As a sophomore at East Ridge High School in Woodbury, Minnesota, Brown averaged 17.6 points and led the team to its first state tournament appearance.

[2] He was named to the McDonald's All-American Game, Jordan Brand Classic and Nike Hoop Summit rosters.

On June 23, 2022, the Timberwolves traded his draft rights to the Indiana Pacers in exchange for cash considerations and a 2026 second-round pick.

[13] On February 27, 2023, he underwent surgery to address a tibia stress fracture in his right leg and was ruled out indefinitely by the Pacers.

[19] Brown's father, Courtney Sr., played professional basketball in South America, Switzerland and England, and was a member of the Harlem Globetrotters, before becoming a public school intervention specialist.