Youmin Hwang fired a course-record, 10-under-par 62 on Thursday, and she holds a three-shot lead at the midway point of the Lotte Championship in Ewa Beach, Hawaii.

The 22-year-old South Korean eagled the opening hole in the second round at Hoakalei Country Club. She added nine birdies and one bogey the rest of the way, leaving her at 15-under 129.

Jessica Porvasnik and first-round leader Akie Iwai of Japan are tied for second at 12 under. Porvasnik carded a 65 on Thursday, and Iwai shot a 68.

Australia's Gabriela Ruffels and Japan's Nasa Hataoka, who each produced a 69 in the second round, share fourth place at 10 under.

Brooke Matthews (second-round 67) and Thailand's Pornanong Phatlum (69) are 9 under, tied for sixth. World No. 1 Nelly Korda (67), South Korea's Ina Yoon (65), Japan'

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