Data drought in Vietnamese sports: When analysts have nothing to analyze

At the end of 2026, I received a sports analysis report with a very scientific structure. The report broke its evaluation down into nine criteria groups, from technical to industry impact. Yet after phase one, the entire scoreboard was empty. The final note simply said: "Insufficient information to analyze." For someone used to hunting for oddities in data, this is a worrying signal. It does not come from poor algorithms or weak models, but from a lack of raw material. Like a surgery without a medical record or a flight without a map. In this context, any deep analysis, no matter how good, becomes little more than subjective advice. Take swimming for example. If I wanted to assess swimmer Nguyen Huy Hoang in the 1500m freestyle, I would immediately need speed splits every 50m, stroke rate, lactate variation, water conditions, head-to-head history, and training context. But most of that data does not exist in any national database. If it does, it is locked in club-level Excel files, unstandardized and unshared. This creates a paradox: we understand European leagues better than our own national sports. A single Premier League match can produce tens of thousands of tracked events. But a Vietnamese athlete's heroic performance at the SEA Games is often described in only a few newspaper lines. So how can we build performance-prediction models? How can we find the details visible only to data? In 2026, I published the "Binh Duong pressing" concept based on Becamex Binh Duong's average PPDA of 8.4. That number did not appear out of thin air. It came from meticulous tracking of all 26 V-League rounds, with 17 charts and three cross-checked sources. But in swimming, we do not yet have such a data "V-League". We do not even know whether our 1500m swimmers maintain their kick rhythm in the final 100 metres. When I write this, some colleagues tell me Vietnamese sports have always relied on intuition. They say good coaches can spot problems without gadgets. I do not deny the importance of professional instinct. But instinct becomes far more powerful when data offers a way to verify it. Our problem is that intuition has never been embedded in a proper measuring framework. Some people say "just compete and results will come". But I have witnessed swimmers suffer injuries because of prolonged overtraining. If heart-rate variability and daily fatigue scores were tracked, we could detect problems long before they affect a career. This is not a distant dream. Modern sensor technology is now cheaper than a pair of official competition shoes. So what should we do first? I propose building a minimum data framework for national teams. We do not need expensive tracking systems right away. We simply need unified, mandatory data columns across every sports federation: time, distance, heart rate, perceived exertion, and competition conditions. These columns should be updated to an open database so analysts, coaches and journalists can share the same source of truth. In football, we learned that pressure can come from a single number. When a team presses with a low PPDA, they create a fear that opponents cannot see. "There is an invisible pressure that every team fears. I named it Binh Duong pressing." What if a swimmer could create similar pressure? That pressure comes from stroke tempo, steady breathing, and a late-race surge. But none of it matters if no one records those metrics. The story of that empty report is not a shock. It is a wake-up call for the entire sports ecosystem. We boast about fighting spirit, but spirit cannot replace data. An athlete aiming for a national record needs to have every stroke analyzed. A coach adjusting training load needs to see change in numbers week by week. Of course, data is only a tool. I used to treat models as holy scripture; now they are just a compass. But without a compass, we get lost at sea. No sports director can make a long-term strategy without knowing where each athlete sits on the development curve. No scout can uncover a gem if every expectation is based purely on old habits. Vietnamese swimming is standing at the door of a golden decade if it learns to collect and exploit data. But that starts today: every practice session must be recorded. Every competition must have a technical report. Every athlete must have a unique ID. Building this path is slow and unglamorous, but it is sustainable. While the world's top sports systems run on artificial intelligence, Vietnam is still figuring out how to store numbers. Yet this gap is not impossible to close. With current sensor costs, a small investment could create an initial data layer. What is missing is determination from federations, clubs, and the Ministry of Culture, Sports and Tourism. If we do not start, reports like "insufficient information" will keep appearing. And then we will continue to watch sports in slow motion, never seeing the whole picture. I do not ask who will win the next SEA Games. I ask: which team will become the first to publicize its training database? The true winner of this decade will be the organization that turns data into a national asset.