2020 XCR & 2020/21 AVSL Age Groups
| Age Group | Year of Birth |
| U14 | 2007, 2008 & 2009 |
| U16 | 2005, 2006 |
| U18 | 2003, 2004 |
| U20 | 2001, 2002 |
| Open | 2000 and older (athletes born 2004 onwards can compete in the open age group) |
| Masters | Age Group taken as of competition start date |
2020 Championship Age Groups
| Age Group | Year of Birth |
| U14 | 2007, 2008 & 2009 |
| U15 (if held) | 2006 |
| U16 | 2005, 2006 |
| U17 (if held) | 2004 |
| U18 | 2003, 2004 |
| U20 | 2001, 2002 |
| Open | 2000 and older (athletes born 2004 onwards can compete in the open age group) |
| Masters | Age Group taken as of competition start date |
2021 Championship Age Groups
| Age Group | Year of Birth |
| U14 | 2008 & 2009 |
| U15 (if held) | 2007 |
| U16 | 2006, 2007 |
| U17 (if held) | 2005 |
| U18 | 2004, 2005 |
| U20 | 2002, 2003 |
| Open | 2001 and older (athletes born 2005 onwards can compete in the open age group) |
| Masters | Age Group taken as of competition start date |