Johnson holed-out for bird from the last fairway to close a four-under 66 at TPC Southwind and draw clear of playing accomplice Andrew Putnam.
Triumph is Johnson’s second of the season and eighteenth of his PGA Tour vocation, with the win likewise observing him jump Justin Thomas as world No 1 in front of the second major of the year.
The combine went into the last cycle five strokes clear of whatever remains of the field, just for Johnson to open up a two-shot pad when Putnam missed the opening green in three on his way to a twofold intruder.
Johnson expanded his favorable position with a two-putt birdie at the third yet missed from nine feet to spare standard at the fifth, where Putnam additionally dropped a shot subsequent to requiring two endeavors from six feet.
Putnam posted a 10-foot birdie at the seventh to achieve the kill two the pace, before Johnson holed a 15-footer to spare standard at the twelfth and bumped in for a short proximity birdie at the standard four next.
With none of the pursuing pack ready to put weight on the last gathering, Johnson recouped from discovering trees off the sixteenth tee to influence birdie before terminating a shocking 169-yard to falcon at the last.