リーガ・デ・ベイスボル・プロフェシオナル・デ・ラ・レプブリカ・ドミニカーナ
In 2008, he came to the United States to play in the independent Northern League with the Gary SouthShore RailCats. He posted a 1.69 earned run average in 42.2 innings pitched. Gary manager Greg Tagert later told the "Chicago Tribune" that Misawa "was the absolute best I’ve ever seen coming out the bullpen at our level." During the winter, Misawa played for the Caribes de Anzoátegui in the Venezuelan Professional Baseball League and pitched two thirds of an inning for the Leones del Escogido of the Dominican Professional Baseball League. In 2009, he played his final professional season with the Long Beach Armada of the Golden Baseball League.