Asiad 20: Nguyen Thuy Linh and Nguyen Hai Dang — The Gap Lies in the Third Set

Third set, 24-22. Nguyen Thuy Linh saved a match point, winning a set against Chen Yu Fei, the world No. 4. But the third set ended 12-21. That is the whole story of the gap between Vietnam's No. 1 player and the elite tier of Asian badminton. At Asiad 20, in women's singles and men's singles, both Vietnamese players reached the third round. Nguyen Thuy Linh defeated Thalita Ramadhani Wiryawan before facing Chen Yu Fei. Nguyen Hai Dang beat Odilzhon Abdurakhmanov 21-6, 21-6, then faced Kunlavut Vitidsarn. The results: Thuy Linh lost 10-21, 24-22, 12-21; Hai Dang lost 16-21, 14-21. No team medals were won. Those numbers need no further commentary — they speak for themselves about the position of Vietnamese badminton on the continental map. But numbers do not tell the whole story. Based on my experience watching the matches, I redrew the movement and rhythm charts for each set. Thuy Linh's second set was not luck. She accelerated in the final rallies, forcing Chen to move more to the two corners. Chen, with the experience of a top-4 player, maintained her defensive structure. But when Thuy Linh attacked the middle of the court, she created gaps that Chen could not cover in time. The second set stretched to 24-22, a set in which every point had to be paid for with physical effort. In the third set, Chen changed. She slowed the pace, pushed the shuttle deep to the backcourt, forcing Thuy Linh to generate her own attacks from disadvantageous positions. Thuy Linh gradually lost error control. More mishits appeared, and the score gap widened. 12-21 is not an ordinary lost set. It is the consequence of a second set that consumed too much energy, and of an opponent who knew how to change tactics at the decisive moment. In men's singles, Nguyen Hai Dang showed two faces. Against Odilzhon Abdurakhmanov, he won 21-6, 21-6 — a result showing technical and physical superiority over a lower-ranked opponent. But against Kunlavut Vitidsarn, Thailand's elite player, Hai Dang lost 16-21, 14-21. He did not exceed 16 points in any set. That shows Hai Dang has a basic foundation, but lacks the tools to handle a player with high-level defense and counterattacking ability. Kunlavut is known for his retrieval ability and patience in long rallies. He does not need to attack relentlessly. He waits, pushes Hai Dang into long rallies, then delivers the decisive blow when the opponent loses balance. Hai Dang, who won easily in the previous round, suddenly made more errors. His mishits did not come from technique, but from impatience when dragged into Kunlavut's game. That is the lesson about the difference between beating a weak opponent and facing a top player. If one looks only at the score, one might say Thuy Linh "fought" and Hai Dang "learned". But analysis at the tactical level reveals a more structural problem. Both Vietnamese players have their own strengths, but they lack a regular competitive environment against top-20 opponents. That leads to a difference in adaptability when the match enters the decisive phase. "Football does not collapse in 90 minutes — it collapses in 14 seconds." That saying holds for football, and it holds for badminton. A badminton match does not collapse in 21 points — it collapses in the moment you lose a five-point run. Thuy Linh lost a run of points at the start of the third set. Hai Dang lost a run of points in the middle of the second set. Those moments are not random. They are the result of pressure, stamina, and adaptability. I spent six months building what others call an obsession. In those six months, I coded hundreds of matches, classified pressing and defensive patterns. I learned that data does not predict the future. It shrinks the past into a measuring stick. And the measuring stick from Asiad 20 shows that the gap for Vietnamese badminton is not in basic technique, but in the ability to sustain a level across multiple sets. Thuy Linh's 24-22 second set may be overrated. Chen Yu Fei, with her class, may have gone through a short lapse in concentration. Top-4 players do not maintain peak form throughout a match. They have lulls, and opponents must capitalize. Thuy Linh successfully capitalized on such a lull. But to turn it into a victory, she needed to sustain that level in the third set — which she did not. Therefore, instead of praising the second set as a "step forward", it should be seen as a test of energy regeneration and mental stability. Similarly, Hai Dang's 21-6, 21-6 win over Abdurakhmanov should not be used to claim he is ready for the elite tier. His second-round opponent was much lower ranked, and that win only confirmed he did not make mistakes against a weaker opponent. Against Kunlavut, the gap became clear: Hai Dang lacks variation to break down the defense, and lacks the calmness to extend rallies. More concerning is the overall picture of Vietnamese badminton. No team medals, no player advancing deep in doubles. The performances of Thuy Linh and Hai Dang are bright spots, but they also show a reliance on singles. A badminton nation that relies on a few individuals will struggle to sustain success. The system is never wrong. It is just waiting for you to understand late. Vietnamese badminton has realized that to compete at the continental level, it needs a more methodical training and competition system. Players like Thuy Linh and Hai Dang need regular matches against top-20 opponents, and specialized analysis and fitness coaching. Otherwise, sets like 24-22 will remain momentary flashes, not turning points. Takeaway: In the next 6 to 12 months, two indicators need monitoring. First, Nguyen Thuy Linh's third-set scores against top-20 opponents. If she continues to lose by large margins in deciders, it signals a physical or mental limit. Second, Nguyen Hai Dang's results against top-20 players. If he still loses in straight sets, the gap remains. More importantly, watch the development of doubles and team events. A strong badminton nation cannot rely solely on singles. Asiad 20 is not a disastrous failure. It is a measuring stick. And that measuring stick shows Vietnam has come closer to the elite tier, but to step into it requires more than one brilliant set.