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. Johnston shot a 68 on Sunday to finish at 18-under 269 and three clear of Australian Curtis Luck (68), who had briefly taken the lead on the final stretch at Kingston Heath. The 24-year-old Montana native, with a world ranking of 953rd, is the first American to win the Stonehaven Cup since PGA Tour star Jordan Spieth won it for a second time in 2016.