Hilbrunner was a standout soccer player, as she was the starting center midfielder and served as captain throughout her senior campaign. In each of the three preceeding, Hilbrunner was a starting defender. She also played for the F.C. Greater Boston Bolts, which were the 2008 Needham Tournament champions in 2008. She was a member of Student Council and was a National Honor Society officer on top of her many other clubs and activities.