Important League Age Information: 

Little League International has changed and amended the new age determination date which will go into effect for the upcoming Fall 2018 season. 

For players born on or before August 31, 2005: The new age determination date of August 31 will be effective starting with the 2018 Little League Baseball Season. 

For players born on or after September 1, 2005: The new age determination date will be effective immediately, starting with the 2016 season. This was the implementation used for the 2015 season, with players turning 4 to 9 years old during the 2015 calendar year to use the December 31 age determination date. That implementation remains in place, except instead of using December 31, you will use August 31.

2018 Little League Age Chart
FOR BASEBALL DIVISION ONLY

Match month (top line) and box with year of birth. League age indicated at right.

JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC AGE
2014 2014 2014 2014 2014 2014 2014 2014 2013 2013 2013 2013 4
2013 2013 2013 2013 2013 2013 2013 2013 2012 2012 2012 2012 5
2012 2012 2012 2012 2012 2012 2012 2012 2011 2011 2011 2011 6
2011 2011 2011 2011 2011 2011 2011 2011 2010 2010 2010 2010 7
2010 2010 2010 2010 2010 2010 2010 2010 2009 2009 2009 2009 8
2009 2009 2009 2009 2009 2009 2009 2009 2008 2008 2008 2008 9
2008 2008 2008 2008 2008 2008 2008 2008 2007 2007 2007 2007 10
2007 2007 2007 2007 2007 2007 2007 2007 2006 2006 2006 2006 11
2006 2006 2006 2006 2006 2006 2006 2006 2005 2005 2005 2005 12
        2005 2005 2005 2005         12
2005 2005 2005 2005         2004 2004 2004 2004 13
2004 2004 2004 2004 2004 2004 2004 2004 2003 2003 2003 2003 14
2003 2003 2003 2003 2003 2003 2003 2003 2002 2002 2002 2002 15
2002 2002 2002 2002 2002 2002 2002 2002 2001 2001 2001 2001 16

 

Note: This age chart is for BASEBALL DIVISIONS ONLY, and only for 2018.

http://www.littleleague.org/media/llnewsarchive/2015/September-December/llb-age-determination-date.htm