Singles League is a great way to continue singles play beyond the Spring League. If you like singles or want to try your hand at it again after all the doubles you have been playing, this is the league for you. This is a team format for the 2.0 to 4.0 levels. 3-6 players comprise a team. In each team match, three courts of singles (all the same level) are played. For 4.5 and above, challenge ladders are the format. Players must be at least 18 years of age and have a valid USTA membership.