Nisbet hauled back compatriot Pilkadaris, who had held a five-shot lead after three rounds, with a superb back nine which included an eagle at the par-5 10th.

He finished with a course record 27-under 260 across four rounds.

Pilkadaris carded a final round one-under 70 to secure outright second, four strokes ahead of fellow Australians David Bransdon and Callan O'Reilly, and Americans Kurt Kitayama and Jarin Todd.