Brett earned two varsity letters in baseball and one letter in basketball. During his senior season, Brett threw a no-hitter in the district semi-finals. He was also named first team all MAC.
Brett was a member of the 1991 State Championship Baseball Team.
He attended Ohio Northern University where he earned four varsity letters in baseball. At ONU, Brett set multiple school records including most wins in a season (14), most complete games in a season (12), most strikeouts in a season (134) and most shutouts in a season (5). Brett is also the ONU career leader in wins (31), shutouts (9), innings pitched (320) and strikeouts (392). Brett earned First Team All-American honors during his senior season. He also set an NCAA Division III record with 392 career strikeouts.
Brett went on to play two seasons in the Atlanta Braves organization.