Cross: Spin is governed by the tangential coefficient of restitution, typically about 0.2 for a tennis ball on tennis strings. The maximum possible value is 1.0 and that could double the spin.

Thirty-seven square inches isn't a generous amount of string space to hit a tennis ball with. That's exactly the point of the Saber training tool for tennis, a product that has now reached the ...

VH Sports has partnered with the USTA to offer Red Ball Tennis to boys and girls ages 4-10 in Northern Virginia!! Looking for ...

Professional tennis players call it “the Luxilon shot,” and, apparently, you can hear it coming. The ball crosses the net hissing and spitting like some enraged tropical insect. Its most ...

Designed to mimic real gameplay, the innovative ball machine delivers personalized practice sessions with cutting-edge, AI technology.

In tournaments, the old balls are swapped for new ones after several games. Those livelier new ones can change a player’s strategy.