The Empty Dossier: What Vietnamese Athletics Is Missing Before Every Season

In early May 2026, a national athletics coach sent me a forty-page file on a twenty-two-year-old athlete about to enter the SEA Games season. I read it from the first page to the last, then called back with a single question: "Where is the series of training data for this kid over the past two years?" The other end of the line went quiet. The file had photos, monthly body weights, notes from three generations of coaches, and even praise from a senior official. It did not contain a single time series on running volume, stride frequency, or ground contact force. The file was full of words and empty of numbers. Sitting before those pages, I remembered the cold feeling down my spine on an afternoon thirteen years ago, when my conclusion was turned into a laughingstock on online forums. Today I am not laughing at anyone. Every injury is a verdict, and I am merely the one who reads the verdict with my own feet. To read a verdict, there must first be words. Injury does not read the administrative part of a file; it reads only the numbers. This file is not an isolated case. Across seven years of reading injury files for training centres, I have seen a pattern so repetitive it becomes boring: the files of Vietnamese track and field athletes are usually thick on paperwork and thin on biomechanics. They contain enough to make an inspection team nod, but they lack exactly the data anyone wanting to forecast risk needs: a performance curve over time. In major athletics nations, an athlete's file is a living table of numbers. People record every run, every distance, every approach step, every endurance index, every season, every injury, because only a long series over time can separate real progress from a lucky day. A single run 0.3 seconds faster than a personal best says nothing. Eighteen months of steady improvement at 0.05 seconds per month says a great deal about both the physical foundation and the accumulated risk. In Vietnam, that data sits scattered in coaches' notebooks, in spreadsheets no one consolidates, and most of it disappears when an athlete changes squads or changes the person leading them. Every time a result rises, the experts cheer the final number. We celebrate the figure that appears on the electronic board, then forget the more important question: what series wrote that number, and is that series healthy? Based on my experience following the matches and the major games of recent years, I see a paradox: Vietnamese athletics still has bright peaks, but the number of young athletes who stay consistent across two or three consecutive seasons is thin. Part of the answer lies in recurring injuries, and most recurring injuries lie in the fact that we lack the data to detect them before they detect us. The injury code is written long in advance; it is just that no one keeps the page it is written on. I imagine a framework of seven shields that any serious athletics file must pass through. When I apply it to the files I have read, I find that almost every shield is empty. The first shield is the ability to read a performance. A 100-metre result must be read alongside the wind. A long jump must be read alongside the venue's altitude and the type of shoe. A throw must be read alongside the implement specifications. Without these, one is comparing two numbers from different frames of reference. Su Bingtian's Asian record of 9.83 seconds at the Tokyo Olympics is a valid number under valid conditions; a 10.1-second run with a tailwind above 2 metres per second is a number that does not belong in an official file. Fans read the electronic board. Analysts read the conditions that wrote the board. Hip rotation never lies, only people deliberately misread it, and the same goes for the conditions recording a result. Within that first shield lies another dark corner I want to stress: the technology dividend. A shoe with a carbon plate can help an athlete run faster without any real improvement in ability. When comparing performances across eras, one must subtract the dividend technology provides, otherwise you deceive yourself with phantom records. This matters especially in distance events, where the dividend of shoes and a fast track can compound over every lap. The second shield is athlete condition, the emptiest part of Vietnamese files. I need three things and usually receive zero. First, a performance curve across multiple seasons, not one beautiful run. Second, current fitness relative to personal baseline, that is, this season's best placed next to a career best. Third, injury history and absence history. Here is a check I keep as a personal principle: if an athlete makes a leap more than roughly three times their own average annual gain, that is a signal to dissect, both in training and in anti-doping terms. The progression curve is the most honest evidence of a body's natural development. When that curve suddenly goes vertical, the number is no longer a joy, it is a question. The third shield is competition structure and the qualification mechanism. Every season offers two parallel paths to a berth: meeting a qualifying standard, or accumulating world ranking points. Most controversy erupts here because no one calculates in advance the physical cost of both paths. An athlete who races for points while also racing to defend form usually pays with an injury at the most important stage. The one-race-decides-everything team-selection model of some athletics nations is a thorny example: even a world champion can miss a berth if that day is a bad one. But the highest price is not paid on that day; it is paid in the preceding weeks, when one