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Balls and equipment

Grid of the share of first serves in play that go unreturned, by how many games each set of balls has been used, on men's tour-level hard courts in 2022–26. Fresh balls average 43% unreturned and worn balls 34%, dropping from 42–44% with new balls to the mid 30s after five or more games.

Fresh out the can

This is so interesting because there's a measurable impact from newer/older balls on rates of aces, holds, unreturned, double faults, 1st serve in %, rally length et al.

July 2026