American Jim Herman shot 63 on the last day of the Wyndham Championship -21 J Herman; -20 B Horschel; -18 K Kisner, W Simpson, D Redman, SW Kim (Kor), -17 Z Johnson, H Varner III Selected others: -12 S Lowry (Ire); -10 S Power (Ire); -9 P Casey (Eng) -9 Full Ranking
World Number 318 Jim Herman shot a closing seven-under-par 63 to win the Wyndham Championship with a stroke.
The 42-year-old American stopped fellow countryman Billy Horschel from claiming his third win on the PGA Tour.
Kim Si-woo, the 2017 Players champion, led the night after a 62 on Saturday with a hole-in-one, but returned three shots .
England's Paul Casey, second in last weekend's US PGA Championship, finished 31st out of nine under.
Irish Open champion Shane Lowry finished 23rd out of 12 under after a three-under-par 67, with America's Webb Simpson, Doc Redman and Kevin Kisner who join Kim in third place.
"I am clearly ecstatic. I am very emotional. L & # 39; said Herman, who started the last day three behind Kim." I came this week without expectations. "