Kevin Kisner made a five-foot par-saving putt at the final hole to clinch a one-stroke victory at the US PGA event in Fort Worth, Texas.
Kisner carded a closing four-under 66 to finish at 10-under-par 270 at Colonial Country Club, securing his second career victory on the Tour, to go with six runner-up finishes.
"I'm just happy to win any tournament, but especially here. I love this place," Kisner said.
Fellow Americans Jordan Spieth (65) and Sean O'Hair (66) and Spaniard Jon Rahm (66) tied for second on nine under.
Rahm had the best chance to force a playoff, but missed a 10-foot birdie putt at the last.
Overnight leader Webb Simpson (71) bogeyed the par-four 18th to finish two shots behind.
Curtis Luck and Marc Leishman finished in a tie for 34th to be the leading Australians at one over.
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