Lydia Ko, 17, wins LPGA Tour rookie of the yearDAYTONA BEACH, Fla. (AP) Lydia Ko has become the youngest player to win the LPGA Tour's rookie of the year award. The 17-year-old Ko clinched the points-basedSI Staff|Share on FacebookShare on XAdd us as a preferred sourceAdd us as a preferred source on GoogleFollowLoading recommendations... Please wait while we load personalized content recommendationsPublished Nov 12, 2014 | Modified Nov 12, 2014SI STAFFShare on FacebookShare on X