MaryBeth is a 2015 graduate of Foxboro High School, where she participated in four years of lacrosse and field hockey. She was a Hockomock All-Star & Sun Chronicle All-Star as a sophomore, junior and senior. She was also named the Underclassmen of the Year as a sophomore.

MaryBeth went on to have a strong career as a midfielder at SNHU, where she played in every game all four years. She graduated in May 2019 with a degree in sociology.