On November 21, 2019, Molinar scored a freshman season-high 21 points in an 80–66 win over Tulane.[5] As a freshman, he averaged 5.9 points per game. He missed the first three games of his sophomore season after testing positive for COVID-19.[6] On January 9, 2021, Molinar recorded 24 points, eight rebounds and four steals in an 84–81 victory over Vanderbilt. He was subsequently named Southeastern Conference (SEC) Player of the Week.[7] As a sophomore, Molinar averaged 16.7 points, 3.7 rebounds, and 2.3 assists per game.[8] On January 12, 2022, Molinar scored 28 points in a 88–72 win against Georgia.[9] On January 25, 2022, he scored a career-high 30 points in a 82–74 overtime loss against Kentucky.[10] Molinar was named to the First Team All-SEC as a junior.[11] As a junior, he averaged 17.5 points, 3.6 assists, 3.1 rebounds and 1.2 steals per game. On March 25, 2022, Molinar declared for the 2022 NBA draft while maintaining his college eligibility.[12] He later signed with an agent, forgoing his remaining eligibility.[13]
After rejoining Milwaukee for the 2023 NBA Summer League, Molinar re-signed with the Bucks on September 2, 2023. However, he was waived on the same day.[17] On October 30, Molinar rejoined the Wisconsin Herd.[18]
Molinar played for Panama's junior national teams from the age of 10.[1] He made his debut with the senior national team at the 2017 FIBA AmeriCup, averaging three points per game.[21]
Molinar is the son of Leyza Jones and Manuel Molinar.[1] He is named after Hall of Fame basketball player Allen Iverson. He speaks English, Spanish and Italian.[22]