A rower may compete in Masters rowing events from the beginning of the year during which he attains the age of 27. The age of a rower in a Masters rowing event shall be that which he attains during the year of the event. Masters rowing events shall be held in the following crew age categories:

A Minimum age: 27 years,
B Average age: 36 years or more
C Average age: 43 years or more
D Average age: 50 years or more
E Average age: 55 years or more
F Average age: 60 years or more
G Average age: 65 years or more
H Average age: 70 years or more
I Average age: 75 years or more
J Average age: 80 years or more
K Average age: 85 or more

Age categories do not apply to coxswains of Masters crews.