South Korea's Jin Young Ko, looking for her second LPGA victory of the season, holds a one-shot lead at the midpoint of the Cambia Portland Classic in West Linn, Ore. Ko shot a 5-under-par 67 at Oregon Golf Club on Friday to leave her at 8-under 136 through two rounds. Dryburgh is two shots ahead of Spain's Carlota Ciganda, another …
