Vietnamese Badminton and the Blank Space on the Analysis Sheet

In the press room of a BWF World Tour event, I sat in the third row with the statistics sheet handed out by the organisers. More than half the boxes were empty. No average rally length. No net-point win rate. No measured shuttle speed after the smashes. The reporter next to me folded the sheet into quarters, neatly, and said something I still remember word for word: “Just write it by feel.”

I have heard that sentence many times, across many sports. In athletics, in football, on courts where the machinery is so complete that people can measure even the distance a midfielder runs without the ball. But in badminton, a sport where the shuttle sometimes travels faster than average human reaction time, that sentence survives as a habit. That habit is shaping how Vietnamese people understand this sport, and from what I have observed, it is shaping it in an unfavourable direction.

A five-tier system and a milestone that has stood still

The BWF World Tour is divided into five tiers: Super 1000, Super 750, Super 500, Super 300 and Super 100. Each tier carries a different amount of ranking points, and each tier determines whether a player can enter the finals. Nguyễn Tiến Minh once reached No. 5 in the world in October 2026, the same year he won a bronze medal at the World Championships held in Guangzhou. That remains the highest mark Vietnamese badminton has ever reached.

Behind that mark lies a silence longer than a decade. Nguyễn Thùy Linh, Lê Đức Phát and the generation born after 2026 are still working their way through the middle of the rankings, where every win requires surviving three or four consecutive rounds, where steady point accumulation matters more than a single brilliant moment, and where travel costs become part of the tactics.

The Olympic cycle compresses everything. A place at the Olympic Games does not come from one tournament; it comes from points accumulated over roughly twelve months, across continents and arenas with different climates. To plan such a journey, you need to know whom your player beat, whom she lost to, how she won and where she lost. That is when a blank statistics sheet becomes a problem bigger than a press-room inconvenience.

The three layers of badminton data

The first layer is data that exists. Match results, game scores, match duration, umpire names, dates — all of this is recorded by the World Badminton Federation’s software and published on the tournament portal. Anyone with an internet connection can look it up. But this kind of data only answers who won, not why.

The second layer is data that is wasted. At events from Super 500 upward, organisers usually hand the press a more detailed sheet containing columns very few people read: points won on serve, how often the shuttle is pushed beyond the sideline, the distribution of points across areas of the court, the win rate in rallies lasting more than ten shots. These figures exist, they sit quietly in a file, and they almost never enter any technical argument in Vietnam.

The third layer is data that does not exist. Nobody measures a player’s heart rate in the third game of a semifinal. Nobody records the average interval between serves when a player is trailing. Nobody notes how many seconds it takes a player to return to the centre position after a cross-court smash. These things sit outside every piece of software, and they are the things that decide matches.

The blank space is not evenly distributed. In men’s singles, where matches are televised most, you can still find a few workable statistics sheets. In men’s doubles, women’s doubles and mixed doubles, everything is far murkier: a doubles rally involves four rackets moving at once, and assigning responsibility to one individual within that rally requires a multi-angle recording system that domestic tournaments do not have. The result is that our entire understanding of Vietnamese doubles rests on sentences like “this pair is good at the net” or “that pair tends to lose focus”.

Based on my experience following matches, I once did something anyone could do: I counted by hand. In the summer of 2026, at a domestic tournament, I sat in the stands and recorded every rally of a men’s singles match that went to three games. I counted 63 rallies. Of those, 18 ended with an unforced error by the eventual winner, most of them in the first two games. After the third game closed, the winning player walked past the technical area, bowed to his coach, and nobody in the press room could say exactly how many times he had erred. The biggest thing Vietnamese badminton lacks is not players. It is records.

I am aware I am not the first to say this. But the consequence is the part worth discussing. A sport without records automatically falls into a mode of believing in inspiration. Inspiration wins in the meeting room, but loses on court. Without records, every debate about a player ends with a sentence of feeling: “he has the talent”, “she is mentally weak”, “he hasn’t matured”. Those sentences may be right. But they cannot be wrong. And a judgement that cannot be wrong cannot be corrected.

I once saw the power of a simple count in a completely different situation. In 2026, when COVID-19 paralysed world football, I followed the K League — the South Korean competition that kept playing in empty stadiums, where organisers placed hundreds of cardboard cut-outs in the stands and piped crowd noise through speakers. I surveyed 120 matches from that season myself and found the home win rate had fallen by roughly 6% compared with the previous season. Nobody needed biometric sensors to see it; a spreadsheet and patience were enough. Fake crowd, fake noise, but the emptiness was real, and I recorded it with my ears.

