Mastrosimone enjoyed a standout season at Boston in 2021-22, setting career-highs in goals (11), assists (14) and points (25) in 34 games. In three seasons with the Terriers, Mastrosimone recorded 21 goals and 29 assists in 83 games.
According to the 21-year-old, navigating the transfer portal was advantageous.
"It's kind of like recruiting all over again," Mastrosimone said. "But it was a really cool experience being able to talk to all different coaches, hear what everyone has to say and hear how everyone wants to coach their team."
Before his time at Boston University, Mastrosimone enjoyed an impressive 2018-19 season with the USHL's Chicago Steel, earning 60 points (31-29-60) in 54 games.
"It's definitely a different adjustment," Mastrosimone said about adapting to Division I college hockey. "As you go up in every league, you got that little adjustment period. I think this year, I'm fully ready."
The East Islip, N.Y., native knows that reaching the next level "will take a lot of focus," but believes his new teammates will help him achieve his professional hockey goals.