J.J. Spaun is the U.S. Open leader at Oakmont after a relatively calm day compared with everyone else. Spaun played bogey-free for a 66 that matches the lowest opening round for a U.S. Open at Oakmont. He leads by one over Thriston Lawrence. Brooks Koepka is back in the major mix with a 68. So is Jon Rahm at 69. They were among 10 players to break par, so Oakmont was plenty tough. Scottie Scheffler made five bogeys in his round of 73. Rory McIlroy shot a 41 on his second nine and shot 74. Oakmont was as tough as advertised.
