Elite Table Tennis and the Data Problem: When the Scoreboard Does Not Tell the Whole Story of a Match

There is a moment in elite table tennis that I always return to, not because it was beautiful, but because it exposed something the scoreboard had hidden for forty minutes beforehand. It was a rally that ended with a cross-court forehand loop, the sound of the ball bouncing on the table dry and crisp, and the umpire awarding the point. The crowd erupted. But if you rewind and count every footwork beat, every shift of the centre of gravity, every degree of spin as the ball left the racket, you realise that point was not created in the final stroke. It was created by the third serve of the set, at a moment no one in the arena still remembers. I mention this not to show off a sharp eye. When the arena falls silent, data becomes the only echo left behind, and in table tennis that echo often tells a story completely different from the 11-9 glowing on the electronic board.

I entered the world of sports analysis very early, and the first habit I formed was note-taking. Not scores — everyone has scores. I recorded what ordinary viewers overlook: the spin angle of a serve, the height of the racket's contact point when the opponent returns a serve, the gap a player exposes after stepping into an attacking stance. Years later, when I sat analysing data for teams in Seoul, I realised that table tennis and football share the same core paradox: the final result is the loudest thing but also the least talkative thing about how a match was actually decided.

This article is not meant to praise any player, nor to predict who will win the next tournament. I want to do something else: place elite table tennis on the data operating table and show that behind every stroke that seems purely instinctive lies a system of decisions full of tactical, psychological, and even physiological calculation. Every number I read is a confession the match does not speak aloud.

To make this clear, I will move through nine different layers of analysis — from technique, tactics, and equipment to the tournament system, the international competitive landscape, governance, the talent pipeline, the risk surface, the public narrative, and finally the transmission across the whole industry. My goal is not to offer absolute conclusions but to point out the blind spots that emotional analysis has left behind. For in a sport where each set lasts only minutes and each point is decided by decisions measured in milliseconds, looking only at the scoreboard is intellectual laziness.

Context: Why analysing table tennis is harder than you think

If you have ever heard someone say table tennis is a simple sport because the table is small and the racket is light, that person has never tried to count how many decisions a professional player must process in a single second. A professional serve takes less than a second from leaving the server's hand to touching the opposite side of the table, and within that window the opponent must read the spin, read the direction, choose their footwork, and decide on the return. At the highest level, this reaction window usually falls between two hundred and three hundred milliseconds — thinner than a blink.

What makes analysing table tennis especially difficult is speed. In football, you can watch a passage of play from multiple camera angles and analyse it for minutes. In table tennis, a point unfolds so fast that even automated tracking systems frequently miss details. That is why, for many years, table tennis analysis relied mainly on the coach's eye and the experience of former players. Both sources are valuable, but both share the same weakness: they are subjective and cannot be measured consistently.

The data method I pursue tries to fill that gap. Instead of only asking "who won," we ask "why they won" and "how sustainable that victory is." We break a match into measurable metrics: point-win rate on serve, point-win rate on the third ball, point-win rate when receiving a serve with a backhand flick, average rally length per point, and the distribution of points across each phase of a set. No single metric tells the whole story, but together they form a picture the naked eye cannot assemble in real time.

From my experience watching matches, I have noticed a fairly stable rule: at the professional level, the gap between the winning and losing player in a close match rarely lies in basic technique. It lies in the ability to control the serve and the receive — that is, the "first three balls," the phase that decides almost every point in modern table tennis. A player may have a forehand loop a few percentage points more powerful than their opponent, but if their third-ball point-win rate is lower, they still lose. This is something the scoreboard never shows you.

Core analysis: Technique, tactics, and equipment in modern table tennis

Modern elite table tennis technique revolves around a system the professionals call "loop combined with fast attack" — a blend of spin and speed. This is the most common two-sided attacking system at the professional level, and it demands an extremely delicate balance between generating spin and finishing the point. A heavy spin loop can make it hard for the opponent to control, but it gives them time to move. A fast loop can end the point immediately, but it requires the striker to be in exactly the right position at exactly the right rhythm. No choice is absolutely correct; there is only the correct choice in a specific context.

This is why I always oppose simplifying a player into a single label, such as "attacking player" or "defensive player." It is like labelling a footballer a "striker" and ignoring their entire role in the pressing system. In table tennis, a player may attack in the early phase of a point but switch to defending away from the table when pushed into an unfavourable position, then attack again with a lightning counter. Labels kill the truth.

