Vietnamese Athletics and the Data Gap Behind the Medals

National stadium, one October morning. A female runner finishes the 800m, sinks down beside the track, hands on her knees. An official reads the result through a loudspeaker, the sound breaking apart in the thin air. Three months later, as I sit down to rebuild her performance curve for an analysis, that number exists nowhere: not on the federation portal, not in the organiser archive, not in any database I can access.

I have followed athletics for nearly forty years, from the days I edited running bulletins for a foreign magazine to the day I returned to Saigon and built the city's first women's sports podcast. I have never met a sport that wins international medals this regularly while letting its own data fall away this fast.

We have medals. We do not have memory.

In May 2026, in Phnom Penh, Nguyen Thi Oanh completed one of the strangest SEA Games campaigns in the region's athletics history: four gold medals in the 1,500m, 3,000m steeplechase, 5,000m and 10,000m. On one afternoon she ran two events back to back. A year earlier, at My Dinh Stadium, Vietnam's athletics delegation topped the SEA Games 31 medal table. Further back, at the 2026 Asian Games in Jakarta, Bui Thi Thu Thao won long jump gold, the first time Vietnamese athletics reached the continental summit in an individual event.

Those are real milestones. But to place them inside a verifiable frame, a working analyst needs three things: a year-by-year personal best series, detailed competition parameters, and full event context covering tier, track conditions, wind and altitude. Vietnamese athletics lacks all three.

World Athletics tiers its competitions clearly. The Olympics and the World Championships sit at the top. The Diamond League and continental championships sit one level down. The Continental Tour and national trials sit below that. Olympic entry has two doors: hit the qualifying standard, or accumulate world ranking points. Both doors demand something we have not built, which is continuously recorded competition data.

In 2026 I wrote a piece on the high press of Japan's U20 women, submitted it to the men's World Cup desk, and had it rejected as “off topic”. I published it on my own page. That rejected article is now the scar I treasure most. It taught me that one number in the right place outweighs a thousand compliments.

Athletics is a sport of measurement. Every argument on the track ends in a number accurate to a hundredth of a second, and every number must answer three questions: measured with what instrument, measured under what conditions, and measured against which standard.

At the analysis level I always start with a four-row comparison table. Row one is the athlete's mark at the meet. Row two is the world record for that event. Row three is the Olympic qualifying standard for the corresponding season. Row four is the world lead at that moment. The gap between rows one and three tells you how far the athlete is from an Olympic berth. The gap between rows one and four tells you where she stands on the world map.

For most Vietnamese athletes I cannot build the last two rows, because we do not publish season-by-season marks systematically. SEA Games results exist. But the SEA Games is a regional arena, where a women's 1,500m gold can sit several dozen seconds slower than the Olympic standard. That gap is not shameful. It simply deserves to be measured.

The next layer of data is the personal best curve. I set up a year axis and plot the best mark of each year. A healthy curve climbs steadily, with plateaus caused by injury or training load. A one-year jump three times the historical annual gain is a signal that deserves scrutiny, not to accuse anyone, but to ask what happened that year.

In Vietnam we have no curve. We have scattered points, and most of them live in a coach's memory rather than in any data file. That costs anti-doping work its strongest tool: an athlete biological passport only functions when a long-term series exists to compare against.

Age structure matters just as much. In middle and long distance events, peak form usually arrives between 26 and 31. A 19-year-old running well says nothing about her at 28. To judge a generation, you need at least five adjacent age cohorts measured together.

I have a working habit my younger colleagues find funny: after every meet I call a few female athletes and ask not about medals, only about money. Food, lodging, travel, shoes, medicine, and the extra income they must earn outside training hours. I am old, but every call from them makes me young again. Every call also reminds me that a results table without a cost column is not yet a results table.

Who benefits from their sweat? That question has to be answered with numbers, not slogans.

Here I want to say something against the crowd. The target our sports administration sets for itself is the SEA Games gold count. It is easy to measure, easy to report, easy to celebrate. But that very target is quietly turning a regional arena into a destination instead of a springboard. When regional marks are the final yardstick, nobody has an incentive to build a table against the Olympic standard, because that table contains only negative numbers.

The fault is not with the athletes. Nguyen Thi Oanh running four events at one SEA Games is a workload few international competitors would accept. She did it because the team needed medals, and because nobody was there to share the load. A healthy system would split those four events across four athletes, each with her own curve, her own injury plan, her own route to continental competition.

What we lack is not talent. What we lack is recording infrastructure. And recording infrastructure costs far less than one overseas training placement. An open data file, updated at every meet, with athlete identifiers and competition-condition parameters, costs less than what a delegation spends on airfare in a single season.

A mature athletics nation is not measured by the medals in the vault, but by the years of data in the archive. When a fifteen-year-old girl in Bac Giang steps onto the track, her mark today must become the first point on a curve that someone, somewhere, is responsible for keeping. The field taught me this: some lessons are never rejected.

If tomorrow the athletics administration opened a public, complete data file covering every athlete from provincial level upward, the Olympic equation would look very different. But the real question sits elsewhere: which of us is afraid of what that file would show?