Bryson DeChambeau was the big winner of the second round at the WGC-Workday Championship, but Brooks Koepka holds the lead heading into the weekend.
After opening with a 77 on Thursday, DeChambeau moved up 44 spots into a tie for 20th thanks to a course-record score of 64. The Scientist is now three-under par overall for the tournament.
Koepka began the day in a four-way tie for third place, but took sole possession of the lead at 11-under par. He finished the second round with a 66.
Here's the top of the leaderboard from the Concession Golf Club in Florida, via PGATour.