Track & Field Age Groups for 2021 are as follows;

Under 11: Born on or after 01/09/10 and already age 9 on the day of competition

Under 13: Born between 1 Sept 2008 - 31 Aug 2010

Under 15: Born between 1 Sept 2006 - 31 Aug 2008

Under 17: Born between 1 Sept 2004 - 31 Aug 2006

Under 20: Born between 1 Jan 2002 - 31 Aug 2004

Senior: Born on or before 31 Dec 2001

Masters: 35 and over on day of competition (5 year age groups)