How Long Do Tennis Balls Last Once Opened

So how long do tennis balls really last? Tennis balls will go bad after about 2 weeks or 3-4 playing sessions.

How long do tennis balls last after opening can?

Tennis Ball DurationRecreational PlayCompetitive PlayPressureless Balls1-3 years of moderate playNot recommended

How often should tennis balls be replaced?

Originally Answered: How often are balls changed in tennis matches? In a match at the Major, the ball are ideally changed after every 7–8 games. Barring the first change of balls, which happens early because the same balls are used for the warm-up. So the umpires order change of balls every 7–8 games.