Binh Duong Pressing in the Pool: From the 0.68 Figure to the Math of Rebuilding from the Rubble

There is a pressure that no one sees, but every team fears. I named it: Binh Duong pressing. In 2026, while sitting in Becamex Binh Duong's analysis department, I spent three full months scrutinizing every meter of water in 26 V-League rounds. The result startled me: the team's average PPDA was 8.4 – the lowest in the league. They allowed opponents only 8.4 passes before pressing. Binh Duong's xGA was 0.68 per match, keeping 14 clean sheets. I wrote the article 'Binh Duong pressing – a style that doesn't need much possession' with 17 data charts. It surpassed 250,000 reads. But today, I am not writing about football. I am writing about swimming. And I realize something strange: what I called 'Binh Duong pressing' is fully present in Vietnamese swimming. Because Vietnamese swimming is also facing a life-or-death question: When data says we are improving, but reality on the victory podium does not reflect that, what are we looking at? I started following swimming in 2026, when I was still a reporter for Thanh Nien Newspaper. At that time, I recorded every achievement of Vietnamese swimmers by hand, without analysis software, without tracking tables. Only a stopwatch and my eyes. But that harsh early period forged a habit in me: never trust a number without verifying at least three sources. Today, sitting before the data table of the Vietnamese swimming team preparing for SEA Games 32, I see an anomaly that no one noticed. Let me be clear. SEA Games 32 was held in Cambodia, May 2026. Vietnam sent 10 athletes to compete. Result: 2 gold medals, 1 silver medal, 3 bronze medals. A total of 6 medals. This number is not bad. But it is not good either. Compared to SEA Games 31 in Vietnam in 2026, where the team won 4 gold, 8 silver, and 6 bronze medals, this is a clear decline. Gold dropped 50%, total medals fell from 18 to 6. If we look at the surface, this is a failure. Sports managers will say we need more investment, more selection, more foreign experts. But I am not writing to repeat those clichés. I look at the data in more detail. In the men's 1,500m freestyle, Nguyen Huy Hoang – the athlete who won gold at SEA Games 31 in this event – failed to defend his title. He finished with 15 minutes 28.14 seconds, 12.08 seconds slower than his 15:16.06 at SEA Games 31. In the 800m freestyle, Hoang also failed to repeat his feat, finishing only third. This is the anomaly I hunt for. A 23-year-old athlete, at the peak of his career, yet his performance regressed. Not due to injury – Hoang confirmed no serious physical issues. Not due to lack of investment – he still trained in Hungary under a long-term cooperation program. So where does the problem lie? I cross-referenced three data sources: official SEA Games 32 results, Hoang's personal best table published by the Vietnam Aquatic Sports Association, and tracking data from training sessions in Hungary that I collected through my connections. The result made me rethink. In training sessions in Hungary, Hoang swam 1,500m at an average pace of 1 minute 3 seconds per 100m, equivalent to a 15:45 time. But in short sprint sessions, he maintained the first 50m at 26.5 seconds – an impressive figure. That means, physically, Hoang is still very strong. So why did his competition performance drop? I looked at the split data of the 1,500m race at SEA Games 32. First 500m: Hoang swam at 1 minute 1 second per 100m – very fast, faster than planned. Next 1,000m: pace gradually slowed, dropping to 1 minute 3.5 seconds per 100m. From 1,200m to 1,400m: pace fell to 1 minute 5.2 seconds per 100m. Final 500m: Hoang tried to accelerate but only managed 1 minute 4.8 seconds per 100m. This is an unreasonable pace distribution model. Hoang started too fast, couldn't maintain it, and finished exhausted. I call this the 'disease of swimming too fast in the first 500m.' And this disease is not exclusive to Hoang. Look at other events. In the men's 200m freestyle, Tran Hung Nguyen – a 20-year-old athlete expected to replace Hoang in the future – made the same mistake. He swam the first 100m at 56.8 seconds, 1 second faster than planned, and paid the price with the final 100m at only 1 minute 0.2 seconds. Result: finished fourth, no medal. This is not a physical issue. This is a tactical issue. And tactics are what Vietnamese sports managers often overlook when talking about swimming. I remember the 2026 World Cup, when I built an xG prediction model from 180,000 shots across 5 European leagues. I correctly predicted 14/16 knockout-round matches. When I wrote that Croatia had 'low xG but high efficiency thanks to 23 sprints above 25 km/h per match,' many fans criticized it as dry. I countered with a 5,000-word article, holding my data stance. But afterward, I realized something I didn't say in that article: data cannot replace the irrationality of humans. Croatia may have had low xG, but they had Luka Modric – someone whose match-reading ability no model can measure. Swimming is the same. We can measure everything: speed, stroke rate, propulsion efficiency, breathing count. But we cannot measure what I call 'competitive composure' – the ability to stick to tactics when your body is screaming to slow down. And this is the blind spot of Vietnamese swimming. We invest heavily in physical conditioning, technique, nutrition. But we invest almost nothing in race tactics. Look at Thailand, our biggest rival in the region. At SEA Games 32, Thailand won 11 gold medals in swimming. They don't have any athlete physically superior to ours. But they have a very systematic tactical analysis framework. I once had a conversation with a Thai coach at the 2026 Asian Swimming Championships. He showed me a data table about Vietnamese athletes: start speed, turn speed, final 50m efficiency. They knew exactly the strengths and weaknesses of each person. They knew that Hoang often swims too fast in the first 500m. And they exploited that. This is 'Binh Duong pressing' in swimming. An invisible pressure that no one sees, but every opponent fears. It is the pressure of data, of thorough preparation, of knowing what the opponent will do before they do it. And we are lacking that. I am not saying we should copy Thailand's model. Each country has its own characteristics. But we need to face a truth: in 20 years, Vietnamese swimming has improved greatly in physical conditioning and technique, but has remained almost stagnant in tactics. Look at history. In 2026, when I was still a reporter, Vietnam's top swimmer was Nguyen Huu Viet. He won gold at SEA Games 22 in the 200m breaststroke with a time of 2 minutes 15.89 seconds. That was a feat at the time. But if you look closely, Nguyen Huu Viet also made the same tactical mistake as Nguyen Huy Hoang today: swimming too fast in the first half, slowing down in the second half. He won because of superior physical conditioning, not smart tactics. 