Brett attended Moline High School and graduated in 2015
He was named captain of the All-Metro team his senior year. He went on to play four years of baseball at Austin Peay State University in Clarksville, Tennessee. He also played four years in the Northwoods League for the Mankato Moondogs in Mankato, Minnesota. For Austin Peay he holds the all time record for pitching appearances and for the Moondogs he holds career records for Wins, innings pitched, and games started.