Hideki Matsuyama leads the field after two rounds at the 2019 BMW Championship after shooting a course-record 63 Friday.
The Japanese star was in good shape after his Round 1 score of 69, but he was on fire in Round 2 at Medinah Country Club to end up 12 strokes under par. Tony Finau and Patrick Cantlay are tied for second place just one stroke back of the leader, while Justin Thomas and Xander Schauffele are among those still in contention.
There is no cut going into the weekend with only 69 golfers in the field, but every stroke matters as players try to get one of the 30 spots in the Tour Championship next week.