He played college basketball for the UNC Greensboro Spartans and Eastern Washington Eagles.

[1] Allegri began his collegiate career with the UNC Greensboro Spartans where he averaged 7.9 points and 4.1 rebounds during his three seasons with the team.

[2] After the departure of Spartans head coach Wes Miller, Allegri transferred to the Eastern Washington Eagles in 2021.

[3][4] Allegri worked out for the Charlotte Hornets on May 2, 2023,[5] and suffered a foot injury the day afterwards which limited him to the one workout.

[7] However, he was waived on September 29,[8] and on October 29, he signed with the Greensboro Swarm, the Hornets' NBA G League affiliate.