Akie Iwai wins Portland Classic to join twin sister Chisato as rookie LPGA Tour champion  LPGAIwai wins Portland Classic for 1st LPGA Tour title  ESPNAkie Iwai joins her twin sister Chisato as LPGA champions in their rookie season, winning the Standard Portland Classic  Golf DigestAkie Iwai, trying to join twin as LPGA winner this season, leads in Portland  Yahoo SportsAkie Iwai’s bogey-free final round earns first LPGA title at Portland  AOL.com