The first three balls — the decisive phase

Nothing matters more than the first three balls of a table tennis point: the serve, the receive, and the third-ball attack. At the highest level, most points are decided within this brief window, which is why analysing serves is not a minor detail but the backbone of any serious analysis.

A professional player may hold an arsenal of dozens of different serve variations: sidespin, topspin, backspin, no-spin, short serve, long serve, serve to the middle, serve to the edge. Each variation exists for a specific tactical reason, and a good player will choose a variation based on where the opponent is standing, which foot the opponent is on, and the psychological state of the current point. When the score is 9-9, a player will almost certainly not serve riskily; they choose the variation with the highest safety rate while still maintaining the initiative.

The interesting thing is that the serve is not an independent stroke. It is part of a larger plan in which the third ball is prepared in advance. A player serving a short backspin does not necessarily want the opponent to return it short; they may be deliberately inviting a long return to unleash a finishing forehand loop. This is a textbook example of data needing to be placed in context. If you only look at the statistic "point-win rate on serve," you see a number. But if you place it beside "third-ball point-win rate" and "the trend of serve-variation selection by score," you begin to see the plan.

The backhand flick — a weapon that changes the rhythm of the match

One of the technical factors that has changed the face of modern table tennis the most is the backhand flick — a backhand attacking stroke played directly against a short ball inside the table on receive. In the past, when receiving a short serve, players tended to push the ball back or chop it to control. The flick reverses that logic: it turns a defensive situation into an attacking one immediately.

The tactical significance of the flick goes far beyond the stroke itself. When a player possesses a reliable backhand flick, the opponent loses a large part of their short-serve arsenal, because every short serve risks being attacked directly. This forces the opponent to serve longer or with different spin, and each such change opens opportunities for the receiver. This is a perfect example of how a single technique can reshape an entire match strategy.

However, the backhand flick has its price. It demands extremely fast footwork and an accurate ability to read spin. If the player misreads the spin, the flick flies out or hits the net, and they have just handed a free point to the opponent. That is why the success rate of the backhand flick is an important metric, and also why a player should not overuse it in high-pressure moments if their success rate is not stable enough.

The pips style — a deliberate disruption of rhythm

One of the most interesting and hardest-to-analyse styles in table tennis is the pips style — using short- or long-pimpled rubber. Pips produce flat, erratic trajectories that break the opponent's familiar rhythm. When facing a pips player, heavy topspin attackers often struggle because the returning ball lacks the spin they expect, and their loops become less effective.

Analysing the pips style with data is a particular challenge, because conventional metrics such as "average rally length per point" or "attacking point-win rate" do not reflect the essence of this style. A pips player may win points not by attacking harder, but by forcing the opponent into errors. This requires a different metric set, focusing on the opponent's unforced-error rate and the change in point distribution over time. This is one of the biggest blind spots in table tennis data analysis today.

Equipment factors — an undervalued variable

An aspect often ignored by fans but extremely important to professionals is equipment. The rubber, the sponge hardness, the blade construction — all directly affect how a player plays and the effectiveness of their strokes. When a player changes rubber or blade, they usually need an adjustment period to get used to the new feel of the ball, and during that period their performance may temporarily decline.

This has important implications for data analysis. If you see a player's performance decline for a few weeks, do not rush to conclude they are in a slump. First, check whether they changed equipment. I once witnessed a case where a player took nearly two months to adapt to a new sponge, and during that period his attacking point-win rate dropped significantly. Only after he got used to the new equipment did the numbers return to normal — and even better than before. Without equipment context, an analyst would draw a wrong conclusion. Every number I read is a confession the match does not speak aloud, but that confession only means something when we know its context.

Player data and head-to-head records

When analysing a table tennis player, there are three layers of data I always consider in order: ranking and points, head-to-head records, and key ability metrics. Each layer answers a different question, and ignoring any layer leads to a distorted picture.

Ranking and points — a number that never stands still

World ranking is the natural starting point, but it is also the most misleading metric. The international table tennis ranking system operates on a rolling 52-week mechanism, meaning points a player earns at a tournament expire after exactly one year. This creates pressure the professionals call "points-defence pressure" — the pressure to constantly replace soon-to-expire points with fresh results.

This mechanism has an interesting consequence: a player can hold a high ranking for a long time thanks to old points that have not yet expired, while in reality their form has declined. Conversely, a rising young player may rank lower than their true strength because they have not yet accumulated enough points. This is why I always place ranking beside recent form, and I am cautious about conclusions drawn only from the ranking number. Once again, context is everything.

