Lahiri's card could well have been an even better and as low as a 61 or 62 had some of the short putts dropped.
The Indian is now four shots behind the leader Matt Every (61), who equaled the course record of 61 set by another Indian, Arjun Atwal, who did so when he won the event in 2010.
Lahiri, whose new set of irons arrived just before the Wyndham Championships, found them great and they did their job and provided him with ample birdie opportunities, but unfortunately his putting woes continued to bother him.
"But this is a kind of a course, where even three-under would push you back."
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The other Indian in the fray this week is Atwal, a former winner of this event in 2010. He shot one-under 69 in the first round and was Tied-86th. Atwal is the first and to-date the only Indian to win on the PGA Tour.
Lahiri added, "I hit it great and the irons, which my coach, Vijay (Divecha) Sir and I decide to build on, were fine. We had been working on it as things did not work out last few weeks. But they were fine on Thursday, unfortunately the putter did not quite match it.
Every is one stroke ahead of Henrik Stenson (62), while another former Wyndham winner Webb Simpson was at 63 along with Cameron Smith, Vaughn Taylor, Tim Wilkinson, Harold Varner III, Brian Campbell and Sam Saunders.
Davis Love III -- the 53-year-old player who has won this tournament three times, most recently in 2015 -- matched Martin Flores and Rick Lamb with a 64.
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