Under 13 athletes must be born on or between 1st September 1997 and 31st August 1999

Under 13s - may compete in a MAXIMUM of 3 events.  Only one of these is allowed to be between 600m and 1500m inclusive

Under 15 athletes must be born on or between 1st September 1995 and 31st August 1997

Under 15s - may compete in a MAXIMUM of 3 events.  Only one of these is allowed to be between 600m and 3000m inclusive

Under 17 athletes must be born on or between 1st September 1993 and 31st August 1995

Under 17s - may compete in a MAXIMUM of 3 events

Under 20 athletes must be born on or between 1st January 1991 and 31st August 1993

Under20s - may compete in a MAXIMUM of 5 events

Senior Athletes must be born on or before 31st December 1990

Seniors - no limitations