Ludvig Aberg fired a 6-under 64 in his second round Friday to take a one-shot lead into the weekend at the RSM Classic in St Simons Island, Georgia.
The Swedish up-and-comer is at 11-under 131 for a narrow edge over Denny McCarthy, Sam Ryder and Eric Cole. Aberg, who received his card this summer through the PGA Tour University program and played well at the Ryder Cup, is seeking his first win on tour.
Aberg has remained bogey-free through two rounds, one played at Sea Island Golf Club's Seaside course and one at its Plantation course.
Aberg's 64 came at Seaside, where he birdied three holes on each side, finishing off with a birdie putt at the par-4 18th hole.
Cole and McCarthy played Seaside on Friday and shot 66 and 67, respectively.
Ryder rocketed into the tie for second with a 7-under 65 at Plantation.
Ryder entered the week No 60 in the FedEx Cup Fall series with only one tournament to go.
Finishing in the top 60 would give Ryder and others a berth into two signature events this winter, the AT&T Pebble Beach Pro-Am and the Genesis Invitational.
Austin Eckroat (68 at Seaside), Peter Kuest (66 at Seaside), Tyler Duncan (65 at Plantation), Matt Kuchar (68 at Plantation) and Ben Kohles (67 at Plantation) are tied at 9 under.