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JTCC’s Adult Programs are offered using the NTRP (National Tennis Rating Program) system which classifies players into levels between 1.0 (Beginner) and 7.0 (Touring Professional) based on their tennis abilities.

JTCC Adult programs use tennis balls designed for their abilities and the class level. Beginner classes use lower compression balls (Red, Orange and Green) to facilitate the development of proper stroke technique and control, while Intermediate and Advanced classes use standard Yellow balls.