By the Numbers

Brain Break

How Many Balls Do They Use at the US Open? 14 Amazing Facts You Didn't Know.

Take a look at the mind-blowing numbers behind the big tennis event.

Entrepreneur Media, Inc. values your privacy. In order to understand how people use our site generally, and to create more valuable experiences for you, we may collect data about your use of this site (both directly and through our partners). By continuing to use this site, you are agreeing to the use of that data. For more information on our data policies, please visit our Privacy Policy.