Glenn Gray is a Grade 3b on the NWCFA referees list. This means he can officiate on the Referees Panel of the Directly Affiliated Leagues at Tier 4 of the Welsh Pyramid (i.e. Welsh League Division 3, SPAR Mid Wales Division 2, Welsh National League Division 1, Welsh Alliance League Division 1) and at area level and he can act as an Assistant Referees at Tier 2 & 3.