#3 Red / Red & White Tennis Balls. The red foam or felt balls that are used at this point gave rise to the name “red tennis.” Beginning players have an opportunity to position up and take a decent swing at the ball since this color ball bounces lower and moves through the air more slowly.

Tennis balls come in different colors, and each color has its own meaning. The four main colors are yellow, green, white, and orange. Let’s take a look at each one.

Red: Stage 1. Stage 3 tennis balls are color-coded red and yellow for kids age 4-6. These are the largest and made of soft foam for kids ages 4-6 who use a 23-inch tennis racquet and smaller 36′ x 18′ court, which is 2′ 9″ high. My favorite pick for Red Stage 1 tennis balls are from Penn’s youth foam tennis balls. Red: Stage 2

If you're just beginning to play tennis, try red ball tennis, or even orange or green balls—and know you'll be acing in Optic Yellow in no time.