Kieschnick was never given the opportunity to play a major league game for the Devil Rays. He was instead consigned to the minor leagues and shuffled between the Gulf Coast League Devil Rays, St. Petersburg Devil Rays, Durham Bulls and Edmonton Trappers during his two-year stint with the organization. In , he was loaned out to the Anaheim Angels for the majority of the year. At the end of the season, Kieschnick became a free agent for the first time in his career and subsequently signed for the Cincinnati Reds.