Anirban Lahiri fired a superb five-under 67 to lie tied third while Shubhankar Sharma carded one-over 73 for a lowly Tied 64th spot after the opening day of the Memorial Tournament here Friday.
While Lahiri had a brilliant back nine, including a hat-trick of birdies, Sharma started his back nine with three bogeys in a row from 10th to 12th and a fourth one on 14th.
Sharma started early in second round, while Lahiri plays late.
Moore opened with five birdies in seven holes and had a great day finding fairways after missing the first one. He posted seven-under 65 for his best start ever at Muirfield Village.
He was one shot ahead of Jordan Spieth, who chipped in for birdie, chipped in for par and holed a 35-foot eagle putt.
Spieth sits one stroke off the 18-hole lead for the second week in a row
"It seems all the departments are coming together. It's been a while since I've been able to say that. So it's nice. I feel like my driving has gotten better. I've been working on my iron play, some technique stuff, some equipment stuff. And I think I'm in a good place."