Birmingham Tennis Park

Tennis balls come in four different numbers, 1, 2, 3 and 4. But why are the numbers limited to these four? The answer is simple, to improve the performance of the ball. The numbers indicate the amount of pressure within the ball. A higher number means a firmer and faster ball, while a lower number means a softer, slower ball. The four numbers allow players to choose the right ball for their game, so they can perform at their best. Plus, the numbers also help to differentiate and identify the balls, making sure that players are using the right ball for the right court. So, the next time you’re on the court, you know why the numbers on the tennis ball matter.