Brooks Koepka set a course record at Bethpage Black and tied a tournament record Thursday when he shot 63 in the first round of the 2019 PGA Championship, per ESPN.
The event's defending champion had no bogeys and seven birdies in the round to get to seven strokes under par to begin the tournament. No one else in the morning session was better than three-under.
This article will be updated to provide more information on this story as it becomes available.
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