Ireland’s Séamus Power carded a five-under 66 to sit five shots back from leader Chesson Hadley following the second day of the Palmetto Championship at Congaree in South Carolina.
Hadley also shot 66 to go with his opening-round 65 to be 11-under overall, holding a two-stroke lead over world No 1 Dustin Johnson.
Hadley matched seven birdies with two bogeys on Friday while Johnson was tied for the lead through 17 holes before double-bogeying the par-four 18th to finish with a 68.
Their fellow American Tain Lee, appearing in only his third PGA Tour tournament, also carded a 68 to sit third, four strokes off the pace.
Starting on the back nine, Power mixed in a bogey on the 17th with birdies on the 15th and 18th before coming home strongly with four birdies, including at the par-three fifth.
His 66 moved him to six-under and a share of fourth with Americans Harris English, Chez Reavie and Pat Perez as well as South Africa’s Erik van Rooyen and Wilco Nienaber.
Pádraig Harrington’s second round of 72 meant the European Ryder Cup captain missed the cut by two shots.
Tyrrell Hatton was a further three strokes back at three-under after carding a 68, with fellow Englishmen Ian Poulter and Luke Donald another shot behind.
Meanwhile Tommy Fleetwood had a horror day which included five bogeys en route to a 75.
Collated second round scores from the Palmetto Championship (USA unless stated, Par 71)
131 Chesson Hadley 65 66
133 Dustin Johnson 65 68
135 Tain Lee 67 68
136 Harris English 67 69, Wilco Nienaber (Rsa) 68 68, Pat Perez 70 66, Séamus Power (Irl) 70 66, Chez Reavie 67 69, Erik van Rooyen (Rsa) 65 71
137 Garrick Higgo (Rsa) 68 69, Rob Oppenheim 69 68, Doc Redman 65 72, Patrick Rodgers 67 70
138 Henrik Norlander (Swe) 70 68, Hudson Swafford 68 70, Jhonattan Vegas (Ven) 66 72
139 Austin Cook 70 69, Tyrrell Hatton (Eng) 71 68, Vaughn Taylor 67 72
140 Byeong-Hun An (Kor) 67 73, Ryan Armour 71 69, Kevin Chappell 68 72, Luke Donald (Eng) 71 69, Danny Lee (Nzl) 67 73, Ian Poulter (Eng) 68 72, Nick Taylor (Can) 67 73, Davis Thompson 71 69, Bo Van Pelt 69 71
141 Jonathan Byrd 68 73, Broc Everett 69 72, Matthew Fitzpatrick (Eng) 71 70, Michael Gellerman 71 70, Rhein Gibson (Aus) 70 71, Bill Haas 71 70, Scott Harrington 70 71, Satoshi Kodaira (Jpn) 69 72, David Lipsky 71 70, Matthew NeSmith 72 69, Chengtsung Pan (Tai) 69 72, Scott Piercy 71 70, Wes Roach 64 77, Sam Ryder 67 74, Chase Seiffert 70 71
142 Tyler Duncan 70 72, Beau Hossler 71 71, Mark Hubbard 71 71, Russell Knox (Sco) 71 71, Anirban Lahiri (Ind) 69 73, Hank Lebioda 68 74, Roger Sloan (Can) 67 75, Brandt Snedeker 72 70, Ben Taylor (Eng) 72 70,
143 Aaron Baddeley (Aus) 70 73, Chris Baker 68 75, Joseph Bramlett 71 72, Rafael Campos (Pur) 73 70, Tommy Fleetwood (Eng) 68 75, Robert Garrigus 69 74, Will Gordon 68 75, J. B. Holmes 69 74, Sung Jae Im (Kor) 75 68, Richard S. Johnson (Swe) 67 76, Bryson Nimmer 68 75, Andrew Putnam 71 72, Adam Schenk 73 70, Robby Shelton 72 71, Josh Teater 68 75, Peter Uihlein 73 70
The following players missed the cut:
144 Kiradech Aphibarnrat (Tha) 67 77, Charlie Beljan 73 71, Sebastian Cappelen (Den) 71 73, James Hahn 70 74, Kevin Kisner 72 72, Jim Knous 69 75, Alexander Noren (Swe) 71 73, Shawn Stefani 70 74, Zack Sucher 71 73, D. J. Trahan 73 71, Kevin Tway 73 71
145 Jason Dufner 73 72, Brice Garnett 73 72, Pádraig Harrington (Irl) 73 72, Kramer Hickok 73 72, Brooks Koepka 72 73, Luke List 72 73, Tyler McCumber 71 74, Keith Mitchell 71 74, Sean O'Hair 73 72, D. A. Points 73 72, Camilo Villegas (Col) 73 72, Xinjun Zhang (Chn) 75 70
146 Ricky Barnes 72 74, Jonas Blixt (Swe) 72 74, Rafael Cabrera (Spa) 74 72, Brian Gay 72 74, Michael Gligic (Can) 73 73, David Hearn (Can) 73 73, J. J. Henry 72 74, Patton Kizzire 74 72, Martin Laird (Sco) 73 73, Grayson Murray 70 76
147 Ryan Blaum 72 75, Cody Blick 73 74, Derek Ernst 75 72, John Huh 75 72, Tom Lewis (Eng) 70 77, Brian Stuard 73 74, Martin Trainer 72 75, Harold Varner III 72 75
148 Mark Anderson 71 77, Scott Brown 69 79, Harrison Frazar 76 72, William McGirt 73 75, J. T. Poston 72 76, Andres Romero (Arg) 77 71, Scott Stallings 72 76, Sepp Straka (Aut) 74 74, Johnson Wagner 74 74, Richy Werenski 75 73, Vincent Whaley 73 75, Brendon de Jonge (Zim) 75 73
149 Roberto Castro 71 78, Lucas Glover 76 73, David Lingmerth (Swe) 76 73, Ben Martin 73 76
150 Lucas Bjerregaard (Den) 72 78, Bronson Burgoon 74 76, Matthew Every 74 76, John Pak 79 71
151 Ryan Brehm 79 72, Brant Peaper 78 73, Rory Sabbatini (Svk) 74 77, J. J. Spaun 74 77, Nick Watney 75 76, Omar Uresti 74 77
152 Dominic Bozzelli 80 72, Fabian Gomez (Arg) 74 78, Cole Hammer 75 77
153 John Rollins 76 77
154 Michael Kim 80 74
155 Kristoffer Ventura (Nor) 76 79
156 Greg Chalmers (Aus) 74 82, Kevin Stadler 75 81
157 Nelson Ledesma (Arg) 77 80, Ted Potter Jr. 77 80, Ted Purdy 77 80
158 Kelly Mitchum 78 80
163 Smylie Kaufman 78 85