Duncan returns to the Marshall women's soccer program as one of the most decorated players in Thundering Herd history. A four-year letterwinner at forward from 2007-2010, she holds the Marshall record for most career goals (23) and most career game winning goals (eight). In 2009, she tied for most consecutive matches with a goal (four). She boasts the second-most career shots with 140; third-most career points with 54 and twice tied for third-most goals in a season with nine (2008, 2009).
Other accolades include second team All-C-USA in (2009, 2010), C-USA Player of the Week (2008, 2010), second team NSCAA All-Region (2010), honorable mention NSCAA Scholar All-Region (2009), second team Academic All-C-USA (2009) and C-USA Commissioner's Honor Roll (2007-10).
Prior to Marshall, Duncan played for the Scottish women's national team at the U17 and U19 levels and was a squad player for the full national team.
After she graduated with a bachelor's in exercise science in 2011, Duncan decided to continue her career at Marshall by pursuing a master's degree in sport administration, graduating in May 2013. During graduate school she worked as a personal trainer at the Marshall Campus Recreation Center.
Duncan has been working with the West Virginia Soccer Club girl's academy since 2011. She is the U10 head coach and assists the U14 girls team. She holds a U.S. Soccer D Coaching License.