Chemistry Leaderboard
One number per squad: Team Chemistry Density (TCD). It counts the pairs whose tracking-derived joint impact clears the tournament median — offensively, defensively, and across the off-ball / on-ball seam — then sums them. Below: every team ranked, every per-team network drawable on click.
Top 4 by TCD = WC22 semifinalists. France 1, Brazil 2, Croatia 3, Morocco 4. ρ(TCD, WC22 finish) = +0.704 · ρ(TCD, History Index) = +0.348 · n = 31.
Per-team leaderboard
Click any column header to sort. Default sort: TCD descending. Click a row for the team's pair network.
Team pair network
11 most-used players as nodes, positioned on the pitch. Edge color = edge type (off-off, def-def, cross). Edge thickness ∝ AW-JOI90. Hover an edge for the pair-level value.
Column glossary
- TCD — Team Chemistry Density
- Strong off pairs (above the tournament-pool median AW-JOI/90) + strong def pairs (above the pool-median AW-JDI/90) + cross-team net (positive-net cross pairs minus negative-net cross pairs).
- TCD-off
- Number of off-off pairs whose AW-JOI/90 clears the pool median.
- TCD-def
- Number of def-def pairs whose AW-JDI/90 clears the pool median.
- TCD-cross
- Net contribution from cross-line (off ↔ def) pairs: (# positive-net pairs) − (# negative-net pairs), where net = AW-JOI/90 − AW-JDI/90.
- AW-JOI — attention-weighted Joint Offensive Impact / 90
- Frame-by-frame, attention coupling × the change in P(score) − P(concede). Summed across the tournament, normalised per 90 minutes shared. The continuous, value-weighted version of JOI.
- AW-JDI — attention-weighted Joint Defensive Impact / 90
- Same construction, credited on negative-value frames (chances against, collapses). Per 90 minutes shared.
- FIFA-23 Overall
- Squad-mean FIFA 23 Overall rating — the talent baseline.
- WC22 finish
- Tournament stage reached (Winner, Final, 3rd, 4th, QF, R16, Group).
- History Index
- Count of squad players with at least one club-mate inside the same national-team squad — a proxy for pre-existing chemistry from club football. Click through for the full breakdown.
- Top pair
- The single strongest AW-JOI pair on that squad — the headline partnership the tracking model identified.
Caveats
- n = 31 teams (one squad lacks tracking on the right side of the join). Single tournament; treat all correlations as descriptive, not predictive.
- TCD is a count, not a continuous measure. Two teams within a few pairs of each other are effectively tied.
- Pool-median thresholds are computed on this tournament's pairs only — the metric does not transfer to other tournaments without re-pooling.
- Cross-team net can go negative (more negative-net pairs than positive). The component is signed; TCD itself can include a negative contribution from this term.
- Goalkeepers are included in def-def and cross categories where applicable. Off-off explicitly excludes them.