Here is a look at the different levels of tennis currently available:
Red tennis is named after the red foam or felt balls that are used at this stage. Red tennis balls bounce lower and move more slowly through the air, giving beginning players a chance to set up and take a good swing at the ball. Courts at this level are 36 feet long and 18 feet wide, with a net that is 2-foot-9.
Once comfortable at the Red level, players graduate to playing at the Orange level. Orange felt balls bounce higher and move faster than the Red felt or foam balls but lower and slower than the Green ball. They are a step toward the traditional yellow tennis ball while still remaining fun and manageable for players learning the game. Courts at this level are 60 feet by 21 feet for singles and 60 feet by 27 feet for doubles. The net is 3 feet at the center and 3-foot-6 at the net posts.
After Orange, the next level is Green. The Green ball is very similar to the traditional yellow tennis ball but with a slightly lower compression so it rebounds lower off the court after a bounce.
The Green court is the same dimension as the traditional Yellow court: 78 feet by 27 feet for singles and 78 feet by 36 feet for doubles. The net is 3 feet at the center and 3-foot-6 at the net posts.
The Yellow level is what most people know as traditional tennis. The balls, courts and racquets at this level are used in the majority of adult matches and at the professional level.
That means the court size is the same as at the green level: 78 feet by 27 feet for singles and 78 feet by 36 feet for doubles, with a net that is 3 feet at the center and 3-foot-6 at the net posts.
Ages 12 to 18 – Skill level advanced. For performance players who are committed to playing tournaments and/or junior team tennis and have the desire to compete on local or regional level.