Smith eagled the 72nd hole of the 2015 U.S. Open at Chambers Bay to finish in a tie for fourth, earning a spot in the 2016 championship, in which he finished tied for 59th. Smith, who is making his fourth U.S. Open appearance, won his first PGA Tour event in 2017, capturing the Zurich Classic of New Orleans with partner Jonas Blixt. Before turning professional, Smith won the 2013 Australian Amateur. He also is a two-time Australian Amateur Stroke Play champion, and he won the 2011 Australian Boys Amateur. He won consecutive Australian PGA titles (2017 and 2018), an event co-sanctioned by the European Tour and PGA Tour of Australasia.