Jordanne Greenough scored twice for Llandudno
After a competitive, but goalless first half in Rhyl, it was former Caernarfon Town striker Greenough who broke the deadlock in the 63rd minute. Knowing that a draw would be enough for League safety, Sara Colville's seventh-placed side were cruising, but only for six minutes.
The Lilywhites, who occupy eighth place in the League, equalised through Rachael Nattrass who scored with a free-kick in the 69th minute for Cassie Thomas' side.
But the hosts' celebrations didn't last long, as Greenough struck her second, which proved to be the winner and guarantee her club's top-flight status.
The three points means that Tudno have leapfrogged Cyncoed Ladies into sixth place with fourteen points and one game remaining. The Mighty Oaks from Cardiff have thirteen points with four games to go, but with Briton Ferry in last, with just two points and five games to go and with Rhyl on four points with two games to go, it means that even if Briton Ferry defy the odds to win all of their remaining five games; the Lilywhites cannot catch their coastal-rivals and top-flight football is secured for Llandudno Ladies for another season.