The Speed Race of World Badminton: Feet, Data, and Undervalued Contracts

Late one June evening, I sat in front of a screen with my notebook open, rewinding a rally at the left corner of the court in slow motion. On the frame, a young player's feet moved back and forth like a sewing needle, each step taking less than a quarter of a second. I paused, counted, wrote it down: seven steps in a second and a half, the total distance shorter than the length of a racket. My fifteen-year-old nephew, training at a neighborhood club, blurted out: How is that so fast. I did not answer right away. I still remember the feeling in London in 2026, sitting in a small studio, counting an athlete's footsteps frame by frame, and realizing that sport, whether it is running on a track or moving on a badminton court, tells the same story about speed.

That story is being rewritten, and rewritten faster than most people think. For more than a decade, I have followed the World Badminton Federation tournaments from the stands, from press rooms, and increasingly from a small room in Shanghai, where I rewind hundreds of hours of footage. What I see is not harder smashes, but feet that move differently. That is why I am writing this: not to praise speed, but to read speed as a trace of courage and of undervalued decisions.

The context of this season is an unprecedented schedule density. World Tour events follow one another with almost no break, from East Asia to Europe and back to Asia within weeks. For a top player, a year can include more than twenty tournament weeks, not counting team events such as the Thomas, Uber and Sudirman Cups, plus domestic leagues. That calendar turns physical capacity into a currency, and turns recovery into a genuine competitive skill.

This season is also a season of changes on the sidelines. National teams are adjusting coaching staff, sports centers are re-signing strength and conditioning specialists, and some players are moving abroad to train under a semi-professional model. These moves get less attention than a final, but they decide the final. When a player changes conditioning staff, results usually appear after six months; when a national team changes how it scores training, results appear after a season. This is the submerged part of the iceberg.

In my notebook, the most important column is not the score, but the number of footsteps per rally. For a world-class men's singles player, I usually count six to nine steps in a three-second rally, a frequency of roughly two to three steps per second. That sounds slower than the 4.8 steps per second I once counted in a sprinter, but it is a different kind of speed: not running straight, but accelerating, braking, changing direction, and accelerating again. It is a problem of acceleration, not of maximum velocity.

When I rewatch matches of Lee Chong Wei, the Malaysian who held the world number one ranking for years, what strikes me is not his smash but the way he places his feet. His feet are almost always in position before the shuttle arrives, which makes me think that a player's top speed lies not in muscle but in anticipation. He moves a beat earlier than his opponent, and because of that, he gains one extra beat to make a decision.

What I have learned after years of counting footsteps is this: speed in badminton is not about the peak, but about the ability to return to the peak a second, third, fourth time within the same rally. A player may reach a high maximum velocity, but if it takes half a second to recover position after each shot, that speed becomes meaningless. Conversely, a player with a modest maximum velocity who cuts recovery time to a third of a second will always be in front of the shuttle.

This is where my athletics memory becomes useful. At the 2026 World Cup, when the whole world chanted that a young footballer was faster than the sprint legend, I sat down with the numbers. The maximum speed recorded by the tracking system for that player was 32.4 km/h. The average speed of the sprint legend in the 9.58-second world record was 37.6 km/h. That player is fast, but he is fast over a short distance, in a live-ball situation, and that is entirely different from sustaining speed over one hundred meters. Mbappe showed me that speed does not measure distance, it measures courage, the courage to break away at the exact moment others hesitate.

In badminton, a similar mistake happens whenever a player produces a smash measured at extreme speed. Tan Boon Heong, the Malaysian doubles player, was once credited with a 493 km/h smash under special measurement conditions, and that number quickly became a legend on billboards. But racket-head speed at the point of contact lasts only about a thousandth of a second. What decides the point is not the maximum speed of the smash, but the time the opponent has to react, plus the opponent's position before the smash is struck. A 400 km/h smash into the opponent's racket will be blocked more easily than a 330 km/h smash placed into an empty corner.

I verified this by rewatching hundreds of rallies. When a player attacks from a position where the opponent has already read the direction, the win rate for the rally drops sharply, regardless of smash speed. When that player changes rhythm, slowing down one beat before the decisive shot, the win rate rises. This is the most beautiful paradox of the sport: sometimes, to be faster, you have to slow down.

