Prior to Oregon Tech:
Duncan spent two seasons at College of Southern Idaho where the pitcher finished a brilliant two year career with a 35-12 overall record in the circle for the Golden Eagles. In both the 2011 and 2012 seasons Duncan struck out 189 batters and added three saves to earn Second-Team All-Region recognition in her final season at Southern Idaho. A Prairie High School graduate in Battle Ground, Wash., Duncan was named to the first-team all-league squad, along with first-team all-region accolades. Duncan was also a representative in the Washington Senior All-Star game in 2010.