Ace your game! Levels designed with US Tennis Association to offer players the chance to develop needed skills. All classes are offered in partnership with Sunset Tennis. 9U Red: Ages 4-7 Introduces students to the basic stroke fundamentals and rules of the game. 10U Orange: Ages 8-10 Builds on your skills with emphasis on live play and score keeping. Developmental: Ages 10-17 Learn the game and basic strokes. More advanced players will improve playing skills, strategy, and scoring. Please bring your own tennis racket, Sunset Tennis Center does have a small selection for sale.