Unheralded American Ryggs Johnston has won his first professional title by claiming the Australian Open by three stokes, while South Korea’s Jiyai Shin claimed her second Women’s Australian Open which was played concurrently at two courses on the famed Melbourne sand belt.

The world’s 954th-ranked golfer caused a major upset at Kingston Heath, but despite his stirring win, the future of the Australian Open remains clouded.

Johnston, an unheralded American player, celebrated his first professional victory Sunday with a three-stroke triumph in the Australian Open, while South Korea's Jiyai Shin became a two-time winner of the Women's Australian Open, which was played concurrently at two courses on the famed Melbourne Sandbelt.