Wyndham Clark Holds Six-Shot Lead Through 54 Holes at U.S. Open

At Shinnecock Hills, Clark surged ahead in the third round with a six-shot advantage over his rivals. The lead represents the biggest margin through 54 holes since Rory McIlroy's eight-shot lead in 2011.

Clark's performance bolsters his championship hopes and could shape the rest of the U. S.

Open.