J.B. Williams of Danville, Ky., shot a 7-under 65 on Tuesday to take the first-round lead in the Junior PGA Championship, and defending champion Ariya Jutanugarn of Thailand had a 66 to top the girls' division.
The 17-year-old Williams had eight birdies and one bogey at Sycamore Hills. The 16-year-old Jutanugarn had seven birdies and a bogey.
Jim Liu of Smithtown, N.Y., and Cameron Champ of Sacramento, Calif., were tied for second in the boys' competition at 67. Beau Hossler, the 17-year-old Mission Viejo, Calif., player who tied for 29th in the U.S. Open in June, opened with a 68.
Jutanugarn had a one-stroke lead over Samantha Wagner of Windermere, Fla. Megan Khang of Rockland, Mass., shot a 68, and Jutanugarn's older sister, Moriya, had a 69.