N/A and the Silent Lesson of Sports Data in Vietnam

That afternoon at the training center, I received an empty analysis report. There was no player name, no possession percentage, no technical metric. The whole document was reduced to three letters: N/A. Many journalists would throw it away. I kept it, because an empty stadium can still hold emotions. A report without data can say more than one stuffed with fabricated numbers. During the regular season, Vietnamese football teams are talking more about tactical analysis. They mention pressing numbers, pass counts and heat maps. But most data remains scattered and unverified. Some clubs use GPS to track running distance. Others still rely on the coach's eye. That gap creates N/A reports: the technical staff wants numbers, but the system is not ready to provide them. I once followed a 400-meter hurdler nobody noticed. She was not on the medal list. But split times revealed something unusual: her first two hundred meters were too fast for her actual fitness. Her coach had quietly changed her step pattern between hurdles from thirteen steps to twelve. Without data, I would never have spotted the key detail. Forgotten feats also need someone to name them. In football, possession is the most deceptive statistic. A team can hold the ball for sixty percent while making only sideways passes. The patient team may have forty percent and score from three decisive passes. If the report only offers possession time, it says little. Fans need to know where the ball appears in the final third, and how it moves. Modern metrics such as PPDA, progressive passes and expected threats give a clearer picture. PPDA shows how many passes the opponent completes before a team intervenes. A pressing side often has a low PPDA. But every number needs context: the opponent, the pitch condition, the players' fitness. A solitary number can mislead. When context is missing, saying N/A is more honest than inventing a figure. An empty analysis file is itself a piece of data. It reveals a lack of connection between the coaching staff, the fitness department and the technical team. It shows that questions about injuries, form and tactical adaptation remain unanswered. For a journalist, that gap is a clue for investigation. Do not rush to fill it with guesses. Ask questions from the silence itself. Contrary to common belief, I think no data is better than false data. A fabricated number can change the media narrative. It creates false belief, then false expectation, and the player pays the price. A sports writer is a gatekeeper: verify sources before publishing. When the source is unreliable, writing N/A takes more courage than writing three pages of opinion. Honesty begins with admitting we do not know. The press room door shuts, but the field stays open. I remember a Women's World Cup where I was denied entry to the press conference for reasons unrelated to work. I stood in the corridor, watched the screen and took notes on every move. The tactical analysis that followed came from direct observation, not from official data. Missing information cannot silence someone who knows how to listen. Hidden people often tell the biggest stories. Vietnamese football has produced great victories that few remember. Mainstream media prefer to write about goals, but I remember faces after goals. A goalkeeper's save in stoppage time can change a dynasty. When the report is still empty, a writer should not chase sensational events. Go back to the training ground, listen to reserve players and study small details. The biggest stories usually begin in places with the least light. On top of that, Vietnamese sport still lacks a common standard for data collection. Each team uses different software. Some records are kept by hand, others use AI cameras, but few systems talk to each other. Deep analysis requires unified measurements. Otherwise, comparing two matches becomes comparing different units. Media professionals also need statistical literacy so they will not be misled by polished numbers. People often ask me: how many data points does your article have? I ask back: where did the data come from? In the digital age, verification matters more than speed. A clean, honest report that dares to say more information is needed still has its own value. It reminds us that sport is not a game of soulless numbers. Sport is a story about people. I write not only about the score; I write about what happens in between.