Korda, the No. 2 player in women's golf, opened with a1-over 71 at Aronimink Golf Club and was four shots out of the lead.
Korda, the victor of three titles on the LPGA Tour, was seeking her first major victory.
Willett's score of 20-under-par was the second lowest in tournament history.
It was mainly my team and I trying to figure. with everything that's going on in the world. making sure we're not putting people at risk when we come over, but at the same time when I go home, not putting my family at risk. "The last bogey on 18 was disappointing, too".
"I remember I teed off first on Thursday morning at like 6:30 or something", said Nordqvist, "and then played in the last group on Sunday. I just want to take each shot at a time and just keep focus, and the results will follow".
A wild tee shot at No. 7 led to his only bogey of the round, but he bounced back for a birdie at the next and outplayed playing partner Patrick Reed, the American who leads the Race to Dubai and opened with a 70. 11 and 12 and made her lone first-nine birdie on the par-5 16th. I hit a lot of good shots and kept my patience up out there.
'And I think I've got to do it through a bit more freedom and through a position of gratitude of where I am in my career and what I've achieved, and I just see everything as, in a sense, a bonus.
Hatton carded an eagle, five birdies and a solitary bogey at Wentworth to finish six under par, two shots ahead of Scottish Open victor Aaron Rai, Matthias Schwab, Scott Hend and JB Hansen.
'Health-wise, I don't think it would be good for me long term and physically, the amount of work that's involved in that. "I put myself in a good spot so hopefully I have a chance tomorrow".
Park is a three-time victor of the KPMG Women's PGA Championship and would tie Mickey Wright for the most in a career with a win.
"I was pretty calm". Pagdanganan hasn't had a bogey since the first round. "I'd try to land it a little short so I can have some release", she said.
Compatriot Jodi Ewart Shadoff is a shot further back at one over after she bogeyed three of her final four holes to record a two-over 72 to fall out of contention.
Danielle Kang, Lydia Ko, Gabby Lopez, Carlota Ciganda, Linnea Strom and Cydney Clanton were a stroke back.
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