Don't know if this gets at your question completely, but ...
World Archery rule book section 4.2:
4.2. CLASSES
4.2.1. World Archery recognises the following classes:
Cadet Women;
Cadet Men;
Junior Women;
Junior Men;
Women;
Men;
Master Women;
Master Men;
For Para-Archery, see 21.
4.2.2. Separate events for Cadet and Junior Women, Cadet and Junior Men, Master Women and Men can be organised in the disciplines of Target and Field Archery.
4.2.2.1. At each competition an athlete can compete in one class only. This applies to all classes for which he is eligible.
4.2.3. An athlete may participate in a Cadet Class in tournaments when the competition takes place up to and in the year of his 17th birthday.
4.2.4. An athlete may participate in a Junior Class in tournaments when the competition takes place up to and in the year of his 20th birthday.
4.2.5. An athlete may participate in a Master Class in tournaments when the competition takes place in the year of his 50th birthday and thereafter.