Minimum Ages

The ASA have published the  age limits at which young people can compete.

For each category the age specified is the age of the swimmer at midnight on the day of the event or the final day of a series of events forming part of one competition, whichever is later.

For major competitions the age of a swimmer at midnight on 31 December in the year of competition is used in the determination of a swimmer’s age.

Age limits for competition :

Events restricted to members of one club No minimum age
Inter-club events limited to not more than eight clubs which do not form part of a series of events as in a league. 8 years
Open events, other than in Regional and National Competitions 9 years
Relay events in Regional Competitions 10 years
Individual events in Regional Competitions 11 years
Relay events in National Competitions 12 years
Individual events in National Competitions 13 years

published by the ASA