ミッドウェストリーグ
Rickles spent the 2012 season with the Single-A Midwest League Burlington Bees, for whom he threw out 43% of attempted base stealers. In 2013, he played for the Class A Midwest League Beloit Snappers (for whom the threw out 42% of attempted base stealers) and the Double-A Texas League Midland RockHounds. He was voted Midwest League Player of the Week on July 29, 2013.