Flagg attended Alvin High School. During his final year, he averaged 31.3 points, 11.1 rebounds and 5.9 assists per game.[1]
College career
Flagg attended Texas A&M for four seasons. As a sophomore, he averaged 13.9 points and 7.7 rebounds per game.[2] Flagg averaged 10.4 points and 5.1 rebounds per game as a junior.[3] As a senior, he averaged 8.8 points, 4.5 rebounds, and 2.3 assists per game. Following the season, Flagg entered the transfer portal, ultimately choosing Sam Houston State.[4] During his final year, he earned a First-team All-WAC selection.[5] Flagg averaged 18.6 points, 8.2 rebounds and 2.2 assists per game.[6]
Professional career
On July 15, 2022, Flagg signed his first professional contract with Greek club Lavrio.[7] In 21 league games, he averaged 14.5 points, 7.2 rebounds and 3.8 assists, playing around 33 minutes per contest.