Table tennis

Table tennis is officiated almost entirely by eye, at a speed that makes that remarkable. The umpire sits level with the net and calls the score, the edge and the net; an assistant umpire sits opposite, and the assistant's principal job is the service.

That a second official exists purely to watch one action tells you how much weight the service law carries. Judging it means deciding whether the ball rose 16 centimetres, whether the palm was flat and stationary, and whether the ball was visible to the receiver — three judgements about a movement lasting under a second, made from the side.

Video review arrived late and remains limited. It is used at some top-tier events for edge balls and for whether the ball touched the table, both of which are questions of fact and both of which a camera answers well.

What no camera has settled is the service, and the reason is now familiar from the rest of this site: the service law asks for a judgement, not a measurement. "Visible to the receiver" is a claim about someone else's line of sight. Table tennis has the same structural problem badminton had before 2018, and it has not taken badminton's way out of replacing the judgement with a fixed number, because there is no obvious number to replace it with.

The other thing officials watch is the racket itself. Coverings must be from the approved list, correctly coloured and within thickness limits, and rackets are inspected before matches — an equipment check that exists because two separate laws in this sport are about what the opponent can see.

Table tennis has the widest national spread of any racket sport and the narrowest elite concentration of any sport on this site. Both are true at once, and the combination is unusual enough to be the point of this section.

The spread comes from the equipment. A table, a net and two bats will outfit a club, the space required is a room rather than a facility, and the ITTF has pursued global distribution deliberately. The sport is organised in more national associations than football.

The concentration is China. Since the 1980s Chinese players have won the large majority of world and Olympic titles available to them, through a training system that identifies players in childhood and a domestic league whose internal standard exceeds most countries' international one. As with badminton in Asia and distance running in the Rift Valley, the honest thing to say is that the concentration is real and its causes are contested.

The rule consequence is the one recorded in this sport's politics: because the dominance is so complete, essentially every rule change the ITTF makes is read by somebody as an attempt to end it. That reading attaches to the 40 mm ball, the eleven-point game and the speed glue ban alike, and in each case the federation gave a different and independently plausible reason. This site records both and settles neither.

Olympic quota rules bite here as they do in badminton: a country may enter only two players per singles event, so the deepest field in the world is a national trial.

Table tennis is the only sport on this site that began as an imitation of another one. It appeared in late-Victorian England as an after-dinner parlour game — books for a net, a cigar box lid for a bat, a champagne cork or a rubber ball — and its whole point was that it was lawn tennis indoors, on a table, in winter.

The name it is still commonly known by came from a manufacturer. Ping-Pong was a trademark registered around 1901 for one company's version of the equipment, and the sport's governing bodies have used "table tennis" ever since precisely to avoid it. That a sport's popular name is somebody's brand is not unique, but it is unusually clean here.

Two things made it a sport rather than a diversion. The first was the celluloid ball, adopted around 1900, which bounced consistently enough to allow rallies. The second was pimpled rubber on the bat, which allowed spin — and spin is what separates table tennis from the parlour game it descends from. Everything interesting in its rulebook follows from that one material.

The International Table Tennis Federation was founded in 1926 and held its first world championships the same year. The sport entered the Olympic programme in 1988.

Table tennis has changed its equipment more aggressively than any other sport on this site, and unlike athletics it has done so mostly on purpose.

The rubber. Pimpled rubber gave the sport spin. Sponge backing, arriving in the 1950s, multiplied it — a Japanese player won the 1952 world championship with a thick sponge bat against opponents using plain pimples, and the federation has been specifying covering thickness ever since. Long pimples and anti-spin surfaces then created the opposite problem: rubbers that reversed or killed the incoming spin, unreadable when mounted in the same colour as their opposite. The 1986 two-colour law exists because of them.

Speed glue. From the 1970s, players discovered that re-gluing a rubber with volatile solvents swelled the sponge and added speed and spin for a few hours. It became universal and had to be redone constantly, which meant elite players were inhaling solvent daily, often in unventilated rooms, often as children. Banned with effect from 2008.

