A traditional theory was that string texture could somehow help produce spin by “gripping” the ball, ... typically about 0.2 for a tennis ball on tennis strings.

Now, the uniformity of tennis balls used in competitions is heavily monitored by the International Tennis Federation (ITF) to ensure a consistent size, shape, texture, density, and color. While ...

You can't play tennis without tennis balls. Yet an increasingly vocal group of players says that the tennis balls used on tour are behind a major problem: They're causing injuries.

Using a Tennis Ball To Massage Your Soles Doesn’t Just Help With Foot Pain—It Helps Your Back, Too. If you've spent all day on your feet and your tootsies are screaming for some TLC, a tennis ...