When analysing points-defence pressure, I usually divide a year into phases based on the calendar. Players with many soon-to-expire points in a specific phase tend to face higher psychological pressure, and this can affect their performance in important matches. This is a factor emotional analysis often overlooks, but data analysis can quantify it to some extent.

Head-to-head records — when numbers tell a different story

Head-to-head records are one of the most powerful analytical tools, but also one of the most abused. The problem is that head-to-head is not a single number; it is a set of matches, each with its own context. A player may have a better head-to-head record against an opponent in the past, but if those wins occurred when they were at their peak and the opponent was injured, that number no longer means much.

That is why I always split head-to-head into layers: overall record, record in the last two years, and record at major events. The third layer is especially important, because the pressure at major events is an entirely different variable. A player may beat their opponent at small tournaments but lose when the two meet in a semi-final at a world championship. This is not random; it reflects a difference in the ability to handle pressure.

There is a concept I call a "nemesis" — an opponent a player finds especially difficult, regardless of ranking or form. Nemesis relationships usually stem from a style incompatibility. A heavy topspin attacker may struggle against a patient away-from-the-table defender, or a rhythm-breaking pips player. These relationships are rarely fully reflected in the ranking, which is why they are an important part of any serious analysis.

Key ability metrics

Besides ranking and head-to-head, there are three ability metrics I always consider: the win rate against foreign opponents, consistency at major events, and performance in deciding points. Together they form a more comprehensive picture of a player than any single ranking number.

The win rate against foreign opponents is the core metric for evaluating a player's strength against international opposition. In table tennis, where one country can dominate for decades, this metric is especially meaningful. A player may win many domestic matches, but if they frequently lose to international opponents at major events, their true value in the international context needs re-evaluation.

Consistency at major events is another metric. Table tennis is a sport where a player can play brilliantly all year but fail at a major event because of a few unlucky points. The ability to maintain high performance across several consecutive major events is a sign of true greatness. This is a metric ranking never captures, because ranking only cares whether you participate and accumulate points.

Finally, performance in deciding points is the metric I value most. Table tennis is a sport where a few points can decide an entire match. The ability to stay calm and execute the right stroke at the highest-pressure moments is a quality not every player has. Performance in deciding points is not fully reflected in ranking, but it is one of the clearest signs of whether a player can be a champion.

Tournament system and points rules

To understand a table tennis player's career, you must understand the tournament structure they compete in. The international tournament system in modern table tennis is organised across several tiers, from the biggest events such as the Olympics, the World Championships, and the World Cup, to ranked events with different point and prize amounts. Each tier awards a certain number of ranking points to the champion, and these points have a 52-week lifespan.

The strategic significance of this system for players is enormous. A player must plan tournament participation not only based on which events suit their form, but also on which events offer the best points for their target ranking position. This is an optimisation problem many players and their teams must solve each season.

Another aspect of the tournament system is its position in the Olympic cycle. Tournaments in the two years before an Olympics often carry special significance, because they affect Olympic qualification and seeding. This may lead some players to choose a cautious participation strategy, focusing on maintaining form rather than maximising points.

Draw analysis — an often underrated factor

Draw analysis is an aspect often underrated by fans but extremely important to professionals. In a knockout tournament, which half of the draw a player lands in can decide their fate. A difficult half with many strong opponents can cause a top player to exit early, while an easy half can help a lesser-known player go far.

When analysing draws, I usually assess the difficulty of a half based on three factors: the number of strong opponents in the half, the presence of potential nemesis opponents, and the distribution of players of the same nationality. The last factor is especially interesting, because under many tournaments' rules, players of the same nationality are usually separated into different halves to avoid meeting too early. This rule, depending on how it is applied, can create opportunities or challenges for players.

It is important to note that a difficult draw is not necessarily a disadvantage. Sometimes facing strong opponents from the start can help a well-known player build psychological momentum, while an easy draw can cause a lesser-known player to be caught off guard when meeting a strong opponent later. This is another example of why context matters more than the number.

Competitive landscape and the balance between table tennis nations

The international table tennis competitive landscape has had a fairly stable feature for decades: one country dominating at the top tier, a group of countries in pursuit, and a wave of emerging forces trying to break into the leading group. Understanding this structure helps place each match and each result in a broader context.

At the dominant tier, Chinese table tennis has maintained an almost unchallengeable position for decades. This dominance comes not only from individual talent but also from a systematically organised talent development system, large-scale training infrastructure, and a culture of internal competition so fierce that earning a place on the national team is sometimes harder than winning a medal at an international event.

