Wyndham Clark has the lowest 36-hole score ever for a U.S. Open at Shinnecock Hills. He finished off a 64 with two pars in the morning to complete the first round.

The USGA set up a different course at Shinnecock Hills to handle strong wind Thursday. When the wind subsided later, Wyndham Clark seemed to play a different U.S. Open.

Rory McIlroy was in a larger group on one under but would have been higher had he not bogeyed his final two holes.