The event was hosted at the Lamana Q Club in Port Moresby on Sunday.
Ovia looked set for a clean sweep when he won the first three frames – 54-42, 66-24, 49-28 – convincingly.
English showed fight to win the 4th frame 64-44.
But Ovia put the result beyond doubt with a 58-34 win in the 5th frame to claim the title.
In the semi-finals played earlier, Ovia beat last year’s runner up Gavera Rima 3-0 in the best of five frames, while English defeated seasoned Francis Theseria in a thrilling 3-2 win.