Competitions take place in single year age divisions. These age divisions provide young athletes the opportunity to compete with other athletes of similar ability. The age divisions for the 2018 competition year are as follows:
Age Division Year of Birth
7-8 yrs 2012-2013
9 yrs 2011
10 yrs 2010
11 yrs 2009
12 yrs 2008
13 yrs 2007
14 yrs 2006
15-16 yrs 2004-2005
17-18 yrs 2001-2003*
*Athletes who are still 18 through the final day of the AAU National Junior Olympic Track & Field Championships are eligible to compete in the 17-18 yr divisions through that meet. This extended eligibility does not apply to cross country events.