|High School:||Manheim Township High School|
2017: Appeared in one game for the Lions.
Prior To Columbia: Mann came to Columbia as a three-sport athlete with 12 varsity letters at Manheim Township High School in lacrosse, swimming, and tennis. On the field, she excelled as an attacker with exponentially-growing performances each year. During her junior season, she produced 30 goals, 33 assists, 16 draw controls, and 32 caused turnovers. Her senior year, those ballooned to 42 goals, 76 assists, 20 draw controls, and 38 caused turnovers. A three-time Lancaster-Lebanon League All-Star, Mann was also named the Lebanon League Most Valuable Attacker in her senior year. She led the team to four consecutive league championships and three district titles. Aside from being the class valedictorian, Mann is also a National Merit Letter of Commendation recipient, an AP Scholar with Distinction, a National Honor Society member, a United States Army Reserve National Scholar-Athlete, and a Society of Women Engineers (Philadelphia Section) Certificate for Highest Honor in Science and Mathematics recipient.