Hal v. Stice: the charts nobody's allowed to see
deLint was filling in both players’ names on performance charts Schtitt won’t ever let anyone look at.
Context
Every stroke of the match is being quantified in real time onto "performance charts Schtitt won't ever let anyone look at." The bodies play; deLint scores them into a ledger they're never permitted to read. The athletic body at E.T.A. is under continuous secret measurement — the inspired point, the double fault, all of it going into a chart that belongs to the institution, not the player who produced it.