Carl Pettersson, Sean O'Hair, Harrison Frazar and Charles Howell III finished in a tie for second, and Howell now has six top five finishes at the Sony Open.

With six players sharing the lead at some stage early on Sunday, a winner looked hard to predict, but Wagner, who now has three PGA Tour titles, was confident of victory before he even arrived in Honolulu.

"I was definitely telling people to expect something early this year, which is a nice feeling," he said. "I'm kind of shy in a little shell. And for some reason I just had way more energy and confidence going into this year."

Jeff Maggert and Matt Every started the day with a two shot lead but quickly came back to the pack, creating a five-way lead along with Wagner, Frazar, and USPGA Champion Keegan Bradley.

As the overnight leaders and Bradley faded, Wagner and Frazar were joined by Michael Thompson at the turn, but it was the 31-year-old from Amarillo, Texas who proved his class.

He never relinquished the lead he took with a birdie on the 10th, staying bogey-free over the last twelve holes and establishing a cushion with another birdie on the 15th.

Wagner, who has appeared in just four majors, can now look forward to the Masters as well as spending his $990,000 prize money.