How often is the MacRobertson International Croquet Shield tournament ?
" Mon 16 - Sat 21 August : Tier 2 Division 1 " : The next four countries played at the Hurlingham Club , London.•Tier 2.1 winner Wales " Mon 16 - Sat 21 August : Tier 2 Division 2 " : The next four countries played at the Compton Croquet Club , Eastbourne , East Sussex.•Tier 2.2 winner Scotland " Wed 18 - Sat 21 August : Tier 3 " : The remaining five countries played at the Sussex County Croquet Club.•Tier 3 winner Czech Republic