 On May 17, 1900, he was traded to Kansas City Blues of the newly established American League as part of a trade that sent John Ganzel to Chicago in exchange for Dungan, Bill Phyle, and Bill Everitt.Dungan played first base appeared in 112 games for Kansas City during the 1900 season.He compiled a .350 batting average, reported in some sources as .337, best in the American League among players with at least 50 games played.