The ball, twice. From 38 mm to 40 mm in 2000, deliberately, to slow the game for television. From celluloid to plastic in 2014, not deliberately — celluloid is flammable, was falling out of manufacture and was becoming difficult to ship. The second change reduced spin again, which cut against what the first change had been trying to achieve.

Set against football, whose ball specification has not needed to move in decades, table tennis shows what happens when a governing body specifies its implement tightly: it has to keep amending it, and each amendment moves the sport.

The ITTF's defining political fact is that one country has been overwhelmingly dominant for four decades, and that the federation's rule changes are routinely read as responses to it. China's supremacy in table tennis is more complete than any nation's in any other sport on this site, and the 40 mm ball, the eleven-point game and the speed glue ban have all been described by somebody as attempts to blunt it.

This site records that reading and does not endorse it. In every case the federation gave a different reason — broadcast, health, manufacturing — and in every case that reason is independently plausible. Where a stated reason and a widely believed one diverge, the vocabulary here has a word for it, and the honest position is that these particular changes have not been shown to be dominance suppression rather than what they claim to be.

The federation's other long-running project is genuinely admirable and worth recording: table tennis is the most globally distributed racket sport by participation, and the ITTF has pursued that deliberately through cheap equipment standards and a development programme. The sport is played competitively in more national associations than football is.

Table tennis diplomacy is the one piece of this history everyone knows. The American team's visit to China in 1971, arranged around a world championship, preceded the resumption of relations between the two countries. It is the only occasion on this site where a sport's governing structure was used as an instrument of foreign policy and said so.

The unreadable bat. Through the 1970s and early 1980s players mounted radically different rubbers on the two sides of a bat in matching colours, twiddled it during rallies, and left opponents unable to tell which surface had struck the ball. Nothing about it was against the laws. It was a legal way of winning points on information the opponent could not obtain, and in 1986 the federation required the two sides to be different colours. The rule is unusually blunt about what it is for.

The hidden serve. The same problem, sixteen years later, in a different place. Servers had developed actions that screened the moment of contact behind the free arm or shoulder, so the receiver could not see how much spin was being applied or in which direction. The 2002 law requires the ball to be visible throughout. Two laws, sixteen years apart, both written because the sport's central skill — reading spin — could be defeated by hiding rather than by outplaying.

Sydney 2000, and the camera. The trigger for the larger ball was not an incident but a broadcast. At the top level the ball was travelling faster than period television could usefully show and faster than a crowd could follow, and a sport that cannot be watched cannot be sold. The federation enlarged the ball within months of the Games.

Solvent fumes. Speed glue was not a controversy in the sense of a single event; it was an accumulating one. A performance gain that required players to inhale volatile solvents before every match, and that trickled down to junior and school level, became indefensible. The ban took effect in 2008.

Recorded as unsettled.

The plastic ball. Ten years on, players still argue that the 2014 material change reduced spin and shortened rallies — the opposite of what the 2000 size change was for. Manufacturing tolerances have improved and the balls have converged, but whether the sport's physics should be set by what is commercially manufacturable is an open question that the federation did not choose to face and cannot avoid.

The service, again. Two laws have been written to stop concealment and neither has produced a service that officials judge consistently. Proposals recur to replace the visibility test with something measurable — a fixed minimum throw height enforced by camera, or a required contact zone — which is the move badminton made in 2018. Table tennis has not made it.

Frequency of change. The sport has altered its ball, its scoring, its glue and its service law inside a quarter of a century. There is a real argument within it that this is a federation too willing to legislate, and that the accumulated effect is a sport whose records and statistics mean nothing across time. This site is sympathetic to that reading and notes that it is a reading, not a finding.

Dominance. Whether a governing body should act against one nation's supremacy at all — and what a legitimate instrument would even look like — remains live in table tennis in a way it is not in most sports, precisely because the supremacy is so complete.