PRATTVILLE, Alabama (AP) - Defending champion Lexi Thompson shot a 3-under 69 on Friday to take a one-stroke lead into the weekend at the Navistar LPGA Classic.

The 17-year-old Thompson had a 12-under 132 total on the links-style Senator course at the Robert Trent Jones Golf Trail's Capitol Hill complex. She matched the tournament record Thursday with a career-best 63.

Last year, Thompson became the youngest champion in LPGA Tour history at age 16, winning by five strokes. Fifteen-year-old amateur Lydia Ko broke the record last month in the Canadian Women's Open.

Mindy Kim and Mi Jung Hur were a stroke back. They played in the same group and each shot 65.

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