Coquitlam, BC (Sports Network) - Fifteen-year-old amateur Lydia Ko only needed an even-par 72 on Saturday to take sole possession of the third-round lead of the Canadian Women's Open.

Ko, a second-round co-leader and this year's U.S. Women's Amateur Champion, finished 54 holes at 8-under 208 and is one stroke clear at Vancouver Golf Club.

Ko is chasing history and she's already made some earlier this year.

Ko became the youngest winner of a professional golf event earlier this year when, at the age of 14, she captured the Women's NSW Open.

If she were to make it to the winner's circle on Sunday, she would become the youngest winner in LPGA Tour history and the first amateur to win on tour since JoAnne Carner in 1969.

There is quite a collection of talent in second to block Ko from getting into the record book.

Stacy Lewis, the leading money winner this year on tour, fired a 6-under 66 and is tied with former world No. 1 Jiyai Shin (69), reigning Evian Masters champion Inbee Park (70) and second-round co-leader Chella Choi (73). That group is one back at 7-under par.

Sydnee Michaels (69) and Moira Dunn (72) share sixth at minus-5.

First-round leader and world No. 1 Yani Tseng played poorly again on Saturday. She struggled to a 2-over 74 in round three and is tied for 21st at 1-under- par 215.

MORE TO FOLLOW.

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