Little League has come up with a transition plan for the new age determination date. See below and follow the link for more information and an Age Chart to use for 2020.
2020 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 |
| 2016 | 2016 |
2016 |
2016 |
2016 | 2016 | 2016 |
2016 |
2015 | 2015 | 2015 | 2015 | 4 |
| 2015 |
2015 |
2015 |
2015 |
2015 |
2015 |
2015 |
2015 |
2014 | 2014 | 2014 | 2014 | 5 |
| 2014 | 2014 |
2014 |
2014 |
2014 |
2014 |
2014 |
2014 |
2013 | 2013 | 2013 | 2013 | 6 |
| 2013 |
2013 |
2013 |
2013 |
2013 |
2013 |
2013 |
2013 |
2012 | 2012 | 2012 | 2012 | 7 |
| 2012 |
2012 |
2012 |
2012 |
2012 |
2012 |
2012 |
2012 |
2011 | 2011 |
2011 |
2011 |
8 |
| 2011 |
2011 |
2011 |
2011 |
2011 |
2011 |
2011 |
2011 |
2010 | 2010 |
2010 |
2010 |
9 |
| 2010 |
2010 |
2010 |
2010 |
2010 |
2010 |
2010 |
2009 | 2009 | 2009 |
2009 |
2009 |
10 |
| 2009 |
2009 |
2009 |
2009 |
2009 |
2009 |
2009 |
2009 |
2008 | 2008 |
2008 |
2008 |
11 |
| 2008 |
2008 |
2008 |
2008 |
2008 |
2008 |
2008 |
2008 |
2007 | 2007 |
2007 |
2007 |
12 |
| 2007 | 2007 | 2007 | 2007 | 2007 |
2007 |
2007 |
2007 |
2006 | 2006 | 2006 | 2006 | 13 |
| 2006 | 2006 | 2006 | 2006 | 2006 | 2006 |
2006 |
2006 |
2005 | 2005 | 2005 | 2005 | 14 |
| 2005 | 2005 | 2005 | 2005 | 2005 |
2005 |
2005 |
2005 |
2004 | 2004 | 2004 | 2004 | 15 |
| 2004 | 2004 | 2004 | 2004 | 2004 |
2004 |
2004 |
2004 |
2003 | 2003 | 2003 | 2003 | 16 |
2NOTE: This age chart is for BASEBALL DIVISIONS ONLY, and only for 2020.