An official tennis ball is approximately 2.575 to 2.7 inches in diameter and 2 ounces in weight. What are the dimensions of an Olympic tennis court? A tennis court measures 78 feet in length and ...

What are tennis balls made of? Modern tennis balls are made of a hollow rubber core, covered in a wool or nylon shell which is known as the nap. Pressurised air inside the rubber core makes the ball ...