Please see below for amended age categories for the 2023 seasons, as voted on by the membership at the 2022 Semi-Annual Meeting.
Box Lacrosse
| Category | Age | Birth Years |
| Senior Masters | 35 and over | 1988 & Older |
| Junior Masters | 22 - 34 | 1989 - 2002 |
| Senior | 22 and over | 2001 & older |
| Junior | 21 and under | 2002 & younger |
| U19 | 17 and 18 | 2005-06 |
| U17 | 15 - 16 | 2007-08 |
| U15 | 13 and 14 | 2009-10 |
| U13 | 11 and 12 | 2011-12 |
| U11 | 9 and 10 | 2013-14 |
| U9 | 7 and 8 | 2015-16 |
| U7 | 5 and 6 | 2017-2018 |
Men's Field, Women's Field, Sixes Lacrosse
| Categories | Age | Birth Years |
| Masters | 35 and over | 1988 and older |
| Senior | 19+ | 2004 and older |
| U19 | 17 and 18 | 2005-06 |
| U17 | 15 and 16 | 2007-08 |
| U15 | 13 and 14 | 2009-10 |
| U13 | 11 and 12 | 2011-12 |
| U11 | 9 and 10 | 2013-14 |
| U9 | 7 and 8 | 2015-16 |
| U7 | 5 and 6 | 2017-18 |