inflicts upon oneself a dense competition schedule with no time to recover. One familiar example I always remember when discussing physical cost: at SEA Games, athletes who run multiple events back-to-back over a few days often achieve high results but leave behind hard-to-see accumulated traces. Nguyen Thi Oanh carried two or three events across a single Games more than once; each medal was one time her body paid a debt that no one recorded in the books. Looking at the results table, one sees glory. Looking at the load series, one sees an unpaid debt figure. The fourth shield is the landscape of rivals and national strength. No one can assess an athlete without knowing what the ten people around them are running, what age they are, and which country they come from. Athletics is a sport where each event group has its own power map: speed belongs to one group of nations, endurance to another, the throws to nations with a technical tradition. Ignore that map and every analysis becomes the story of an individual isolated from the world. And there is one more thing I always want to ask the centres: by what standard is the reserve group being read? A champion's performance tells the story of one person. The depth of the group behind tells the story of an athletics system. When a country has only one prominent name in an event, all the pressure falls on those legs, and injury becomes the body's way of refusing to carry the whole system. The fifth shield is rules and anti-doping. Here I want to speak slowly. The absence of doping information is not a clean bill of health. This is the sentence I repeat so often that a colleague gets annoyed: an empty result is not a safe result, it is merely an unfilled blank. In athletics, history shows many Olympic medals reallocated a decade later, when stored samples were retested with new technology. Someone who once finished fourth in a major final may have received a delayed change of fate. Such cases teach that multi-year data is worth more than any declaration, in both the good and the bad sense. The sixth shield is the training and support system. An athlete does not develop in a vacuum. They develop within a collective that has coaches, session plans, and recovery rooms. When the leadership title changes every season, what is lost is not a name, but the continuity of load. A body is injured not because of one intense session, but because twelve months of shifting frames of reference that tendons and bones could not adapt to in time. The seventh shield is the overall risk picture, the part I like most and the part people are laziest about. Risk does not come from one source; it comes from seven sources accumulating. One punctured shield is a small leak. Seven punctured at once is a name crossed off the list on exactly the important day. Now comes the part people least want to hear. The common belief among coaches and fans is: just work hard, just have an iron will, just add one more session and you will break through. I once believed that. Thirteen years ago, after being mocked on forums following a model predicting a ligament injury, I stood on the side of the number and ignored the laughter. The result later confirmed the number, but the lesson I took was on a different side: a correct conclusion without data to nourish it is merely luck speaking in a confident voice. The paradox lies here: the less data there is, the more loudly people speak. When there is no series to verify against, anyone can canonise a young athlete after one beautiful run, and anyone can bury a name after one bad session. The electronic board is wise in that it only prints the result, while the culprit of every injury always lies in the time before that moment. I do not prophesy; I simply read the code the body already wrote. To read that code, it must have been preserved long in advance. There is a contrarian way of thinking I propose the centres consider. Instead of pouring money into one expensive medical test close to competition day, pour effort into weekly record-keeping. A simple data table recording load, running volume, perceived pain, sleep, and the order of sessions, filled in steadily for two years, is worth more than any rushed consultation. Injury is the only thing on the running track that never negotiates. It does not care whether we have enough budget; it only reads what the body has accumulated. One more trap must be stated clearly: do not mistake the silence of data for safety. In a serious analytical framework, every empty cell must be marked as "unassessed", never written as "cleared". This is dry discipline, but it is life-saving discipline. In Vietnamese athletics, many conclusions about athletes are being issued in an "unassessed" state with a tone that sounds like "cleared". So where must the reader of the body's verdict begin? With something so small people overlook it: record-keeping. One notebook, one spreadsheet, one process for handing over files when an athlete changes squads, and a habit of recording performance alongside the recording conditions. Just those four things, repeated long enough, will produce data no money can buy overnight: a progression curve long enough to separate talent from luck, and thick enough for injury to surface before it speaks. That forty-page file will eventually have a few more numbers filled in by someone. But what I hope for more is a new generation of files, where empty cells are properly respected, where numbers come before praise, and where every young athlete is read across a long series rather than a single moment. The body is a manuscript already written. Our task is to learn to read it earlier, before someone tears away its final page.