An Se-young: When Defence Becomes the Weapon That Breaks Records

In the Denmark Open final in Odense, the third game reached its decisive phase at 9-12 in favour of Akane Yamaguchi. On the coaching bench, nobody spoke. On court, An Se-young bent down and touched her right ankle once more. A reporter who once stood outside a windowless press room in Seoul ten years ago would recognise that gesture immediately: it was not a sign of collapse, but the trigger of a conversion mechanism. Seven straight points followed. An reclaimed the momentum and closed the third game 21-18. This was not the first time. In the second game, from 11-13 down, she also won seven consecutive points to finish 21-14. Two identical scoring runs in a single final are not luck. They are a system. The context of this match lies beyond the scoreline. The Denmark Open took place on 18 October, immediately before the French Open begins on 20 October. This is the compressed phase of the international calendar, when top players move continuously between Super 750 and Super 1000 events with only one or two days of rest. The title in Odense is not merely another trophy for An's collection; it is a test of how the body operates under a dense schedule. According to BWF data, this is the tenth title of the Korean player's season, equalling the all-time record set by Susi Susanti in 2026. She now stands on the verge of surpassing that number if she wins the French Open just days later. But to understand why this record is arriving, one must look at the structure of her game, not the trophy list. An operates a defensive counter-attacking system — absorb, survive, counter-run — that is nearly extinct at the top of contemporary women's singles. While most leading female players have shifted to an early-attack model, scoring within the first three shots, An stands on the opposite side: she extends rallies, absorbs pressure, and only converts when the opponent has spent enough energy to expose a gap. This is the most physically expensive way to win a three-game final. In the first game, An led 18-15 and lost 21-23. This is her clearest tactical blind spot of the entire match. When she controls the game, she tends to ease off, waiting for the opponent to err rather than finishing the job herself. Against a top-tier attacker like Yamaguchi, that easing is enough to reverse the momentum. The pattern repeats in big matches: An controls, then lets the opponent back in during the closing phase. It is not purely a psychological issue. It is the consequence of a playing philosophy that prioritises safety over decisiveness. What is more noteworthy lies in the third game. Trailing 12-9, An began adjusting her movement. She did not change her serve placement, her tempo, or her shot selection. She changed how her body operated in space. This detail matters because it shows that the battle between her and Yamaguchi in the third game was not a tactical chess match but a load-management problem. Her right ankle hurt, she touched it repeatedly, and she kept defending. The seven straight points that followed came from maintaining the defensive wall while Yamaguchi began to lose structure. This is the key point that conventional reports miss: An's victory over Yamaguchi is no longer a form fluctuation. It has become a structural counter. Five consecutive final wins over Yamaguchi, along with a ten-match winning streak reported by the BWF, show that the Japanese player has no tactical answer to this defensive wall. Yamaguchi's speed game generates points but cannot sustain intensity across a 21-point arc against an opponent who keeps returning the fourth and fifth shots. This is a problem for the Japanese coaching staff more than for Yamaguchi herself. They keep selecting the same attacking plan against an opponent who has proven it does not work. I have watched many of An Se-young's matches since the Tokyo Olympics, and what stands out is not the number of titles but how she allocates energy across each tournament. She does not win by overwhelming. She wins by making opponents lose to themselves. That is why she can sustain such a long title run in a brutal calendar: her style, though physically expensive, is decision-economical. She does not need to produce the best shot. She only needs to return one more than her opponent. But there is a paradox here. The very style that economises decisions taxes the body the most. Every extended rally is another load on the ankle, knee and hip. A record of ten titles in a season, and possibly eleven, means she has played more three-game finals than anyone. The question is not whether she can surpass Susi Susanti. The question is how the physical cost of that record is accumulating, and who is monitoring it. In the injury-risk model I once built for players exceeding 2,500 minutes in twelve months, the risk of muscle injury increases 3.2-fold. An is in that threshold zone. She touched her right ankle in the third game in Odense. She still won. But injury does not arrive late; only confirmation does. The question for the Korean coaching staff is not how to secure one more title, but how to keep her on court in August next year, when the Asian Games take place in Aichi-Nagoya. There is a small detail in the final I cannot overlook. After winning the last point, An did not scream. She simply stood there, breathing, and looked at the scoreboard for a long moment. It is the reaction of someone accustomed to winning by endurance. And at the elite level, people do not fear the hardest hitter. They fear the one who can endure longest. Because that person does not need to beat you with a shot. They only need to wait for you to beat yourself. Susi Susanti's record stood for thirty years because it was built on a different style in a different era. If An breaks it, people will talk about the number of titles. But the true value of that moment lies elsewhere: a player has proven that in the era of smash speed and relentless attacking pressure, defence can still be the language of victory. And sometimes, the only way forward is to stand still long enough that the opponent must retreat first.