(Officialsportsbetting.com) – Jason Dufner took advantage of two eagles and a run of three consecutive birdies to take a one-stroke lead over Canadian Graham DeLaet in the RBC Heritage in South Carolina on Saturday. Dufner, the 2013 PGA Championship winner, collected eagles on the par-five second and fifth holes, then struck for birdies at the 14th through 16th holes for a round of six-under 65 at Harbour Town Golf Links on Hilton Head Island. “It was a little bit of a roller-coaster on the front nine, and it’s always nice to get an eagle, let alone two,” Dufner told reporters.