The following age groups are defined as of December 31st of the current license year (August 1st to July 31st of the following year).
| U13 | any athlete who is a minimum of 11 years old and under 13 years |
| U15 | any athlete who is a minimum of 12 years old and under 15 years |
| U17/Cadet | any athlete who is a minimum of 12 years old and under 17 years |
| U20/Junior | any athlete who is a minimum of 12 years old and under 20 years old |
| U23 | any athlete who is a minimum of 13 years old and under 23 years old |
| Senior | any athlete who is a minimum of 13 years old |
| Veteran | any athlete 40 years or older |
Age groups are not exclusive of each other. An athlete may be a member of one or several age groups depending on the criteria.