Aaron Fields attended High School at University of Detroit Jesuit. He helped lead U of D Jesuit to the State championship game as a senior in 2006. As a senior, he made the All-Catholic League team, as well as All- Detroit, All-District, All-Regional and 2nd team All-State. He played in the East-West All-Star game and the Detroit Negro League All-Star game. Aaron played 4 years at Wright State University. He was a member of the 2007 Horizon League All-Newcomer Team.

He helped lead Wright State to the Horizon League Tournament Title in 2009 as well as to the regular season title in 2010. In 2010, he was selected to the Horizon League All-Tournament team. After his 2010 season at Wright State, Fields was selected by the Cleveland Indians in the 42nd round of the MLB Draft. He played 2 seasons in the Cleveland Indians organization. Upon concluding his playing career, Aaron scouted for the Detroit Tigers from 2012-2013. He also served as an assistant coach for the U of D Jesuit baseball team from 2012-2014.