Turned professional in 2015 after enjoying a successful amateur and collegiate career. He earned his place on the PGA TOUR for 2016-17 after finishing 15th on the now-Korn Ferry Tour Finals list.

Recorded his first PGA TOUR victory at the 2017 Greenbrier Classic, three weeks after finishing in a share of fifth place at the U.S. Open at Erin Hills. His second title quickly followed as he won that season’s Tour Championship at East Lake, becoming the first rookie to win the PGA TOUR’s end of season event. He was subsequently voted PGA TOUR Rookie of the Year for 2017.

Won his first DP World Tour title with victory at the WGC-HSBC Champions in October 2018, defeating Tony Finau on the first play-off hole. That victory, along with a share of second place at The 147th Open Championship and a top 20 finish at the season-ending DP World Tour Championship, Dubai, helped him seal fourth place in the 2018 Race to Dubai Rankings presented by Rolex.

He won the 2019 Sentry Tournament of Champions and he also went on to win the Gold Medal at the rescheduled Tokyo Olympic Games, finishing one stroke ahead of Rory Sabbatini of Slovakia.

Won the 2022 Zurich Classic of New Orleans alongside close friend Patrick Cantlay and then won three times in the space of three starts later that year at the Travelers Championship, JP McManus Invitational and Genesis Scottish Open, his first Rolex Series title.

Represented the United States at the 2019 Presidents Cup and was a Captain’s Pick for the rescheduled 2020 Ryder Cup at Whistling Straits where he won three points from four matches. Made his second Ryder Cup appearance at Marco Simone in 2023.

Made his long-awaited Major breakthrough at the 2024 US PGA Championship, going wire-to-wire at Valhalla as he won the Wanamaker Trophy by one stroke. Set a new record with his victory as his 21 under par total was the lowest winning score to par in Major Championship history.

Followed that less than two months later with his second Major Championship victory at The 152nd Open. Carded a final round 65 to win by two strokes at Royal Troon, becoming the first player since Brooks Koepka in 2018 to win two Majors in the same season.