Jason Day carded a two-under-par 69 to break into a share of the lead at the RBC Heritage in Hilton Head, South Carolina.
Kevin Chappell and Charley Hoffman sit atop the leaderboard with Day on six-under and are closely followed by Luke Donald, Russell Knox and Patton Kizzire as they are on five-under.
Meanwhile, reigning Open Championship winner Zach Johnson climbed up the leaderboard on Friday and is three strokes adrift of the lead in a tie for 11th.
Day, who finished in a tie for 10th at the Masters last week, began his round on sour note as he missed a 15-foot par putt to record a bogey at the 17th. However, he followed it up with a birdie at the 18th before going on to make successive birdies at the second and third to start his back nine.
Just when things seemed to be going well for the world number one, he registered a bogey at the fifth after his tee shot found the tree outline. However, Day, who is looking to win his third title in four tournaments after triumphing at the Arnold Palmer Invitational and WGC-Dell Match Play, atoned for his mistake with a 20-foot birdie putt at the sixth.
Chappell fired his second consecutive round of 68, which saw him begin the same way Day did, with a birdie and bogey on his front nine. However, he shifted his game to the next level on his back nine as he made three birdies in the space of four holes.
Hoffman kicked off his round with an incredible 36-foot birdie putt at the 10th before two more followed at the 12th and 13th. However, his strong start was sullied by bogeys at the 15th and 18th. Despite his disappointing finish on his front nine, Hoffman did make two birdies on his back nine to put himself in a share of the lead.
Donald, who was in a share of the lead overnight, dropped down the leaderboard after recording a level-par 71, which included two birdies and a double bogey at the par-three 14th. Knox on the other hand surged up 54 spots on the leaderboard following his round of 65, which consisted of eight birdies, including a 24-foot putt at the 18th, and two bogeys.
Kizzire registered a 68, which saw him make five birdies, the highlight of which was a 41-foot putt at the 18th, and two bogeys.
Meanwhile, Johnson also carded a 68, which consisted of six birdies and three bogeys.
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