CHARLOTTE, N.C. — Jason Dufner’s game was going nowhere, so he changed everything from his swing coach to his equipment to his caddie.

It didn’t get any better.

He at least is starting to see signs of it coming together with an 8-under 63 on Friday in the Wells Fargo Championship, matching his career-low score on the PGA Tour and giving him a one-shot lead going into the weekend at Quail Hollow.

Dufner considers it the best two rounds he has put together since the 2017 Memorial, which also is the last time he had a 36-hole lead.

Dufner was at 11-under 131.

Joel Dahmen made his first bogey of the week.