U.S. Open champion Matt Fitzpatrick shot his lowest round on the PGA Tour with a 63 to take a one-shot lead over Patrick Cantlay through three rounds at the RBC Heritage. Fitzpatrick had six birdies and a hole-out for eagle on the par-4 third hole and was at 14 under. Cantlay, who lost in a playoff to Jordan Spieth a year ago, shot 66 to put himself in position for another chance at victory. Masters champ Jon Rahm thrilled the gallery with three straight birdies to open the round, but could not sustain that momentum and was at 8 under.