Data doesn't lie, but data gaps are strangling Vietnamese athletics

I opened the analysis that the system sent. Every single cell read: “insufficient information, cannot assess.” No athlete name, no performance number, no competition date, no venue. An empty data page is not a useless page; it is a question. That question says that in a sporting culture hungry for titles, we are still writing reports from feeling rather than evidence.

I stood in the stands of Thong Nhat Stadium one morning in August. The sun was not yet harsh, the rows of seats were empty, and a group of young runners was warming up around the track. The coach held an old stopwatch and wrote notes in a yellowed notebook. No electronic board. No wind gauge. No GPS device. No link to look up results after training. That data gap was not unique to one training ground. It mirrors a system that runs on memory, on word of mouth, on trophies behind glass, more than on verified numbers.

I once built spreadsheets for the World Cup before I learned that the stands are never in the formula. In 2026, I left a statistics company to join a new sports media platform. With a bachelor's degree in statistics, I built my own pressing model for Barcelona. When Neymar moved to PSG for two hundred and twenty-two million euros, I published a number: Barcelona's successful pressing rate fell from thirty-four point two percent to twenty-eight point seven percent. That article changed how I see sport. Data does not only describe what happened; it is a lens for seeing what is happening in front of you. But when I went to Moscow to cover the 2026 World Cup, I discovered something even more important: numbers are the bones, emotion is the flesh. If bones have no flesh, they are a dry skeleton. If flesh has no bones, it collapses. Vietnamese athletics has more than enough color, more than enough beautiful stories of resilience, but our data system has too few bones to support it.

Fans in Vietnam can watch Nguyen Thi Oanh on the track, can see Quach Thi Lan hurdling with power, but they cannot systematically find out where those athletes stand in the continental rankings, how many seconds they still need to reach the Olympic standard, or how many doping tests they have had in the past year. Their results are scattered across articles, social media posts, interviews. There is no national database run according to World Athletics standards. Every season, we hear that an athlete won a SEA Games medal. That joy is real. But it reflects only a small part of the picture.

Look at how the Olympic system operates. World Athletics uses two pathways: the qualifying standard and the world ranking points. To make the Olympics, an athlete must reach a specific mark within a defined window, or accumulate enough ranking points through recognized competitions. The most important part is not running fast once. It is planning to run the right race, at the right time, with the right wind, on the right surface, in the right season. That requires continuous tracking. A coach needs to know where the athlete is struggling, how to build strength, how long to rest after a competition. The foundation of all those decisions is data. Not data for showing off, but data for making decisions.

In my own years following competitions, the main lesson is this: the body is the most trustworthy data sheet. A stopwatch can be wrong because its battery is low. A wind gauge can be wrong because of its positioning. But trembling calves on the track cannot fake it. Heavy breathing after a final sprint cannot be performed. When an athlete says they gave everything but their face still has too much leftover energy, I know that number on the results board needs a footnote. That is why, in the long run, a sporting culture that relies only on emotion will not survive. Emotion needs to be fed by trustworthy data.

In 2026, the pandemic froze global sport. Stadiums were empty. I sat in Shanghai writing about emptiness. I interviewed a footballer from Wuhan who had lost a family member. The interview broke me for days. I stayed home for three weeks, rewatching 2026 World Cup tapes and asking myself why I still wrote about sports. The answer arrived on a quiet evening: sport does not exist to produce numbers; sport exists to produce meaning. But meaning cannot be transmitted without a proper system of storage and storytelling.

An empty stadium does not lack a match; it lacks the soul borrowed from the crowd. An empty stand is like an empty data set. People can make endless judgments based on intuition, but they cannot verify them. Vietnamese athletes are competing in an environment where most performances are not updated to international standards. We praise them with beautiful words, but we rarely answer a simple technical question: under what wind condition was that record made, at what altitude, on what track, with what shoes? Without those data points, we cannot know whether a national record is a true leap forward or simply a product of favorable conditions.

I am not denying the effort of coaches. I admire them. They work in difficult conditions, stand by the track from morning to night, and encourage their athletes after every failure. But enthusiasm cannot replace a data file. Imagine a doctor diagnosing a disease without lab results, or an engineer building a bridge without technical drawings. They might succeed in some cases, but the risk is enormous. Athletics is a sport of milliseconds. A one percent difference can decide a medal. In that world, a good data system is a form of occupational safety.

I remember an afternoon at a regional youth meet in the South. A sprinter crossed the line a tiny margin ahead of the second-place finisher. The stands erupted. But nobody recorded the wind. Nobody knew what her real time would have been without the tailwind. A year later, she could not improve. She and her coach blamed psychology. Maybe right, maybe wrong. But without split data, how could they know whether the problem was speed endurance or starting technique? That story is not unique.

