GREENSBORO, N.C. — Si Woo Kim followed his tournament-record 10-under 60 with a third-round 64 on Saturday to increase his lead to four strokes in the Wyndham Championship. The 21-year-old South Korean player had an 18-under 192 total at Sedgefield, a stroke off the tournament 54-hole record set by Carl Pettersson in his 2008 victory.
