It's kept him from contending more since his return to the PGA Tour and he thinks he found a fix.
“I’ve worked hard the last few months and it’s nice to see," Koepka said after an opening 64 at the RBC Canadian Open. "We just changed the ball position a little bit, moved it a little bit further back. Felt like, with the ball position being up a little bit it was creating a little bit of a push. Trying to get away from the technical side of it and just focus on that ball position and then my mind kind of clears from there. Just make a stroke, which has been different than the mechanical stuff we’ve been doing the last six months.”
Koepka made seven birdies in his last 10 holes including three straight from 9-11 and then making four in the last five holes. He was fifth in strokes gained/putting in Round 1 at plus-3.491. He's tied for the lead with Sahith Theegala, Emiliano Grillo, Eric Cole, Sam Burns and Matthew Anderson.