There were mixed results in last night's SSE Airtricity Premier Division games.
Leaders Shelbourne beat Dundalk 1-0 at Tolka Park.
Second placed Derry City remain just two points behind Damien Duff's side though.
They enjoyed a 2-0 home win over Galway United while Waterford are fourth and beat Sligo 4-1 and it finished up scoreless between Drogheda and St. Pat's.