When Sports Analysis Leaves Data Blank: A Warning for Vietnamese Journalism

One day, I received a match analysis labeled “Deep Analysis.” I opened the file expecting to see hundreds of metrics: PPDA, xG, successful pressing actions, match tempo. Instead, all I found were blank fields and the line: “Insufficient information, cannot assess.” The writer did not even provide a single number or event to anchor the piece. No chart, no source citation, no argument built from evidence to conclusion. I felt like a head coach opening a match video only to see a blank tape. This is no longer an isolated case. More and more Vietnamese sports articles rely on flashy words like “overwhelming dominance,” “fighting spirit,” or “luck was not on our side” without a single statistic behind them. Meanwhile, in Europe, outlets such as The Athletic or analysts like Opta have turned data into the storyteller. I fear we are falling behind in our own narrative. The context is not a lack of data. Vietnam has a rapidly developing sports media system, clubs have begun investing in analysis departments, and official statistics exist for leagues. But the growth of digital infrastructure does not automatically create a habit of thinking with numbers. In 2026, when I first wrote a 20-page report for a club in Nha Trang, my entire argument rested on two metrics: PPDA and xG. At the time, many mocked me for bringing mathematics onto the pitch. Yet those numbers helped the club avoid relegation. The world has changed. The 2026 World Cup did not only produce a champion; it gave birth to the “Data Monk” inside me. That was when I wrote about Ronaldo’s hat-trick with an xG of just 0.87, showing that his finishing efficiency far exceeded the quality of chances. The article sparked two camps: one saw me as disrespecting a legend, while the other understood that data does not deny greatness; it merely places it in context. Since then, I have always stressed the phrase “according to the data” to remind readers that my assessments have a basis. So why does a sports article need data? First, data helps us avoid emotional traps. When we see a beautiful move, our hearts race, but when we review the video, we notice that the move was created by a defensive positional error. Football and badminton are fast-paced sports where visual impressions deceive. A smash like a rocket might excite the crowd, but if you look at the win rate when rushing the net, the tactic may be inefficient. Data is never in a hurry; it waits for us to become sober. Numbers are never rushed. We are the ones who rush. Second, data allows us to tell the stories of forgotten people. In 2026, I wrote about a Vietnamese track-and-field athlete who lost in the women’s 100m heats but had a starting reaction time among the top five in the world. That is a story of extraordinary effort that rankings cannot reflect. Without numbers, she was just another name on the eliminated list. With data, she became the protagonist of a different article. Data can capture invisible moments that the naked eye misses. Third, data keeps us humble. When I started my career, I thought data was everything. But after the pandemic, when football stopped, I spent six months reviewing five years of data and realised that high-pressing teams under heavy pressure often collapsed between the 70th and 80th minutes. That taught me that any analysis has limits. An honest article must acknowledge uncertainty instead of making absolute statements. Therefore, I do not hesitate to write “insufficient data” when it is insufficient. However, some argue that sport is art and should not be constrained by soulless numbers. They say “football is not mathematics” or “badminton needs emotion, not statistics.” I respect that viewpoint, but I counter gently: numbers do not strip away the poetry of sport. On the contrary, when you know a footballer runs 12.5 km in 90 minutes, or a badminton player smashes at 400 km/h, you admire the beauty of human limits even more. The truth is that data and emotion can complement each other. Yet everything has two sides. When data is used to distort or cherry-pick, it is more dangerous than having no data at all. I have seen reports that flatter club directors by highlighting a few good metrics while deliberately ignoring unfavourable ones. That is scientific dishonesty. Therefore, my only standard is to seek counter-evidence before concluding. If I claim a team defends well, I must check tackles, clearances, and expected goals against; only without counter-evidence do I dare to assert it. Back to that blank analysis. Many might see it as a simple glitch — a lazy writer or a broken automated process. But to me, it signals a larger disease: many sports outlets chase rumours and clicks while abandoning accountability. They prefer copying an unverified transfer rumour to writing an xG analysis. They prefer interviewing an “anonymous source” to spending an afternoon reviewing match footage. Having observed sports for more than 30 years, I have witnessed technological change. Today, a smartphone can record an entire match, and software can automatically count steps. Devices can measure athletes’ heart rates. But technology cannot replace critical thinking. Without ethical standards and methodology, data is a pile of meaningless digits. Conversely, an article with no data but acknowledging “I do not know” is more trustworthy than one full of junk numbers. Each match is a tea session for the data monk — silent yet absorbing. In badminton, a player cannot rely solely on feel to return serve; they must study an opponent’s serving habits through head-to-head data. In football, a coach does not just watch goals but examines how the opponent presses to adjust the build-up. All that knowledge comes from data. But data is only a vehicle; the story of people is the destination. I often ask myself: can a Vietnamese sports outlet survive and thrive without an analytical foundation? I believe the answer is no. In a world where readers can watch highlights themselves and read league tables, a journalist’s value lies in explaining why something happened. That explanation is credible only when backed by evidence. Evidence includes numbers, video, quotes, and context. Without evidence, we are merely writing decorative tales. Looking around Asia, Vietnam is not the only country facing this challenge. But I believe Vietnam has an advantage: a young, eager workforce. I have seen journalists spend their own money on analysis software and coaches teach themselves Python to study opponents. That spirit is the raw material for building a data-driven sports media where every conclusion can be traced to a source. I do not like vague philosophy. I like concrete numbers: 12 goals in 3 matches, 45% possession, 2.1 points per game. Those numbers let us speak a common language. When that blank analysis appeared, I saw it as a reminder: return data to the centre of the story. Do not let writing pages become empty pages. I hope that in the future, sports newsrooms will have data-quality control units where every article must cross the finish line of honesty. Every writer needs the spirit of a monk, embracing austerity to find the truth. I have no perfect formula, but I know one thing for certain: the value of journalism lies not in the speed of reporting but in the depth of understanding. Finally, I dedicate my conclusion to that analysis. If anyone reads this, please do not throw it in the bin. Let it serve as a mirror for the sports industry. Perhaps it is the most fitting answer to a question many ask: “What is wrong with our sports journalism?” — The answer is that we often forget that, above all, we must respect the truth. When the stadium is empty and data is abundant, I understand that I follow football for the people, not just for the numbers.