From Zaria to Britain: The Table Tennis Diffusion Map That Data Forgot

"What did you use for a table and bat?" — that question sits inside the call for contributions from the Over 50s Black Men Forum (O5BM) for its heritage project, “Across the Table That Takes Me Back Home.” In nearly nine years of tracking sport through data, I have never opened a column for that answer. My spreadsheets measure spin speed, rally length, win probability on each point. They do not measure a wooden door propped on two chairs. They do not measure the loose change a child had to pay to touch a ball. That gap is not a technical flaw. It is a choice — and every choice leaves consequences.

O5BM is a community organization running “hubs” — spaces where Black men over 50 meet and play table tennis. The project “Across the Table That Takes Me Back Home” was initiated by O5BM itself, published by Table Tennis England — the national governing body for table tennis in England — and tied to Black History Month, October in the UK. The aim is to gather memories, photographs and objects from the journey table tennis made through participants’ lives. The named contact is Enitan Kane.

The notable part sits backstage: the project is pursuing a grant from the National Lottery Heritage Fund. In other words, this call-out targets the community as its goal while turning that same community into evidence for a funding bid. The invitation is simple: send a few sentences by email, optionally attach photographs or objects, and any quotation is published only with consent. Publicly naming the National Lottery Heritage Fund before the grant is decided is a calculated move. It signals confidence in eligibility while creating reputational exposure if the bid fails. For a community project, this is how evidence is mobilized during the application itself: every testimony sent in enriches the archive and thickens the bid.

There is a map here. Not the new kind of heat map — the thing I still call “the new astrology,” because it paints pretty coloured zones while hiding a player’s real role in the system. This is a diffusion map: Zaria, in northern Nigeria, where table tennis was played on improvised surfaces; the Caribbean and Africa, where people had to pay to use a table; then Britain, where a generation rediscovered the sport in youth clubs. Those three stages appear in no ranking. Yet they are the sport’s real infrastructure — the infrastructure performance data has never looked at.

I entered analysis from a different night: the night Germany collapsed against South Korea in Kazan in 2026, when I was seventeen, sitting in front of a screen with a notebook, calculating xG for every shot myself. Germany had 74% possession and 14 attempts, but their xG was only 1.2, while South Korea had 0.8 from three shots. The scoreline in the papers told one story; the data told another. From that night I understood that every number I read is a confession the match never speaks aloud — and from that night, too, I began to distrust what numbers refuse to say.

In table tennis, that gap is even wider. My spreadsheets can tell you what percentage of points a player wins on serve, the distribution of rally lengths, the win rate at deciding points. They cannot tell you how many rooms, corridors and schoolyards this sport has passed through. O5BM’s project is trying to fill exactly that gap, and it does so the way a museum does: collecting objects, photographs and testimony. This is material-culture history, not performance history.

In daily work, I still balance two datasets. One measures performance: win rate, point differential, pressing intensity. The other measures survival: how many people come to a hall each week, how many tables remain usable, how many clubs stay open through a winter. The second is barely funded, barely covered, and appears in no federation’s annual report. But without it, the first would have nobody left to measure. O5BM’s project, even without speaking this language, is collecting exactly that second kind of data.

The interesting part is how the project positions its “pipeline.” In performance analysis, a pipeline is the development chain from junior age groups to the national team. Here, the pipeline is a life-cycle of participation: a person plays in youth, leaves home, carries the memory of a ball, then rediscovers it in a community hub past fifty. No national-team place is awarded, no ranking changes. But something else is established: table tennis as a sport for a whole life, not only for youth.

Notice that the project calls for objects, not only testimony. Photographs, old bats, the things once used as a table — all are material evidence. An archive like that aspires beyond oral history; it wants to become a collection that can be exhibited, searched, and cited. That is a far higher standard than an ordinary call-out post.

I have one dataset to compare. In 2026, when the pandemic closed the stands, I collected figures from 380 K-League matches and 500 matches across five European leagues. Home win rate fell from 45.2% to 37.8% with no spectators. Weaker teams benefited more from the loss of crowd pressure, especially in the first fifteen minutes of each half. When the stands are empty, data becomes the only echo left behind. The lesson reaches beyond football: the physical environment and the atmosphere around a match are data too — just the kind we are too lazy to record. The pandemic taught me that the air in the stands is itself an index. Applied here: the atmosphere of a community room in Zaria, or the sound of a ball bouncing on a pay-to-play table in the Caribbean, is an index too — only nobody logs it in a column.

From the perspective of someone working between two Asian table tennis cultures, I see a familiar pattern here. In Asia, table tennis spread through schools, workplace clubs and collective playgrounds; here, it spread through migrant communities, through hubs, through rooms where people built their own tables. Two paths differ in culture but share one thing: this sport always begins in spaces not designed for it. And that is exactly why its history is hard to measure with indices built for professional arenas. When I work with data from a professional club, I remind myself that behind every performance number lies a chain of community spaces that kept the sport alive before it.

So when Table Tennis England hosts this call-out, I read it as a signal. A national governing body is actively widening not just its participant base but its own historical self-image. There is no match here, no score, no head-to-head. But it belongs to the same story: this sport was built from the ground up, by people who have never appeared in a dataset.

There is one technical detail I consider the most valuable in the whole story. The project does not seek money from a sport-development fund, but from a cultural heritage fund. That is a strategic choice. It shows community sport organizations learning to tap funding streams outside the sports system — where a story about identity and memory is worth more than a result. For a sport like table tennis, with no big television contracts or huge prize money, this may be the most important lesson: sometimes resources do not come from playing better, but from telling your own story right.

There is a temptation I want to question. When a heritage project is tied to a grant, people easily assume a good story will automatically produce a strong programme. Correlation is not causation. A successful funding bid does not guarantee that community hubs will be sustainable, that participants will keep coming, that table tennis among older Black men will receive long-term backing. The project’s biggest risk lies in funding and delivery, not in competition — simply because there is no competition here to carry risk.

One more point: I do not want to romanticize improvisation. Homemade tables, loose change paid to play, clubs short of equipment — these are signs of infrastructure scarcity, far beyond fond memory. If the project records improvisation only as charm, it will miss the harder question: why, in those places, does a global sport still survive on makeshift solutions? Recording memory is necessary, but recording without asking about material conditions only gets you halfway.

And one more thing on the data side. Even if the project succeeds, the archive it gathers remains voluntary, self-selected testimony that is hard to cross-check. That does not make it less valuable — memory has its own worth. But it means we should read it as a body of testimony, not as a dataset. Blending the two is a mistake I have seen far too often in this profession.

I keep the habit from the Kazan night: no conclusion before enough evidence, and no faith in anything flashy. O5BM’s project promises no medal. It promises something harder to measure — a trace. The signal to watch in the coming months is not a scoreline but a funding decision. If that grant arrives, and if the hubs keep their doors open, table tennis will gain one more chapter in a history book that performance data has never written. If not, we will learn that even memory needs a budget line to survive. And in this sport, I do not believe in beautiful shots. I believe in correct ones.