During my career, I have watched many decisions made on intuition. An athlete is rested because the coach feels she is tired. Another athlete is given more load because the coach believes she is still fresh. Those judgments are sometimes right, sometimes wrong. But in elite sport, we cannot rely on luck. We need objective indicators to verify. Without heart-rate data, sleep data, or endocrine data, adjusting training load is a gamble.

On the other hand, I also want to warn against an opposite trend. In recent years, digital transformation has flooded sports. Some organizations buy management software, install motion-capture cameras, and turn them into a beautiful board for reports. Data can become a new pastime. People collect thousands of metrics but do not know how to use them. They look at the screen more than they look at the person in front of them. That is a dangerous distortion. A data gap is not solved by stuffing it with more numbers, but by building a system that knows which numbers matter and which are merely noise.

I have seen a team with a huge data trove still lose decisive matches. They could analyze opponents down to every meter run, but did not understand the mood in the dressing room. They knew exactly how many times each player passed the ball, but did not know whether that player was lonely on the field. Data is not a replacement for emotion. Data is only a compass. The navigator must still be human.

Vietnamese athletics stands at a crossroads. We can continue living inside legendary stories, or we can begin building a humble but honest data foundation. We do not need to start with giant systems. Start by standardizing wind measurement, performance recording, result publication, and athlete profiles. A simple electronic notebook is worth more than an unused analytics system. What matters most is building a habit: not worshipping the stopwatch, but also never ignoring it.

I stood in an empty stadium during lockdown and understood that people cannot live without sport. Sport is a universal language. But to tell that language fully, we need emotion and data together. An article cannot replace a database. A medal cannot replace a clear training process.

Looking back at twenty-six years of writing about sport, I realize I belong to a generation that has witnessed the transformation of media. From handwritten reports to websites, to social media, to artificial intelligence. The core value has not changed: tell the truth. The truth in sport is not just the final result. The truth is the process, the conditions, the context, the people. An athlete cannot become a legend just by running fast on one afternoon. They become legends because they run fast many times, in many different conditions, and always know what they are doing. That requires data to prove.

Numbers only tell half the story; the other half lies in trembling legs on the grass. I write this line to remind myself not to turn sport into a cold spreadsheet. But also to remind myself that without numbers, the story will drift. An athlete may run beautifully, but if no one records it to a standard, that performance will dissolve into air like the cheering of a late afternoon.

The future of Vietnamese athletics lies in small tournaments, dawn training sessions, and tense meetings of coaching boards. I believe one of the most important reforms is not raising salaries or building stadiums. The most important reform is building the habit of respecting data. Let every training session have a file. Let every national competition have an updated ranking. Let sports journalists have access to the data of their own country's sport.

That may sound dry, but it carries a quiet revolution. When a coach can look at an athlete's performance curve over three years and know exactly when to adjust, they no longer have to guess. When a manager can compare national performances with continental standards, they know where to invest. When an athlete can see their own progress, they gain a source of motivation that cannot be bought.

I am not optimistic enough to think this can be done in a few months. But I believe in the value of small steps. Start with a full survey of national athletes. Start by opening a simple website that publishes results from every official competition. Start by training competition secretaries on how to record wind and temperature. One hundred small details will create a different foundation.

Compared to the great sporting nations, Vietnam is still in the early stage of data professionalization. But that is not a disadvantage. We can take a shorter path, learn from the mistakes of those who came before, and avoid buying luxury tools we do not need. We can build a data model tailored to a sporting culture that is still poor but rich in ambition.

The truth is that I do not know which athlete will be the next to take Vietnamese athletics to the Olympics. Nobody knows. But I do know that to do it, that athlete will need a supportive data system. They need their injuries tracked on charts, their performance compared with Asian athletes in the same age group, their training planned on evidence. Legends are not born from luck. Legends are built from thousands of sessions, recorded in thousands of numbers, and told through vibrations that cannot be quantified.

Looking back at that empty analysis, I no longer see it as a failure. It is the system's reminder: if you want a sporting culture to tell great stories, first you need real data. When the data gaps are filled, analysis pages will no longer say “insufficient information.” They will speak about people, about effort, about pushed boundaries. And only then will the sentence “numbers tell only half a story” become whole.

I often say to young colleagues: the way an athlete shakes hands after crossing the line, the way they look at their coach, the way they sit down to take off their shoes, all of that is data. But that kind of data cannot be placed in a spreadsheet. It needs a storyteller. And the storyteller also needs a spreadsheet to verify. I do not choose to abandon the spreadsheet in pursuit of emotion, nor do I abandon emotion to worship the spreadsheet. I choose a harder road: to let both coexist. That is the road I want Vietnamese athletics to walk in the coming years. A road without vague gaps, with data pages that know how to tell stories, and stories that respect data.