Jason Dufner’s front nine in Round 3 of the RBC Heritage was about as wild as it gets. The only thing missing was a hole-in-one.

The 2013 PGA Championship winner had three bogeys, one birdie, and two eagles — yup, two of them — all in the first nine holes. His first eagle was on No. 2 when he calmly drained an 11-foot putt from the fringe, and the second came soon after on the par-5 fifth, with a little more drama.

He pitched in his third shot from 99 feet away and nailed the beautiful hole-out.

Dufner went bogey-free on the back nine, collecting four more birdies with three straight on No. 14 to No. 16. Through three rounds, Dufner has shot a 68, 67, and 65, seemingly getting stronger as the tournament wears on.

“I think it’s a combination of a lot of things,” Dufner said when asked about what’s clicking this week. “I worked really hard through March to get to this point, leading into last week at Augusta. I had kind of an up and down week last week, but I still felt good so it’s kind of to the point where I can just go play.”

Round 2 leaders Graham DeLaet and Luke Donald shot a 69 and 72, respectively, unable to keep pace with Dufner’s surge to the top of the leaderboard. DeLaet however, only trails Dufner by one shot at 12-under while Donald faces a four-shot deficit heading into Sunday.

Kevin Kisner made a significant jump up the leaderboard with a 5-under 66 in Round 3, going from 10th place to tied for third with Webb Simpson at 11-under. Simpson had himself an eagle on No. 5 as well after holing a 22-foot putt.

The final round of the RBC Heritage tees off at 8:21 a.m. Eastern on Sunday. Dufner and DeLaet will tee off in the final group at 2:00 p.m.

h/t: espn.com, pgatour.com