That is the best rating any participant has carded on the primary day of the six earlier U.S. Opens at Winged Foot, the world No. three ending one shot away from Patrick Reed, Thomas Pieters and Matthew Wolff and two away from Rory McIlroy and Lee Westwood.
Thomas, 27, is trying so as to add to his sole main triumph on the 2017 PGA Championship.
“65 is enjoyable irrespective of the place you play, particularly at Winged Foot,” he advised reporters.
“I used to be in a very good way of thinking, and I used to be targeted. I simply was sticking to my routine and taking part in each shot, versus getting forward of myself.
“It is a kind of rounds the place it is simply sort of like, subsequent factor you already know, you make the putt on 18, you are carried out for the day.”
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Tiger Woods, who has struggled for kind since golf resumed earlier this yr, completed on three-over after ending on a bogey and double bogey. He is tied with world No. 1 Dustin Johnson, a pre-tournament favourite having clinched the FedEx Cup earlier this month.
In the meantime, Phil Mickelson’s strained relationship with Winged Foot — the place he let slip a U.S. Open lead on the ultimate gap in 2006 — continues. He shot a nine-over 79.