DALY CITY, Calif. — So Yeon Ryu shot a 2-under 70 on Friday afternoon at difficult Lake Merced to take a one-stroke lead over follow South Korean player Sei Young Kim and American Ryann O'Toole in the LPGA MEDIHEAL Championship.
Tied for the first-round lead with Eun-Hee Ji and Anne van Dam after a 67, Ryu chipped in for birdie from the fringe on the par-3 12th, but gave back the stroke with a bogey on the par-4 16th after advancing a chip from deep rough only to the fringe.
''It was just a grinding day,'' Ryu said.