The Data Gap in Vietnamese Women's Athletics During the Annual Season

From the fourth row of the Lạch Tray stand, I noted the starting time of the women's 400m. My watch ran. The organisers' watch ran too. When the athlete crossed the line, the result sheet pinned to the board carried exactly one line: name, club, time. No wind reading, no 200m split, no note on shoe type. She had taken nearly a second off her personal best, bent down to unlace her spikes, and walked off the track with nobody asking a further question. I stayed ten more minutes, the habit I formed on an afternoon at the 2026 World Cup, when I saw former midfielder Trần Thị Lan sitting alone in a small coffee shop, watching football in silence. Since that day I stopped writing to a scoreline. I write to what is left after the scoreline has been recorded. And in that notebook there is a line I have copied many times: The ball rolls past fate, and I chose to stand still and watch it. This time what I was watching was not a winning or losing moment, but an empty space.

The annual season has one feature that championship tournaments do not: it awards no medals, so it produces no data either. The SEA Games publishes official results sheets, athlete profiles, press releases. An open national athletics meet held in March usually stops at the final result. I have followed the domestic circuit for seven years, keeping notes, and what I have learned is this: the closer you get to the women's side of the sport, the less data survives.

The technical consequences are concrete. Without splits, an analyst cannot tell whether a 400m runner used a negative or positive race pattern. Without a wind reading, a strong mark recorded in helpful conditions is treated as true ability. Without equipment notes, the contribution of carbon-plated shoes is never deducted from an assessment of capacity. Those three variables, added together, are enough to distort every conclusion about a person.

In 2026 I signed a contract to write the biography of young midfielder Đỗ Thị Hương, nineteen years old, seven goals in fifteen matches for the national youth team. The contract was signed in February. By June the partner withdrew because of the pandemic. When the contract collapsed, the dream did not collapse with it — it simply changed its route. I went back to writing twelve short biographies on a personal blog, and realised that what I lacked was not inspiration but records. I had Hương's story, but not a single line of data to compare her against her own previous season.

At Tokyo 2026 I followed weightlifter Nguyễn Thị Thanh, 59kg class. She failed on her final clean and jerk and set a personal best of 112kg. In the changing room she cried, then smiled, looking up at the board showing her own record. That day I understood: an athlete can read herself when she has a number. Without a number she has only memory, and memory cannot be verified by anyone.

If you rebuild a standard assessment framework for any female athlete in the current annual season, almost every cell is empty. This season's performance against personal best: empty. Qualifying status: empty. Seasonal ranking: empty. Value adjustment for competition conditions: empty. Not because the athlete lacks ability, but because the recording system does not produce that data.

What we do have is far rougher. We have the final finishing time. We have the placing. We have a few photographs. From those three raw materials, the media builds the entire story of women's sport, and calls it coverage.

Three traps appear the moment anyone tries to read too much from one line of results. The first is a wind-assisted or fast-track mark being treated as true ability. The second is an uncorrected equipment dividend, so that a technological step forward is recorded as a physical one. The third is a sample that is far too small: one good race does not represent a stable level, but in a data-poor sport one good race immediately becomes the definition of that person.

The greatest blind spot lies here: women's sport is being measured by a system built to measure men's sport, and then judged to be less developed. When a men's event is streamed live, with splits, sensors and an analytics team, while a women's event of the same tier has only a results sheet taped to a wall, the distance is created not on the track but in the archive.

In athletics, missing splits distort judgements about how effort was distributed. In women's football, missing running and passing data pushes people to evaluate midfielders by goals scored, an indicator that depends on team-mates. Trần Thị Lan won 54 caps for the Vietnam women's national team and scored 12 goals. That information sits in a file. But the number of passes that opened a chance, the number of recoveries in midfield, the number of times she held the ball so a team-mate could push up — none of it sits anywhere. We lost it.

Trần Thị Hồng, the goalkeeper who saved three penalties in the 2026 SEA Games final, is an exception, because that win was large enough to generate its own record. Most careers in women's sport contain no moment large enough for the system to record automatically. They play matches in which nobody scores, and I write biographies, but what I am really doing is preserving the matches in which nobody scored.

The sports media, myself included, tends to argue that women's sport needs more investment. That argument is right but it misses the centre of gravity. The immediate problem is record-keeping, before it is money. A competition does not need a large budget to log a wind reading, to publish a 200m split, to note the type of shoe. Those things cost a few hours of labour and a spreadsheet.

We should also revisit how we treat athletes returning from injury. The public habit is to wait for a comeback performance in order to judge whether that athlete deserves their place. That demand is cruel, because it pushes someone who has just left the treatment room into a position where they must prove themselves before the body is ready, and that pressure itself raises the risk of re-injury. Without training-load data and recovery data, people are left judging by results. Judging by results immediately after injury is the surest way to reach the wrong conclusion about an athlete.

Commercially the paradox is even clearer. A brand sponsoring women's sport needs numbers to justify the spend. When there are no numbers, they latch onto emotion, and emotion only sells for two weeks after a medal. Competitive value lasts the whole season, except that it is invisible to the people paying the bills. She does not need a medal to prove she has won. But the person paying her salary needs a number.

Women's sport does not need to be rescued, it needs to be recognised. That recognition starts with the smallest acts: record the number before telling the story, publish the split before analysing the tactics, keep the file before waiting for a medal.

This season is still long, and I will be back in the fourth row with my notebook. What I can do is not large. But if by the end of the season I hold a complete split sheet for one women's 400m race, then next year the person in that same row will not have to wonder where that athlete began her kick.