ノースウエストアーカンソー・ナチュラルズ
Kaaihue split between the Single-A Advanced Wilmington Blue Rocks and Wichita. In , Kaaihue played for Kansas City's new Double-A affiliate, the Northwest Arkansas Naturals. There, he led the minor leagues in walks, with 104. He also played for the Triple-A Omaha Royals.