The pro Webb Simpson lives near the seventh hole and knows the ins and outs of the course where the P.G.A. Championship will be played.

Masters champion Rory McIlroy, making his first major start since completing the career Grand Slam, reached the midway point of his opening round to the PGA Championship five shots back of early co-leader and European Ryder Cup captain Luke Donald.

Scottie Scheffler, Rory McIlroy, and Xander Schauffele were all left deeply frustrated during the first round of the PGA Championship. The World’s No.1, No.2 and No.3, who started their round on the back nine, all took double bogey sixes at the par four 16th in to drop down the standings amid much discussion.