GREENSBORO, N.C. — Si Woo Kim and Lucas Glover had putts for 59 on another low-scoring day in the Wyndham Championship on Friday.
Kim's 50-foot birdie try on his final hole, the par-4 ninth, slid by the right edge, leaving the South Korean with a tournament-record 10-under 60 and a two-stroke lead at 12-under 128.
"My irons and putting game is much better," Kim said. "Much more putting practice last week."
Glover shot 61, missing a 6-foot birdie putt on the par-4 17th and three-putting the par-4 18th for bogey in the PGA Tour's regular-season finale.
"I kind of lost of concentration a little bit, got eat up in the moment and kind of just wasn't focused," Glover said. "My fault, stupid, but it happens."
He was in a group of four at 10 under.
Kim and Glover missed chances to join Jim Furyk in breaking 60 on the tour this month. Furyk shot the first 58 in tour history Aug. 7 in the final round of the Travelers Championship. Six players, including Furyk, have shot 59.
At the Wyndham, Furyk shot 64 and also was 10 under with first-round co-leader Kevin Na (67) and Hideki Matsuyama (64).
Furyk said he was a little surprised at how low the scoring was. "The fairways are pretty firm," he said. "They're extremely quick, have a lot of slope in them. If you get the ball in the fairway, it's playing short, the ball is rolling. I can see guys hitting lot of wedges. I'm still shocked we had so many guys going that low."
Rafa Cabrera Bello, the other first-round co-leader, shot 67 and was 9 under.
"I felt I played good for the majority of the round, just the putts didn't want to drop in," said Cabrera Bello, fifth last week at the Olympics.
The top 125 in the FedEx Cup point standings after this tournament qualify for the next week's Barclays, the first of four playoff events. It also is the next-to-last chance to earn points for the Ryder Cup, which begins Sept. 30.
U.S. Amateur: Michigan sophomore Nick Carlson advanced to the semifinals in an unlikely run at Oakland Hills in Bloomfield Hills, Mich. Carlson of Hamilton, Mich., beat Illinois junior Dylan Meyer of Evansville, Ind., 3 and 1, taking the lead with a birdie chip-in on the par-4 14th that he celebrated with a running double fight pump. Carlson faces Australian Curtis Luck, 20, a 2-up winner over Pepperdine sophomore Sahith Theegala of Chino Hills, Calif. In the other quarterfinals, Oklahoma sophomore Brad Dalke of Norman, Okla., beat former Stanford player David Boote of Wales 3 and 2, and USC junior Jonah Texeira of Porter Ranch, Calif., topped LSU sophomore Luis Gagne of Orlando 3 and 2.