The dates for participation are as below.

Total enrolment 3rd to 6th classes inclusive | To be born after this date

200 + | 1st Jan 2001
170 -199 | 1st Dec 2000
140 -169 | 1st Nov 2000
110 – 139 | 1st Oct 2000
80 – 109 | 1st Sept 2000
50 – 79 | 1st Aug 2000
30 – 49 | 1st July 2000
29 – less | 1st June 2000

These numbers refer to boys and girls seperately.