Oklahoma State sophomore Morgan Hoffman just made the turn at 1 under in his first U.S. Open. Then he added another birdie to get to 10 under and into a tie for the lead. The Wyckoff, N.J., native bogeyed the fifth hole, but he bounced back with birdies on the second, eighth and 10th holes.

Hoffman was the Big 12 Player of the Year in 2008 and won the Phil Mickelson award, given to the nation’s top college player. Out of the 10 amateurs in the field, Hoffman is currently the only one in red figures. -- Ryan Pierce

We now have eight players tied for the lead at 1 under – three of whom, Rafael Cabrera-Bello, Mike Weir and K.J. Choi, are done for the day.

Also in that group are Ian Poulter, who has two holes remaining; Jason Dufner, who has three; and Craig Barlow, who has four.

Poulter actually has an 18-footer for birdie at the 17th hole to take sole possession of the lead while Barlow has a 10-footer on the par-5 sixth to do the same.

The afternoon wave is starting to tee off now. Rocco Mediate, who lost the 2008 U.S. Open in a playoff to Tiger Woods, has just birdied his first hole while amateur Morgan Hoffman did the same at No. 2.