In data terms, I divide badminton speed into three layers. The first is reaction speed, measured as the time from the opponent's contact with the shuttle to the moment the player begins to move; at world-class level, this is usually under 0.2 seconds. The second is movement speed, measured by steps and distance within a rally. The third is decision speed, measured by how many times a player changes intent within the same rally. The third layer is the hardest to measure and also the most decisive.

There is another factor that data often ignores: reach. Viktor Axelsen, the Danish player who stands 1.94 meters and has won Olympic gold, can reach shuttles that a shorter player needs two extra steps to touch. Long reach does not only save energy, it also buys time, and time is the true currency of this sport. When I compare players of similar height, the gap in steps per rally is usually smaller than the gap between different height groups. This is something youth academies often overlook when selecting talent.

The way top teams measure these three layers of speed has changed considerably in a few years. High-speed cameras and motion-tracking software now exist in many training centers, allowing a rally to be split into hundreds of frames and assigned a coordinate each. But data is only valuable when someone knows how to read it. I once sat beside a conditioning coach and heard a sentence I wrote down verbatim: a machine can measure the leg, it cannot measure the gut. It means a machine can tell you a player runs 0.1 seconds slower than last season, but it cannot tell you why that player still wins more.

When I interview conditioning experts, one recurring theme is the price of a movement style built on continuous acceleration. Every hard brake followed by a push-off means the knee and ankle absorb a force many times body weight. Multiply that by thousands of repetitions each week, and you get a form of wear no smash can produce. That is why top teams increasingly invest in recovery, sleep and training-load control, not just raw speed. The paradox is that to run faster in the long term, you have to train less in the short term.

Data does not lie, it only says what people do not want to hear. For years, people priced players by trophies and by photogenic smashes. But when I cross-checked results tables against recovery indicators and steps per rally, a pattern appeared: the most durable players are usually not those with the highest maximum speed, but those with the smallest gap between their maximum and average speed across a match.

Kento Momota, the Japanese player who won two world titles, is an example that makes me think a great deal. Before the events that forced him to rebuild his career, his game was not built on peak speed, but on the ability to hold rhythm and force opponents to move more. When his physical capacity declined, he lost his most important weapon, and that reminds me that average speed is the foundation, while peak speed is only the visible part.

An empty stadium still echoes with applause, from walls that have witnessed too much. The seasons without spectators taught me something data cannot teach: that speed is a decision, not merely a capacity. When there is no crowd to cheer, a player must create their own rhythm. And that rhythm is often built from the living room, from solitary sessions, from footsteps no one counts.

This is where I want to place a different view, contrary to popular intuition. While the whole badminton world races toward early specialization and optimizing every indicator, I believe it is diversity that is the most undervalued competitive advantage. A player who trains only badminton from age six can reach very high specialized speed, but often lacks a movement vocabulary to rebuild technique as the body ages or when injury forces a change in movement mechanics.

Looking at other sports, this pattern repeats. The world's top sprinters often arrive on the track later than people assume, after playing football, basketball or combat sports. A diverse movement background gives them a bank of skills to draw on when needed. In badminton, the same holds for players who played multiple sports before turning professional. When an opponent locks down one shot, they have more options to escape.

The second counter-intuitive view concerns the transfer market. This season, the noise around contracts and coaching changes is louder than ever, but most of that noise does not match real value. A contract announced with an impressive figure often hides a complex structure: performance-based pay, termination clauses, and an actual term far shorter than the headline number. Every figure on the transfer board was once an unpriced dream.

What stands out is that teams are investing in conditioning coaches and analysts more than in established stars. It is a quiet but meaningful shift: value is flowing from the spotlight toward the coaching bench. In the next ten years, I believe the greatest competitive advantage of a badminton team will not be owning the best player, but building the best support system around that player.

As someone who has followed this sport for many years, I believe the current speed race will not end with the fastest player. It will end with a generation of players who understand that speed is a language, and that language only means something when it is used to tell a story, the story of daring to change rhythm, daring to push forward, daring to slow down at the right moment. I came to athletics with my feet, but I stayed for the stories; and badminton, to me, is telling stories like that too, only one beat faster.

Speed Notes.