Playing partners Carl Pettersson and Robert Garrigus had already teed off and after consulting with the PGA, tournament officials allowed Harman to tee off alone for the first round.

In 2015, Harman held the 54 hole lead at the Travelers Championship, but would miss the playoff, won by Bubba Watson, by one stroke and finished in solo third.

[citation needed] On August 30, 2015, at The Barclays at Plainfield Country Club in Edison, New Jersey, Harman became the third player in PGA Tour history to have two aces in the same round.

[8][9] On May 7, 2017, Harman won the Wells Fargo Championship held at Eagle Point Golf Club in Wilmington, North Carolina, for his second PGA Tour win.

Harman made a 28-foot putt on the 18th hole to win by one stroke over Dustin Johnson and Pat Perez, who finished at 9-under-par.

[12] Harman finished in solo second at the 2022 World Wide Technology Championship at Mayakoba, four shots behind winner Russell Henley.

In July 2023, Harman won the Open Championship at Royal Liverpool by six strokes for his first major championship title, becoming only the third left-handed Open champion (alongside Bob Charles and Phil Mickelson), and fifth left-handed major champion (with Mike Weir and Bubba Watson).

[14] In September 2023, Harman played on the U.S. team in the 2023 Ryder Cup at Marco Simone Golf and Country Club in Guidonia, Rome, Italy.

1Canceled due to COVID-19 pandemic QF, R16, R32, R64 = Round in which player lost in match play "T" = tied NT = No tournament Note that the Championship and Invitational were discontinued from 2022.