After starting his third round with an albatross, Fox again started strongly in his final round, carding an eagle on the par-five opening hole.
A bogey quickly followed, but Fox rebounded with three birdies to make the turn at four-under. After dropping a shot on the par-four tenth, he then finished with aplomb, firing birdies on three of the last four holes.
That closing run secured third spot, finishing level with Pablo Larrazabal, and a shot behind third-round leader Jorge Campillo, who birdied the final two holes to bump Fox out of second place.
The result earns Fox NZ$231,000, and will see him rise from his current position of 126th in the world rankings, with his career-high ranking of 95 potentially soon to be under threat.
To get the day's top sports stories in your inbox, sign up to our newsletter here