World No. 1 Scottie Scheffler was unable to produce his best golf on the final day of the U.S. Open as he watched his three-shot lead disappear amid tough conditions.

I felt like I did some good things out there. A few more putts drop today, I think it’s a little different story, Scheffler said.

The 125th U.S. Open at Oakmont Country Club is already proving to be a brutal test for the world’s best golfers. J.J. Spaun stunned everyone by carding a bogey-free 66, only the second such round ever at a U.S. Open held at Oakmont to grab the lead on Thursday. He sits at 4-under, just ahead of Thriston Lawrence at 3-under.

DeChambeau followed what his fellow SMU alum, the late Payne Stewart, accomplished 25 years earlier by winning the U.S. Open at Pinehurst. He is looking for his third U.S. Open title. After going even on the front nine, DeChambeau went 3-over on the back.

Scottie Scheffler has been on a winning spree since his last four appearances. He won back-to-back at the CJ Cup Byron Nelson and the PGA Championship.

Scottie Scheffler might be the overwhelming favorite heading into the U.S. Open this weekend ... from fans with a "financial investment" in his performance. Unsurprisingly, he said most golfers ...

The US Open continues Friday at Oakmont. The leaderboard is taking shape as the cut line looms. Here is how to watch with live updates and scores.