Age group divisions

In any division designated by a minimum age (Seniors, Masters, etc), the entrant must reach the proper age on or before December 31 of the calendar year in which he/she participates. For example, a player who is 39 is allowed to enter the Masters (40-plus) if he/she turns 40 before December 31 of the year in which the tournament is scheduled. In any division designated by a maximum age (Juniors, Challengers, etc), the player cannot have passed the age of eligibility until the day after the scheduled end of the tournament. For example, a player entering the 15-and-under division cannot reach his/her 16th birthday until the day after the tournament is scheduled to end.