Dustin Johnson took over the lead at the 2019 RBC Heritage after Shane Lowry was on top of the leaderboard in each of the first two rounds.
Johnson shot a 68 in Round 3 on Saturday to get him to 10 strokes under par for the tournament. Lowry had built a three-stroke lead during the round, but he struggled down the stretch, and the American took advantage to get on top with one round remaining at Harbour Town Golf Links in Hilton Head, South Carolina.
Lowry, Ian Poulter and Rory Sabbatini all sit one stroke back at nine shots under par.