JUNIORS Junior Leagues LEVELS OF PLAY: 10U Beginner or Intermediate – Matches will be played on 60′ courts using orange low compression balls. 10U Advanced – Matches will be played on a full court using green dot balls. 12U Beginner or Intermediate – Matches will be played on standard courts using green dot balls. 14U Beginner, Intermediate or Advanced – Matches will be played on standard courts using standard balls. 18U Beginner, Intermediate or Advanced – Matches will be played on standard courts using standard balls. LEAGUES OFFERED: Junior Team Tennis (Elementary/Middle School) Junior Team Tennis (JV High School) Junior Team Tennis (Spring League) MATCH League (Ages 10U) MATCH League (Ages 11-17) Flex League CORTA offers competitive leagues for players ages 10-17. Each player must be a USTA member to register for league play. Junior memberships are FREE! Click here to join USTA. RATINGS HELP ABOUT JUNIOR RATINGS FIND CURRENT RATING For more details about CORTA juniors, read our Program Information & Policies.