AAU Rule states you can play down if you would like as long as you follow this guideline/example for any grade:
EXAMPLE: 9TH GRADE DIVISION (15U Level)
An athlete must be in the 9th grade as of October 1, 2017 and can be no older than 15 on August 31, 2017.
For an athlete that is in the 9th grade as of October 1, 2017 wanting to play down, they can be no older than 16 on August 31, 2017.
Please sign up for the correct age group you would like to play with. Or show up at that time of tryout!