This creates an interesting paradox. While the rest of the world tries to close the gap with Chinese table tennis, the biggest gap Chinese players face lies within their own country. Internal competitive pressure forces top Chinese players to constantly prove their value, and sometimes this leads to psychological tensions that players from other countries do not face.

In the pursuing group, there are several Asian and European table tennis powers with long traditions. These countries usually have a few top players who can challenge Chinese players, but they lack the squad depth to sustain competition over time. The gap between a country's number one and number five player is often an important indicator of that table tennis nation's overall strength.

In the emerging group, there are countries investing heavily in youth table tennis development and gradually closing the gap. Their progress usually comes from adopting modern training methods, inviting foreign experts, and sending young players abroad frequently to gain experience.

Assessing the threat from opponents

When assessing the threat from opponents, I look not only at recent results but also at their talent development structure. The biggest threat is not an individual player performing well, but a country building a new generation of talented players who can sustain competition for years to come.

The nature of the threat usually lies in a style difference. A country may develop a generation of players with a style that is especially troublesome for top players. For example, a generation of pips players with resilient defence can create complex tactical challenges. The threat's time window is usually measured by the development cycle of a generation of players, typically around five to ten years.

Rules and governance

Table tennis is governed by a system of organisations from the international to the national level, and their decisions can have far-reaching effects on players' careers and the competitive landscape. Understanding this system is a prerequisite for any serious analysis.

Competition-rule reform

Over the years, table tennis competition rules have undergone many changes, and each change creates winners and losers. Changes to ball size, the scoring system, and serve rules have all reshaped the sport's tactics in different ways. It is important to understand that rule changes are never neutral; they always favour certain playing styles.

For example, changes aimed at speeding up matches usually benefit fast attackers, while changes aimed at making long rallies more attractive usually benefit defenders. Tracking rule changes and their impact on the competitive landscape is an important part of the analyst's job.

Tournament-system rules

The tournament system, with its rules on points, participation conditions, and point-expiry mechanisms, creates a complex ecosystem players must navigate. These rules affect not only the calendar but also players' and their teams' long-term strategy.

A notable aspect is the mandatory participation mechanism for certain events. If a player does not participate in mandatory events, they may face point penalties or other disciplinary measures. This adds pressure to top players' schedules and can affect their physical recovery.

Selection rules and disputes

National team selection rules are one of the most sensitive areas of table tennis governance. In many countries, choosing who represents the nation at major events is a complex process involving both quantitative criteria and human decisions. The balance between these two is often the source of disputes.

Selection disputes usually erupt when a player with good results is not chosen, or when a player is chosen based on unclear criteria. For the analyst, it is important to handle these topics objectively, focusing on verifiable criteria and avoiding unsupported accusations.

Disciplinary penalties

The disciplinary penalty system in table tennis covers many types of violations, from competition-rule breaches to doping-related issues. The impact of these penalties can be huge, especially for top players, because a ban can cost them ranking position and form.

Coaching staff and talent pipeline

An aspect of elite table tennis often overlooked in public analysis is the role of the coaching staff and the health of the talent pipeline. These are factors with long-term effects on a national team's or club's success, but they are usually not reflected in short-term match statistics.

The head coach's ability and authority

A national table tennis team's head coach has a complex role, combining technical expertise, personnel management, and long-term strategy. Their authority is usually built on their own playing achievements, but maintaining that authority in a coaching role requires entirely different skills.

A good head coach must be able to make difficult decisions about who plays, allocate resources, and handle tensions between players. They must also be able to adapt to rule changes and the competitive landscape. Coaching-staff stability is an important factor for long-term success, because frequent coaching changes can cause instability within the squad.

Talent-pipeline health

A table tennis nation's talent pipeline determines its ability to sustain competition in the future. A healthy pipeline has a balanced age structure, with a leading generation at its peak, a middle generation developing, and a young generation preparing to take over.

The age structure of the main squad is an important indicator. If the main squad has too many players at the end of their careers, that is a warning sign of an upcoming generational gap. Conversely, if the main squad has too many inexperienced young players, that may signal a missed generation or too rapid a transition.

Young-generation conversion efficiency is another metric. Not every talented young player develops into a top player, and the conversion rate from young talent to elite player is a measure of a development system's health. A good system has a high conversion rate, while a poor system wastes much talent.

