A four-state tennis winners-and-errors ledger — one diverging bar per shot group with winners running right in a chart token, unforced errors left in the destructive token and forced errors extending the same bar as a solid muted segment, on one shared symmetric scale with a parity tick at each row's unforced count, the winners-per-unforced ratio per group and pooled overall, and the leakiest group called out above a sample floor.