GOLD COAST, Australia — Harold Varner III didn’t really know the protocol, so he filled the Australian PGA Championship trophy with champagne, took a sip and then shared it around.

The 26-year-old American won a title for the first time outside the U.S. mini tours when he fired nine birdies in a closing 65 on Sunday to finish at 19 under, two clear of Australian journeyman Andrew Dodt and four ahead of 2013 Masters champion Adam Scott.

He finished runner-up after a playoff here last year, then had four top-10 finishes in his rookie season on the PGA Tour.