A late surge saw defending Ulster Bank League champions Clontarf get back to winning ways with a 24-21 victory over hosts Old Belvedere at Anglesea Road.
These three documents outline the variations in the application of the laws of rugby at the different age grades of the game in Ireland.
Mens Game - Variations (including Senior, Junior 1, Junior 2 and Under 20s)
Women's Game (including all levels of the women's game)
Age Grade Club Rugby (including Age Grade Schools, Age Grade Clubs and Mini)