Lydia Ko is seven shots behind leader Kim Sei-young . The U.S. Open champion has won three of her last four matches and leads the tournament by two shots. But the world No 1 could only finish on one-over par .
Lydia Ko is seven shots behind leader Kim Sei-young . Ko had been aiming for a 30th consecutive under-par round . But the world No 1 could only finish on one-over par .