South Korean Jenny Shin shot a bogey-free, 7-under-66 Thursday for a one-stroke lead after the opening round at the KPMG Women's PGA Championship, the second major of the season.

Canadian teenager Brooke Henderson bogeyed the final hole to drop a shot back after Shin birdied the 18th at the Westchester Country Club.

Shin had five birdies and an eagle on the par-5, 15th. The 17-year-old Henderson, playing on a sponsor exemption, eagled the par-5, 12th.

Hall of Famer Karrie Webb birdied three of the first four holes and finished at 68. The 40-year-old Webb, who started on the back nine, had a bogey-free round until she dropped a shot on the seventh hole.