Rising Star River Grace, 14, Takes Home 2013 Broadcom MASTERS Grand Prize October 01, 2013 Austin McCoyBroadcom MASTERS 2013 winnersEitan AcksJohann Kailey-SteinerJoshua WentzelJulienne SauerKeoni GandallKrystal HortonMihir GarimellaRebecca Bloomfield Prev Broadcom MASTERS Meet Commander-in-Chief, Talk STEM Education in the Oval Office Next MASTERS Finalists Impress the Public with Sophisticated Science Projects