Dustin Johnson holds 4-stroke lead ahead of weekend at US Open

Dustin Johnson reacts after making a putt for birdie on the fourth green during the second round of the U.S. Open Golf Championship, Friday, June 15, 2018, in Southampton, N.Y. (AP Photo/Seth Wenig)

Dustin Johnson hits an approach shot on the second hole during the second round of the U.S. Open Golf Championship, Friday, June 15, 2018, in Southampton, N.Y. (AP Photo/Frank Franklin II)

Dustin Johnson lines up a putt on the 15th green during the second round of the U.S. Open Golf Championship, Friday, June 15, 2018, in Southampton, N.Y. (AP Photo/Carolyn Kaster)

Scott Piercy checks his lie on the fifth green during the second round of the U.S. Open Golf Championship, Friday, June 15, 2018, in Southampton, N.Y. (AP Photo/Seth Wenig)

Charley Hoffman hits an approach shot on the 12th hole during the second round of the U.S. Open Golf Championship, Friday, June 15, 2018, in Southampton, N.Y. (AP Photo/Julio Cortez)

SOUTHAMPTON, N.Y. — Dustin Johnson handled the worst of the weather and wound up as the sole survivor to par at the U.S. Open, taking a four-shot lead into the weekend at Shinnecock Hills.

Johnson dropped only one shot Friday morning in wind and two hours of light rain that made the course play even longer. He made a 45-foot birdie putt on the par-3 seventh hole for a 3-under 67.

In perfect scoring conditions in the afternoon, no one could catch him.

Ian Poulter was one shot behind until a triple bogey on his second-to-last hole. Charley Hoffman was under par until a bogey on his final hole.

Johnson was at 4-under 136, four shots ahead of Hoffman and Scott Piercy.

The two golfers holding even in the U.S. Open have Las Vegas ties. Hoffman attended UNLV while Piercy attended Bonanza High School.

The weekend will not include Tiger Woods, who shot 72 to miss the cut for the fifth time in his last eight majors. Jordan Spieth joined him with a bogey-bogey finish to miss the cut by one shot.