Change of Balls Meaning in Tennis

A change of balls is a scheduled moment in a match where old tennis balls are replaced with new ones. Professional matches use the same set of balls for a specific number of games to ensure consistency. The first change usually happens after seven games, while following changes occur every nine games. This is because the balls are used for the pre-match warmup, which wears them down faster initially. New balls are faster, firmer, and bounce higher than balls that have been hit for several sets. Players often adjust their strategy because fresh balls are harder to control but easier to hit for winners. For example, an umpire calls out new balls please to signal the ball kids to collect the old ones. The server then selects the three best-looking new balls from the fresh batch for their next game. This rotation ensures that the equipment never becomes too soft or slow to provide a fair contest. It is a key part of the professional game’s timing and rhythm. Fans can see the difference as the bright yellow felt looks much cleaner.