Nine Analytical Dimensions, Not a Single Line of Data: Lessons From a Youth Table Tennis Scouting Report

A four-page report sat on my desk in Hai Phong on an August morning. Nine sections. Nine tables. There were assessment columns, a risk-level cell, even a glossary of technical terms at the bottom. I read it top to bottom, then bottom to top, and in every cell where a player's name, a point-win rate on serve, or a line about international matches should have been, the same phrase appeared: insufficient information.

Only one line carried a real score. It sat in the risk section, and it described the risk to the integrity of the analysis itself, rated High. The author had refused to pretend. They wrote plainly that an empty input means an empty output, and that the correct next step is to re-run the extraction stage before issuing any professional judgement.

Thirty-six years in this industry, and I had never seen a scouting document grade itself with the words "I don't know". Vietnamese youth table tennis produces a great many reports. Very few of them dare to stay blank.

Documents like this are born from a very specific pressure. Every training camp, every dossier prepared for the federation, every squad selection for an U15 or U17 cohort demands an assessment with a beginning and an end. A coach responsible for forty children across two weeks cannot sit down and hand-write forty reports. So the template appears. Templates keep the work moving, and they are also the easiest thing in the world to fill in.

At the national youth championship, the most valuable thing a scout can bring home is not the match score sheet but thirty seconds of notes on how a kid behaves after conceding a point. Notes, unfortunately, do not fit neatly into a spreadsheet cell.

International data on these children is thinner still. Sending a fifteen-year-old abroad for a few events is a cost most programmes cannot absorb, so the foreign-match win rate, the core metric for judging real ability, often rests on a sample of three or four. Meanwhile the WTT ranking system rolls on a 52-week window: old points expire, positions swing, and a ranking you read today may be wrong next month.

And when the data is missing, people fill the gap. With templates. With the phrase "has potential". With a line reading "needs further monitoring" that nobody ever defines.

The first thing that empty report got right was to redefine the smallest unit of this trade: the information point. An information point is a discrete, citable event with a date and a source. No information point, no conclusion. That simple, and that hard.

In 2026, sitting in the club's video room, what I had on a sixteen-year-old forward named Pham Minh Hoang was eleven goals and seven assists in eighteen matches at the national U17 tournament. That is an information point. What I went looking for myself was his off-ball movement path, and it produced an efficiency figure of 93 per cent of situations. That is the second information point. Six months later the boy came on and scored in the 74th minute. None of those three points could have been replaced by a compliment.

What does a decent table tennis dossier actually need? Point-win rate on your own service sequence. Error rate on receive, broken down by spin type. Conversion across the first three shots. Win rate in the fifth and seventh games, when the legs are heavy. The date of the last blade change and the date of the last rubber change. For a young player, one more column: where does he stand in the two seconds after losing a point.

That last column almost never appears. People measure the stroke; few measure the silence after the stroke. The gem is not on the video. It sits in how the kid stands after losing the ball.

On equipment timing: after a blade change or a switch to a different rubber line, feel and consistency typically fluctuate for three to six months. A report that records "form has declined" without recording the rubber change date is useless, and worse than useless, because it turns a normal adaptation period into a verdict on ability.

Read closely, that empty report also left three diagnostic traces. A blank title. A blank source. And an "entities involved" field containing an instruction on how to find the entities instead of a list of names. When a document teaches you how to locate data rather than presenting it, the pipeline died at ingestion. The writer was not incompetent; there was simply nothing to write.

That is why I kept the report. An honest report must have the right to say "I don't know", and our youth development system is stripping that right away with beautiful templates. A template with nine sections will always create pressure to fill all nine, even when the seventh has no basis at all.

I set myself a three-observation rule and have kept it all these years: see the kid play a good match, see him train, and see him in a defeat. Without the third, the pen stays down. The rule is slow. It cost me a few deals, including one worth two million dollars that I have told many times and do not intend to tell again here.

In 2026 I learned that data does not replace the naked eye; it hands the naked eye a map. A map does not replace the journey. But a blank map is no reason to walk without looking either.

What bothers me most about this trade is not the shortage of numbers. It is the habit of praising volume. A nine-page dossier is treated as serious work. A one-page dossier with two blank lines and one line reading "needs three more matches" is treated as laziness. The opposite is closer to the truth. Technically speaking, that empty report is the most honest scouting document I received all year.

The sports data industry keeps telling us that more metrics is better. My experience runs the other way. What Vietnamese youth table tennis lacks is not numbers but source tiering: who said it, when they said it, on what basis. A metric without source tiering is just a rumour set in a nice typeface.

Alongside that sits the discipline of silence. Silence does not sell reports. Silence does not get anyone promoted. But silence is the only honest output when the data intake has failed. A club that signs a fifteen-year-old on a fabricated dossier will pay for years, and that price rarely appears on the books of the person who wrote the dossier.

People call me a gold digger, when in truth I am only someone patiently listening to the ground. And the ground sometimes goes quiet. Not because the gold is gone, but because my spade has not yet touched the right spot.

Next time a dossier on a fourteen-year-old lands in front of you with all nine sections complete and not one empty cell, ask the person who handed it over: which cell here is the thing you do not know? If they cannot point to one, you are holding a handsome piece of paper rather than an assessment.