Generational-skip development strategy

A notable talent development strategy is generational-skip development — bypassing an older cohort and concentrating resources on very young talents. This strategy can be effective in quickly creating a new generation, but it carries the risk of overlooking players who may still have value.

Assessment of this strategy depends on the specific context. If a country has a clear generational gap and a particularly outstanding young generation, generational-skip development may be a reasonable choice. But without those conditions, it can lead to negative consequences.

Risk surface

Risk analysis is an essential part of any serious sports analysis, but it is often overlooked in public analysis. There are many types of risk a player or team may face, and identifying them early can help make better strategic decisions.

Competitive risk

Competitive risk includes challenges from opponents, including the emergence of a rising player with a troublesome style, or the rise of a country building a generation of talented players. This risk can usually be identified before it becomes a serious threat, if the analyst closely tracks the development of young players and tactical trends.

Physical and injury risk

Table tennis is a sport demanding agility and speed, and injuries can have a big impact on a player's career. Common injuries in table tennis include shoulder, wrist, and knee injuries. The impact of these injuries is not only physical but also psychological, because a player returning from injury may lose confidence in key strokes.

Tracking players' physical condition is an important part of analysis, especially during dense competition periods. A player competing in many consecutive tournaments may accumulate fatigue, and this can affect their performance in important matches.

Technical-change risk

An often-overlooked type of risk is that associated with changing technique or equipment. When a player decides to change a fundamental technical element or a piece of equipment, they usually go through an adjustment period in which their performance may temporarily decline. If this period is prolonged, it can affect the player's ranking and confidence.

Governance and public-opinion risk

Governance and public-opinion risk includes selection controversies, coaching-staff disagreements, and public pressure. In countries where table tennis is regarded as a national sport, public pressure can be huge, and it can affect players' psychology.

Systemic risk

Systemic risk includes structural problems in a table tennis nation, such as a talent shortage in a specific generation, a decline in training-system quality, or a lack of investment. These risks usually take years to develop and years to fix.

The key point about risk

It is important to remember that finding no risk does not mean there is no risk. In analysis, an empty result must be reported as "not assessable," not as "no risk." This is a principle I always follow, because overlooking a serious risk because it was not identified is a far graver error than over-alerting.

Public narrative and expectations

Every player and every team exists within a context of narrative and expectation. These narratives are built by the media, the fans, and the players themselves. They can have real effects on players' performance, because the pressure of expectations can affect match psychology.

Narrative sustainability

Media narratives usually have a certain life cycle. A narrative about a young player's rise can be sustained for a long time if supported by consistent results. Conversely, a narrative about a top player's collapse can quickly fade when that player returns to good form.

When assessing a narrative's sustainability, I usually consider three factors: support from underlying data, sample size, and the expected duration the narrative can last. A narrative supported by strong data and based on a large sample size is more likely to last than one based only on a few recent results.

Expectation-gap analysis

The gap between market expectation and objective assessment is one of the most valuable sources of information in sports analysis. When public expectation of a player is higher than their actual strength, there may be an opportunity to identify an upcoming correction. Conversely, when expectation is lower than actual strength, there may be an opportunity to identify a potential breakout.

However, assessing the expectation gap requires caution. Public expectation often reflects a complex combination of factors, including factors data cannot capture. That is why I always approach this area with a certain humility.

Credibility of sensitive rumours

In table tennis, as in any sport, there are sensitive rumours about selection, match-arranging, and injuries. These rumours must be handled with great caution. My principle is never to repeat a rumour as fact without a reliable source. In the absence of verifying sources, the correct principle is to treat all content as untiered and not to use it to draw conclusions.

Transmission across the table tennis industry

Table tennis is an industry with a complex value chain, from equipment manufacturers upstream, through tournaments and associations midstream, to broadcasting and derivative markets downstream. Events in this sport can transmit across the entire value chain, creating effects at multiple levels.

Equipment market

The table tennis equipment market includes rackets, rubbers, balls, and other accessories. Top players often have a big influence on this market through sponsorship deals and their use of equipment. When a top player switches to a new type of equipment, it can create a wave of demand from fans.

Training and grassroots base

At the grassroots level, table tennis development depends on the quality of the training system and grassroots base. Academies and clubs play an important role in discovering and developing young talent. The health of this base determines a table tennis nation's ability to sustain competition in the long term.

Tournament commercial ecosystem

The professional table tennis tournament ecosystem includes ticketing, broadcasting rights, sponsorship, and other commercial activities. The development of this ecosystem depends on many factors, including the appeal of matches, the presence of stars, and the quality of the fan experience.

