[1] Holman played for the Mississippi State Bulldogs men's basketball team under head coach Ben Howland from 2015 to 2019.

[4] After going undrafted in the 2019 NBA draft, Holman signed with the Los Angeles Lakers in July 2019.

[5][6] The Lakers waived Holman in August to make space for Dwight Howard on the training camp roster, but was subsequently claimed off waivers by the Dallas Mavericks.

[11] In August 2021, Holman joined the Boston Celtics for the 2021 NBA summer league, missing one shot and taking 2 rebounds in 5 minutes at his debut, an 85–83 win against the Atlanta Hawks.

[21] On August 14, 2024, Holman signed with the Formosa Dreamers of the Taiwan Professional Basketball League (TPBL).