One Name, Two Sports: Why Vietnamese Martial Arts Data Is Counting Wrong

On a desk at the Tien Son Sports Palace in Da Nang, a coach slid a list of fourteen names toward me. The left column said discipline: Taekwondo. The right column listed age, weight and unit. No column said event. Nine of those fourteen train poomsae, the forms, scored by a panel of judges. The other five train kyorugi, sparring, scored by electronic body protectors and referee commands. They follow two training programmes, eat two different diets, break down in two different parts of the body. At the SEA Games they compete in two arenas a few kilometres apart, sometimes on different days. On this sheet of paper, they occupy the same line. I kept that sheet all afternoon. My notebook could record the date, the hour, the coach's name, the number of sessions, even the temperature inside the hall. It could not record something simpler: what sport these people actually compete in. Vietnam's martial arts medal tables have lived on a single act of merging for nearly two decades. Taekwondo, karate, wushu, judo, vovinam and pencak silat are habitually placed side by side as one block, called the martial arts sports. Every Games cycle, the most repeated figure is the medal count of the whole block. That merging had organisational reasons and it worked while the number of events was small. It stopped working the moment each name split into two measuring systems. Wushu has sanda and taolu. Karate has kumite and kata. Taekwondo has kyorugi and poomsae. Vovinam has combat and forms. Half of these events are decided by judges sitting beside the mat; the other half are decided by who is still standing when the bout ends. Those two systems share no training programme, no conditioning cycle, not even a career length. Yet federations, administrators, media and sponsors still read one line. Numbers do not lie; we simply have not asked them the right question. The home Games of 2026 was the first time I sat through both arenas on the same day. The morning was forms: music, mats, not a single sound of impact. The evening was combat: body protectors cracking, shouting, a doctor calling for the ice bag. One delegation, one colour of kit, two atmospheres with nothing in common. Drawing on my own experience of following bouts and training sessions, I did to martial arts what I once did to 242 matches involving SHB Da Nang between 2026 and 2026: I coded every single bout into one row of data. Each row has seven fields: parent sport, event, scoring system, duration, method of deciding victory, common injury site and average career length. Every figure is cross-checked against at least two sources before it goes into the notebook. The merged table I rebuilt for 2026-2026 surfaced three problems faster than I expected. A federation announces five gold medals for its sport. Unbundle it: three came from forms events, two from combat. A reader of that bulletin has no way of knowing, because the data line only carries the sport's name. The consequence does not sit in the newspaper; it sits in next year's target-setting meeting. A base that produces medals steadily and a base that depends on the draw will receive two different investment decisions, and both are hiding behind the same figure. At budget level the problem shows up in equipment. Combat events need body protectors, regulation mats, ringside doctors, sparring partners of the same weight and training camps where there are real people to hit. Forms events need mats, mirrors, a sound system and a judging panel kept up to date with the rulebook. Two different cost lines. Money usually flows by sport name, and there is only one sport name. Everything gets a share, and every share is short. At talent identification level the trail is fainter still. A fifteen-year-old trains both forms and combat, then at seventeen picks a direction. In the merged table that fork in the road does not exist. When a province reports contributing three national team places, the number three does not reveal whether that is three athletes in one event or one athlete in three events. Those two situations call for two different policies, from scholarships to nutrition budgets. Take an example from the notebook. Two athletes from the same delegation, the same weight listed on paper, both called national team members. The first trains an average of 90 minutes a session, with 60 per cent of that time on forms and 40 per cent on base conditioning. The second trains 120 minutes, of which 70 are contact sparring. Measured by the indicator 'national team training sessions', these two people are identical. Career length behaves the same way. The combat group leaves the international stage several years earlier than the forms group, because of accumulated impact and repeated weight cutting. The forms group holds form for longer but carries tendon, back and knee injuries from sheer volume of routine. Once the two groups are merged, aggregate indicators such as average squad age or years of service become numbers that measure nothing. Look at the faces that have lasted on the international stage to see the different rhythms. Chau Tuyet Van and Tran Dang Khoa belong to poomsae. Duong Thuy Vi belongs to taolu. Nguyen Minh Phung and Nguyen Thi Ngoan belong to karate. Each is a story of their own, yet their records are always filed in one column, so nobody can read the training cycle that actually sits behind the result. There is one detail I have checked repeatedly in the notebook. At Games, forms athletes usually get only two rounds, with a narrow band of outcomes and a small margin of error. Combat athletes can meet the strongest opponent in the first round. The same gold medal, two completely different levels of randomness. The prevailing assumption among followers is that combat is the real martial art and that forms are padding to fill the quota. My coding table does not support that assumption. Forms events deliver more stable results because they carry fewer variables, and stability is precisely what you can plan around for years. Put another way, the base treated as secondary is carrying the predictable part of the performance. At media level the consequence is the most visible. A gold in a combat event and a gold in a forms event produce two almost identical headlines. Readers have no way of knowing who they just read about, what that person trains, or how long the preparation took. That blur repeats every Games cycle, and it teaches the public a bad habit. There is a counter-argument worth hearing: merging makes communication easier, sponsorship easier, targets easier to defend. True in the short run. The price paid later is that every four-year cycle produces an argument with no data to end it. Another blind spot lies in incentives. Splitting the events makes each line's total smaller, the headlines smaller, the assigned targets harder to justify. Nobody wants to shrink their own medal table. The problem lies in incentives rather than technique, and that explains why this gap has survived so long. Before asking who wins, ask who keeps discipline. The most overlooked part concerns injury. With merged data it is easy to compare an athlete returning from injury in one event with a healthy athlete in another. The pressure to prove yourself in the very first tournament after recovery raises the risk of re-injury, and in combat that price is paid in joints and in the head. A dataset split by event would block that kind of irresponsible comparison. The bout ends, but the data does not. The signal to watch in the next cycle sits on the entry form, not on the medal table. If the entry form gains one column for event, everything downstream can be separated: medals separated, budgets separated, injury records separated. Every season is a chapter, and I am only the person holding the bookmark. The work required is cheaper than a gold medal: one extra column on the entry form.