In Vietnamese football, the expected-goals metric entered the vocabulary of ordinary fans within a few seasons. In badminton, the concept of a “net win rate” remains foreign to most domestic spectators, including regular followers. This mismatch does not reflect the intelligence of the fans; it reflects whether anyone in a sport is willing to sit down and turn a match into words.

From Eriksen collapsing at Parken in 2026 to Su Bingtian standing still beyond the finish line in Tokyo, I see one long track called the loneliness of the observer. In badminton, that loneliness fits neatly inside a white box on a statistics sheet: knowing something happened, knowing it mattered, and having nothing to prove it with.

Su Bingtian ran 9.83 seconds in the men’s 100 metres semifinal at the Tokyo Olympics, setting an Asian record, then finished sixth in the final. The record exists. But a record does not automatically become a medal, and it does not automatically become a book. It only becomes meaning when someone bothers to read it. Vietnamese badminton lacks both ends: it lacks the record, and it lacks the reader of the record.

The blind spot lies somewhere else

There is a counter-reaction I consider half right, and the other half dangerous. When people realise they lack data, the natural reflex of administrators is to buy data. Hire a foreign analytics firm. Install software. Sign with a tracking platform. Three months later there is a thick, colour-printed report, and nobody on the coaching staff finishes reading it.

The problem is not the tool. Badminton has fairly favourable measurement conditions: indoor arenas, a shuttle trajectory more stable than a ball’s, and only two or four people on court. Camera systems used for reviewing rallies at major events have existed for years. What does not exist is someone who stays behind after the match, opens the data file, and asks one specific question: where did this player lose. We mistake owning data for owning judgement. A coach with ten pages of metrics who does not know what he is looking for will read page one, nod, and return to what he always believed.

The second risk is subtler. Data can be used to justify a decision made earlier. Selecting a player for an international event is a decision involving budget, the athlete’s study schedule and relations between provinces. Once the decision is issued, people go looking for figures to say the choice was sound. At that point data stops being a tool of illumination; it becomes another medal to pin on the chest of the decision-maker.

There is one limit I want to state plainly. Some things about badminton cannot be measured by machines. Humidity inside an arena affects shuttle trajectory. Airflow from the cooling system in older venues can shift between games. A player’s sense of the court when the surface becomes slick after an hour. The fear of an opponent who has beaten you three times. These do not appear as charts, and they still decide results.

Objections to data culture usually come from people who love the sport poetically. I understand the feeling, because I too have written about sport in the language of silences. But I think this is a false opposition. Counting and feeling do not exclude each other; they feed each other. The best counter I have ever met was a coach who had taught badminton for more than twenty-five years, a man who could say fairly precisely how long a junior player would need to fix a bad habit, based on having watched thousands of children. He did not call it data. But it was data that had never been written down.

The most severely missing category of data, in my view, is injury records. A player sprains an ankle at one tournament, rests four weeks, returns at another and loses in the first round — those facts lie scattered across news items, and nobody gathers them into one continuous line. Before any decision to send a player onto court, I do not ask about the latest result, I ask about her old injury. In Vietnam that question often has no answer, which is why we are so often surprised when a rising player suddenly stops.

Start with a notebook

I do not expect Vietnamese badminton to have an AI-integrated analytics centre any time soon. Such things need money, people and a cultural foundation ready to receive them. What I hope for is far smaller: a notebook.

A young coach in Bắc Ninh or Cần Thơ could start by recording three figures for each of his student’s matches: points lost to unforced errors, win rate in rallies over ten shots, and how often a point is lost immediately after serving. Those three figures, added up across twenty matches, are enough to say something memory cannot. No software needed. No contract needed. Only patience — which this profession already demands in abundance.

What worries me is not that we lack tools. What worries me is that we are too used to sitting down after a defeat, retelling the match through emotion, and dispersing. A generation of players can pass through three blank notebooks, and when they stop, nobody knows exactly how they used to win.

Nguyễn Tiến Minh reached No. 5 in the world in October 2026. More than a decade later, we still tell that story through memory, through a few scores and through old video clips. A decent badminton nation would retell it through rally lengths, through net approaches in the third game, through how much his heart rate rose after twenty consecutive shots. We do not have those things for him, and perhaps never will. But we can absolutely start having them for the next player — starting today, from a sheet of paper, from one person willing to stay behind after the arena lights go out.