the right time. The boy played his best match the previous morning; I arrived in the afternoon, when his place in the next round was already secure and he was coasting. What I recorded was a different player from the real one.

The second: the data pipeline broke. Video failed, the memory card filled, or the organisers never published point-by-point scores. With nothing to rewatch, every conclusion is memory, and memory edits itself according to mood.

The third, less common: the template does not match reality. The form asks questions the match cannot answer. It demands an assessment of composure at the decisive point, in a match that had no decisive point. The fault lies in the template, not the player.

The fix is always the same: return to the source. Watch more matches, request the footage, or name the specific subject and accept that the file will carry three dimensions instead of nine.

In 2026, as a first-year movement science student, I interned at a football academy and wrote a twelve-page report on a fourteen-year-old midfielder named Nguyen Quoc Viet. That report had no goals to boast about. It had one thing: the number of off-ball movements he made to open space for teammates, fourteen per match on average. The coaching staff ignored it the first time. I resubmitted with a minute-by-minute count. They started watching him.

The lesson I carried from there into table tennis is simple: I do not go looking for stars – I go looking for how someone lit that star. A serve repeated a thousand times in an empty training hall explains why a player wins deep in a draw, far more than the prettiest stroke that makes television.

The deepest layer of soil usually tells the truest story, but few people are willing to go down there with me. Going down means sitting two extra hours in a hall to watch a match nobody cheers for, just to test whether yesterday's conclusion still stands.

A youth academy does not manufacture players – it keeps the unfinished manuscripts of a generation. An observer working at that layer has no right to write in the missing pages and sign their own name.

What bothers me most about this profession is its reward structure.

Whoever fills all nine dimensions is praised as professional. Whoever leaves six blank gets questioned, sometimes reprimanded. In a system where the report is the condition for releasing funds, surface completeness outranks accuracy. Report writers learn very quickly that inserting a plausible figure into an empty box is cheaper than sitting down to explain why the box is empty.

In 2026, working as an analysis assistant at a First Division club, I proposed signing a seventeen-year-old named Nguyen Van Truong with a twenty-page analysis, forty minutes of video and comparison charts against midfielders of his age group. The board chose a foreign player for commercial reasons. I was criticised for focusing too much on data and not understanding the market.

I accepted the criticism in silence and asked to keep tracking the boy for another season. Six months later he scored eleven goals in the Second Division. The foreign signing scored four and was injured repeatedly. Nobody raised the matter again. From then on I had my own budget for the academy observation process.

The lesson is not that I was right. The lesson is that an honest file can be sent back twice, but it never collapses on its own.

Those who defend completeness usually make one valid point: a totally empty file is useless. True. But a totally empty file almost never exists. What exists is a file with three real dimensions and six invented ones, where the reader cannot tell which is which. That is the real risk, and it does not show up on the page.

Next season I will sit in the third row again, write lines nobody wants to read, and leave blank the boxes with nothing to put in them. The dust covering memory is not there to bury it, but to be dug up at the right moment.

What I want to know is this: which Vietnamese training centre will be the first to publish an empty column in its scouting report. When that column appears, observation in this country will have moved to another layer, and fifteen-year-olds will be judged on what they can actually do rather than on what adults need them to look like.