An All-American in 2018 and 2019, Masias was a four-year starter for the Big Red. He helped lead Cornell to three appearances in the national semifinals and a pair of regional titles. In his four seasons, including a shortened senior year due to the coronavirus pandemic, Cornell posted a 62-16 record, including 14-4 heading into the postseason as a senior captain. Masias was a member of the Peruvian national team.