20 years later, we are still winning because of physical conditioning. And when physical conditioning is no longer superior, we lose. This is a loop we cannot escape unless we change our approach. I remember the 2026 pandemic. When the Bundesliga returned with 312 matches behind closed doors, I treated it as a massive laboratory. I discovered home advantage dropped from 54% to 47%, home teams' PPDA increased by 0.9. The article 'Empty Stadium, Changed Game' reached 180,000 reads and was consulted by a Premier League club. I realized that crisis is the opportunity to rebuild every old assumption. And Vietnamese swimming is facing a similar opportunity. SEA Games 32 was a failure. But it is a failure with data, with analysis, with lessons to learn. We know exactly where the problem lies: pace distribution tactics. The question is: are we brave enough to change? I am not talking about changing the entire system. I am talking about small changes with big impacts. For example: incorporating pace distribution tactics into training curricula. Teaching athletes how to read race tempo, how to conserve energy for the final 500m, how to adjust speed based on each opponent. This is nothing too sophisticated. Top swimming teams worldwide have been doing this for decades. But in Vietnam, we are still training the 'swim as fast as possible from start to finish' way. And when opponents are smarter, we lose. I remember Euro 2026, when I wrote a 12-part series about Italy. I pointed out their midfield covered 4,200 km after the group stage, PPDA 7.6. I dared to predict Italy would win from the quarterfinals – against the majority. When Italy won, many called me a genius. But I knew I wasn't a genius. I just read the data more carefully. Vietnamese swimming also needs people who read data more carefully. Not those who only look at the medal table and say 'we need more investment.' But those who look at every 50m split, every stroke rate, every breath, and ask: why are we slow in the final 500m? I believe the answer lies in tactics, not physical conditioning. And I am willing to bet on that. Look at Nguyen Thi Anh Vien – the greatest athlete in Vietnamese swimming history. She won 25 SEA Games gold medals in her career. But if you look closely, Anh Vien also had a weakness: she often swam slower on the return laps than the outward laps. In the 400m freestyle at SEA Games 31, Anh Vien swam the first 200m at 2 minutes 5 seconds, the final 200m at 2 minutes 12 seconds. A 7-second difference – a huge number. But Anh Vien still won because she was physically superior. When her physical conditioning declined after retirement, no one replaced her. And this is the core problem: we are building a foundation based on exceptional individuals, not on systems. When Nguyen Thi Anh Vien retired, Vietnamese swimming lost a golden generation. When Nguyen Huy Hoang is no longer at his peak, we have no replacement. This is a chronic disease of Vietnamese sports, not just swimming. I witnessed this in football. When the 2026 U23 generation – Quang Hai, Cong Phuong, Xuan Truong – left their peak, the national team struggled to find replacements. We failed to build a sustainable youth development system. Swimming is the same. But I am not pessimistic. I see positive signals. Tran Hung Nguyen, despite his failure at SEA Games 32, is still a great talent. He is 20, has good physical conditioning, decent technique. He only lacks tactics. If trained properly, he can become a pillar of the team for the next 10 years. And I believe building a data analysis system for swimming is entirely feasible. We have technology, experts, resources. We only lack determination. I remember 2026, when I started building an xG model for Vietnamese football. Many laughed. They said Vietnamese football doesn't need data, only 'grit' and 'spirit.' But after the 2026 World Cup, when my model correctly predicted 14/16 knockout matches, they started listening. Swimming will be the same. It just needs one person brave enough to start. I am ready to be that person. But I cannot do it alone. I need cooperation from the Vietnam Aquatic Sports Association, from training centers, from coaches. I need them to believe that data is not the enemy of intuition, but a tool to make intuition more accurate. Numbers cannot lie, but people always find ways to deceive numbers. And I have learned to see through those deceptions. Look at Nguyen Huy Hoang's performance at SEA Games 32. 15 minutes 28.14 seconds. Without split data, we would think he lost because the opponent was too strong. But the data says he lost because of himself – because of his unreasonable pace distribution. This is a hard truth. But it is the truth. And I believe Nguyen Huy Hoang, a professional athlete, will have enough courage to face this truth. I once treated models as scripture. Now they are just a compass – but without them, we get lost. Vietnamese swimming is lost. But not because of a missing compass. Because we refuse to look at the compass. It's time to change. I do not promise that applying data analysis will immediately help us win 10 SEA Games gold medals. That takes time. But I promise that if we start today, in 5 years, we will see the difference. And I am willing to take responsibility for that promise. Because I have done it in football. I built the 'Binh Duong pressing' model from zero, and it became a brand. I can do the same for swimming. The only question is: are we brave enough to start? Reputation is just a name. What remains is always how you read the game. And I am reading the game of Vietnamese swimming very clearly. That game is unfolding not only at SEA Games, but also in training centers, in practice sessions, in the small daily decisions. And I want to be the one who rewrites that story. Not with flowery words, but with numbers, with analysis, with carefully calculated tactics. Because ultimately, sports is not a place for fanciful dreams. Sports is a place for those who know how to turn dreams into reality through effort and intellect. And I believe Vietnamese swimming has both. We just need a push. I hope this article will be that push.