As much as possible, CBC competitions use the age group categories and the associated competition specifications provided by the IBU. For additional details, refer to the IBU "Event and Competition Rules" and the "Age groups for classes of competitors," both of which are available on the IBU web site

The USBA has published some guidelines for competitors under the age of 17. (Direct link is https://www.teamusa.org/US-Biathlon/Resources/USBA-Standard-Age-Based-Race-Formats) Please note that at the present time, CBC limits the use of a .22 to competitors age 13 and older.

Masters distances follow the USBA guidelines.

CBC-specific notes: