Junior Age Classes
Orienteering age classes (like many sports) are based on your age at the end of each year (31st of December) - classes are also divided into Men (M) and Women (W). As a junior, the age groups break down like so:
If you will 10 years old (or under) on Dec 31st, you are in the M10 or W10 age classes
If you will be 11 years old on Dec 31st, you are in the M12 or W12 age classes
If you will be 12 years old on Dec 31st, you are in the M12 or W12 age classes
If you will be 13 years old on Dec 31st, you are in the M14 or W14 age classes
If you will be 14 years old on Dec 31st, you are in the M14 or W14 age classes
If you will be 15 years old on Dec 31st, you are in the M16 or W16 age classes
If you will be 16 years old on Dec 31st, you are in the M16 or W16 age classes
If you will be 17 years old on Dec 31st, you are in the M18 or W18 age classes
If you will be 18 years old on Dec 31st, you are in the M18 or W18 age classes
If you will be 19 years old on Dec 31st, you are in the M20 or W20 age classes
If you will be 20 years old on Dec 31st, you are in the M20 or W20 age classes
Beyond this - congratulations! You have made it to the M21 or W21 senior classes!