Stinnett was a three-year letterwinner at Carl Junction (Mo.) High School where she helped lead the team to three conference and two district titles during her prep career. As a right-side attacker during her senior year, she registered 161 kills and 215 digs on her way to earning all-district, all-conference and team MVP accolades. Stinett was a two-time national qualifier with the Ozark Juniors club
Kenzie is the daughter of Earl and Amber Stinnett, and has two older siblings, Phillip and Courtney. Stinnett is set to major in kinesiology (exercise science) at Arkansas.