Two goals by Anthony Williams, scoring after eight and 15 minutes, set up Mynydd, who added a third goal from Brett Jones on 63 minutes, when he punished a mix-up between the hosts’ keeper and a defender.

Glantraeth squeezed a reply from Paul Rowlands on 88 minutes but then, in a furious finale, Gerallt Jones shot into the side netting and put another chance inches wide.