|Age Division||Previous||Birth Year|
|8 & under||Sub-Bantam||2008+*|
* Per USATF Rule 300.1 (c) "Athletes must be at least seven (7) years of age on December 31 of the current year to compete at the Youth Athletics or Junior Olympic National Championships."
** Athletes who are still 18 through the final day of the USATF National Junior Olympic Track & Field Championships are eligible to compete in the 17-18 age division through that meet. This extended eligibility does not apply to cross country events.