Before Alonso arrived at UNC Greensboro, the team had endure seven consecutive losing seasons. He primarily functioned as a catch-and-shoot perimeter scorer as a freshman. As a sophomore, Alonso averaged 14.9 points and 2.0 assists per game for a team that reached the NIT. He was named to the Second Team All-
Southern Conference. As a junior, Alonso averaged 15.6 points and 2.9 rebounds per game in leading the team to the NCAA Tournament. He scored a career-high 31 points in the quarterfinals of the conference tournament versus
Samford. He was named to the First Team All-SoCon and was named most outstanding player of the conference tournament. On February 28, 2019, Alonso became the second player in school history to surpass 2,000 career points, finishing with 18 points in a 100–96 win over
The Citadel. As a senior, Alonso averaged 17.6 points, 2.5 assists and 2.3 rebounds per game, shooting 37.1 percent from three-point range. He was named to the First Team All-SoCon alongside teammate
Isaiah Miller. ==Professional career==