When a Football Analysis Reads Only N/A: Lessons from the Vietnamese Women's Team

I used to think I understood football, until Guangzhou taught me a lesson in ignorance. That night, I received a tactical analysis ahead of a Vietnamese women's team match. The file was 28 pages long, with a red cover, a list of statisticians, and even a company logo. But when I opened the data page, every single percentage column displayed N/A. There were no midfielders' names, no block-shape diagram, no passing map, no pressing metrics. I looked at the colleague sitting next to me—a man who had just defended his master's thesis on data analytics—and he nodded: 'Just write from intuition, because there is nothing to write about.' That remark made me realize: Ignorance is not the real danger; the real danger is turning it into self-complacency. In Vietnam, the N/A story is not unusual. I have spent years following the women's national team from SEA Games to Olympic qualifiers. After the team reached its first Women's World Cup in the summer of 2026, many believed everything would change. Yet domestic women's football still lacks public data: possession time, number of crosses, successful tackles—all scattered across live text updates and vanishing after the final whistle. The pitch is not only about a whistle; it also carries forgotten voices waiting to be heard. I remember 2026, when I was a freshman in broadcast journalism. I once asked a 62-year-old female fan: 'Women's football doesn't have a World Cup, right?' She shook her head and quoted the exact 2026 Women's World Cup final between China and the United States. That evening, I rewatched the entire penalty shootout won 5-4 by the U.S., and for the first time I understood how ignorant I was. That lesson returned every time I opened a long but empty file of analysis on women's football. The lack of data is not the players' fault; it is the fault of a system that failed to record what they did on the field. When Vietnamese men's football receives detailed data packages from sports analytics companies, the women's side is almost only recorded by... scorelines. A match is reduced to three digits: goals for, goals against, and number of matches. Ask yourself: How can a coach design drills for wingers without measuring their explosive sprints? How can a goalkeeper be evaluated without save metrics in one-on-one situations? The absence of data is not harmless. It forces people to rely on stereotypes: men play faster, stronger, and are more worth watching. A generation of female players is erased before they can even appear on a chart. I still remember the opening match of Group E at the 2026 Women's World Cup between Vietnam and the United States. Goalkeeper Tran Thi Kim Thanh, a player who had competed in Vietnam, saved a penalty from the U.S. team. Those who only look at an xG table will see a high expected-goals rate for the U.S. and conclude that Vietnam was simply lucky. But xG does not explain the 4-4-2 defensive structure of coach Mai Duc Chung: the two central midfielders dropping deep, the two full-backs letting opponents receive the ball along the flanks and then blocking the cut-backs. A penalty save is not a random number; it is the culmination of hours of training, reading the striker's movement, and the fearless spirit of a team playing on the biggest stage for the first time. Without slow-motion footage, we tend to credit Lady Luck. But watching every single replay taught me that in women's football, refereeing decisions and the rhythm of a match sometimes matter more than any aggregate metric. The match against the Netherlands followed immediately, and Vietnam lost 0-7. That score became a scar in history, but I wrote in my notes: Five goals conceded do not define a generation, but how we see them will. Actually, Vietnam conceded seven goals against the Netherlands, but the point I want to emphasize is not the number. I once debated an English editor who said: 'If the men's team lost 7-0 to the Netherlands, the entire world would blame the coach; but because it is a women's team, we only see it as normal.' That sentence reminded me of Liu Ailing, a former defender of the Chinese women's team, who once sent me a thank-you message after I wrote about the 2026 Women's World Cup final. She did not talk about technique; she talked about how those girls had been misjudged for more than twenty years. A heavy defeat may be just one line in a statistics table, but if we only read it through a website, we lose the story of why that team reached the World Cup at all. Post-match tactical analysis should not start with the question 'who won?' but with the question 'how did they play?' In Vietnamese women's football, I see clear bright spots. The defensive line is more disciplined than most amateur men's teams I have watched. They know how to compress spaces between lines when the opponent moves the ball into central areas. Unfortunately, without heat maps, you cannot prove those things. In a world dominated by numbers, what cannot be proven gradually becomes nonexistent. That is why sports analytics companies for women's football have a huge opportunity. An unserved market—that is an opportunity. I also believe the overuse of xG is leading many analyses astray. A shot off the post, a spectacular save, an invisible foul—none of these are in a standard statistical report. I once thought data was absolute truth; after watching matches directly at Hang Day Stadium, I changed my mind. Football is played by human beings, and human beings cannot be reduced to a Poisson equation. Look at the traditional wingers of the Vietnamese women's team in domestic leagues. Many of them are disappearing from training systems because coaches copy modern European models. They prefer inverted wingers cutting inside onto their stronger foot to shoot. But how can a national team score from smart crosses if nobody trains the crossers? That is a consequence of chasing trends without understanding local context. Supporters of women's sport in Vietnam are not demanding something unrealistic. They simply want to see their players not treated as second-class athletes. Part of that respect comes from giving them tools similar to their male counterparts: GPS devices, analysis teams, and access to historical data archives. If we value the sports narrative, we must also value the numbers that tell that story. Conversely, if all we have is a white sheet full of N/A, the only way to fill it is imagination—and a journalist's imagination cannot replace truth. From an opposing viewpoint, some argue that the absence of data in women's football is not a disaster. For decades, women played without smartwatches or satellite tracking. They still develop unique skills: reading the game, adaptability, and collective connection. If we invest in technology while retaining a men's-market mindset, we may create a layer of young players who copy male tactics but have no identity of their own. I learned that defeat is also a language, if we are brave enough to translate it. Instead of imitating the English Premier League, Vietnamese women's football could build its own metrics, suited to physiques and weather conditions, creating a data system that is both humane and accurate. On the commercial side, many sponsors remain hesitant because they think women's sport is not profitable. But I have witnessed the passionate atmosphere at SEA Games finals featuring the women's team; the stands were full, and fans did not discriminate by gender. Commercial value and competitive value should not be placed on two opposite axes. When a goalkeeper saves a penalty against the world champions, she is not only saving a goal—she opens a media story that can sell tickets, jerseys, and belief. The N/A gaps in analysis reports are also the white space for courageous brands to step in. I do not know when the data system for Vietnamese women's football will be complete. But I know change is beginning. In countries like the United States, Japan, and Norway, female sports analysts are leading the way. In Vietnam, the new generation of sports students is increasingly realizing that they can contribute by collecting data from amateur matches, filming videos, and running open-source software. The pitch is not only for players; it is also for storytellers. And my story will not begin by celebrating victory, but by acknowledging the numbers I do not yet know. The opening whistle blows, but are we brave enough to hear what happens after it? The ultimate lesson is: do not fear a report full of N/A. Treat it as a mirror reflecting how little society has invested in women's sport. Ask: who is missing from the data set? I have learned many things from such an empty document; worse, if we keep pretending those numbers exist, we will let the next generation of female players read N/A on the very day they wear the national jersey. And no one wants to hear that answer on the pitch.