AURORA, Ontario -- American Annie Park fired a 7-under 65 on Thursday, Aug. 22, to grab a one-shot lead over the field at the CP Women's Open.

Park, 24, carded an eagle, seven birdies and two bogeys on her round at Magna Golf Club to move out front by a shot over a tight leaderboard that features a five-way tie for second place.

Leading the pack of players who kicked off the $2.25 million event with a 66 are defending champion Brooke Henderson and fellow Canadian Anne-Catherine Tanguay. Also knotted at 6 under are world No. 1 Jin Young Ko of South Korea, Denmark's Nicole Broch Larsen and Thaliand's Pajaree Anannarukarn.

"It was really cold and windy, and I was like, ‘Uh-oh,'" Henderson told reporters following her round. "But in the back of my head, it was also sort of like Sunday last year, so figured it might not be a bad thing.

"To get a solid round like this in in front of them I think is really a confidence booster for me. ... Gives me a lot of momentum going into the next three days."

Hot on their heels at 5 under are Hong Kong's Tiffany Chan, Americans Marissa Steen and Megan Khang and Sweden's Louise Ridderstrom.

Five others are another stroke back.

Twelve-year-old Canadian amateur Michelle Liu, the youngest player in tournament history, struggled to a 9-over 81. Liu earned her spot in the field after capturing low-Canadian honors at the 2019 Canadian Women's Amateur.

The CP Women's Open marks the final week of automatic qualifying for the top 10 U.S. players aiming to make the Solheim Cup team. The 2019 event will be held Sept. 13-15 at the PGA Centenary Course at The Gleneagles Hotel in Perthshire, Scotland.

Five players can play their way into the top eight of the Team USA Solheim Cup points standings with a strong finish at the CP Women's Open.

Brittany Altomare, who currently sits eighth with 257.5 points, has the most chances with many combinations. She fired a 1-under 71 and stands tied for 46th.

Also in the hunt is Ally McDonald, who stands tied for 30th after shooting 70. Cristie Kerr (76), Angel Yin (69) and Stacy Lewis (70) all need a win in Canada to make the top 10.

2009 CP Women's Open champion Suzann Pettersen of Norway, who last week was named to the European Solheim Cup Team after sitting out all of 2018 and much of 2019 on maternity leave, returned to action with an opening round of 71 and stands tied for 46th.