Inbee Park rose to No . 1 in the world rankings with win at the BMW Championship . The win at Mission Hills CC the second major triumph of Park 's career . World No . 1 Stacy Lewis finished two strokes behind Park . Park 's fellow South Korean Ryu Everything has been going the right way this season . So - Yeon was second on the leaderboard .
Inbee Park rose to No . 1 in the world rankings with win at the BMW Championship . The win at Mission Hills CC the second major triumph of Park 's career . World No . 1 Stacy Lewis finished two strokes behind Park . Park 's fellow South Korean Ryu So - Yeon was second on the leaderboard .