The Age Determination Date for a Little League baseball player is the actual age of a child as of August 31 of the current year. (Note: The Age Determination Date for a Little League softball player is the actual age of a child as of December 31 of the previous year.)

For example, if your Little League baseball player was born on 10/25/2015, he is "league age 10" for the Spring 2026 season because he will be 10 years old by August 31, 2026.

See this age calculator on the official Little League website for additional assistance in determining the league age of your child.