Player commercial value

A player's commercial value is determined by many factors, including competitive achievement, personal character, media presence, and fan support. These factors interact complexly and can change quickly over time.

Policy and capital investment

At the policy level, state and private investment play an important role in table tennis development. Countries that invest heavily in table tennis usually achieve better results in the long term, because investment in infrastructure and talent development has a long payback cycle.

International ecosystem

At the international level, cooperation and competition among national federations shape the sport's landscape. Countries with a strong voice in international organisations can influence rule and tournament-system decisions in ways favourable to them. Understanding these dynamics is an important part of analysis.

Contrarian angle: Correlation is not causation

Here I want to pause and pose a hard question: do all the data analyses I have presented actually help us understand table tennis better, or do they only create an illusion of understanding?

This is a question I always ask myself, because I have seen too many beautiful data analyses lead to wrong conclusions. The core problem is that data tells us what correlates with what, but not what causes what. A player may have a higher attacking point-win rate than their opponent, but that does not mean their attack is the cause of the victory. Very possibly, the victory came from another factor the metrics do not capture, such as the ability to apply psychological pressure to the opponent.

A common blind spot in table tennis data analysis is ignoring the psychological factor. Table tennis is an extremely psychologically sensitive sport. In a set lasting only minutes, a player's confidence can swing rapidly, and these swings can affect stroke quality in ways data struggles to capture. A player may play with complete confidence in the first half of a set, then suddenly lose confidence after an unnecessary error.

I once witnessed such a case in a match I followed very closely. Player A won the first set by a wide margin, and all his metrics were superior to his opponent's. But in the second set, he dropped a few early points and suddenly played with visible diffidence. His metrics dropped sharply, and he lost the next two sets. If you look only at the match-average metrics, you see a completely different picture than if you look at the distribution of metrics over time.

This is one of the biggest limitations of table tennis data analysis today: the use of average metrics. Averages tend to blur important fluctuations within a match, and in a sport where a few points can decide an entire match, capturing fluctuation is essential.

Another blind spot is ignoring the coach's role. In table tennis, the coach is not only the one setting tactics but also the one reading the match and making important adjustments during breaks between sets. A good tactical adjustment can completely change a match, but it is usually not reflected in any metric. This is a blind spot pure data analysis cannot fill.

I once saw a coach tell his player to completely change the serve strategy mid-match, and that change flipped the match. In the match-average metrics, this change is almost invisible, because it occurred only in the last two sets. But if you analyse each set separately, you see a clear change in the serve metrics. This is why I always stress the importance of set-level analysis over match-level analysis alone.

Another common mistake is declaring a new tactical trend after only one match or one successful season. As someone who has witnessed major changes in the sport, I have a certain caution about such declarations. A genuine tactical trend takes years to develop and confirm, and declaring it after a few results is an oversimplification.

Finally, I want to mention a common trap in sports analysis: using hierarchical language to compare table tennis nations. Statements like "this table tennis nation is far superior to that one" often ignore complex contextual factors and usually reflect bias rather than objective analysis. Each table tennis nation has its own strengths and weaknesses, and understanding them requires analytical humility.

Takeaway: Signals to watch in the coming cycle

If you ask me what matters most to watch in the coming competition cycle, I will not talk about a specific player or a specific tournament. I will talk about the structural signals I believe will shape the sport's landscape in the coming years.

The first signal is the development of young generations in pursuing countries. Tracking their progress, not only through results but also through technical metrics and tactical progress, will give us clues about whether the gap between table tennis nations will narrow in the coming years.

The second signal is changes in competition rules and the tournament system. These changes can have far-reaching effects on the competitive landscape, and tracking them will help us prepare for the next changes.

The third signal is the evolution of playing styles. Modern table tennis is witnessing a convergence of different playing styles, with top players becoming increasingly complete. Tracking this evolution will help us understand the sport's direction.

And the final signal, perhaps the most important, is the development of analytical methods. As data become more available and analytical tools more sophisticated, we have the opportunity to understand this sport better. But this opportunity also carries a risk: the risk of being enchanted by numbers and ignoring the aspects of the sport that data cannot capture.

I do not believe in beautiful strokes. I believe in correct strokes. But I also know that sometimes the correct thing cannot be measured by any metric. A player can make the correct decision in a crucial moment and still lose, simply because their opponent did something even more correct. Table tennis, like every sport, is a delicate balance between what can be measured and what cannot. And that is precisely what makes it so compelling.