Tennis Balls Calculator

Estimate how many tennis balls a match or tournament requires under ATP and WTA ball-change rules. Six new balls start each match, with changes after the first seven games and then every nine games thereafter.

Ball Change Schedule

Professional matches begin with six balls. After game seven, a fresh set of six replaces them. Subsequent changes happen every nine games at games 16, 25, 34, and so on. A typical two-set match of about 20 games uses three ball sets, or 18 balls total.

Tournament Planning

Multiply balls per match by the number of matches and add a crowd-loss allowance for balls that end up in the stands. A five-set men's match averaging 48 games can use 36 balls before accounting for souvenirs taken by fans.

Frequently Asked Questions

How many tennis balls are used in a match?

A typical two-set match of about 20 games uses 18 balls (three sets of six). A five-set match of about 48 games can use 36 balls.

When are tennis balls changed during a match?

Balls are changed after the first seven games, then every nine games after that. Each change introduces a fresh set of six balls.

How do I calculate balls for a tournament?

Estimate balls per match from total games, multiply by the number of matches, and add a percentage for balls lost to the crowd.

Can I reuse tennis balls after a match?

Casual players can reuse balls until they lose bounce. Professional matches always start with new balls and change them on schedule because felt wear changes ball speed and bounce.

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Tennis Balls Calculator