[1][2][3] His mother worked for the Fulton County School System as a special education teacher[2][4] and his father played college baseball at Alcorn State.

[9] He signed with the Braves for a bonus of $548,000,[10][11] forgoing his commitment to play college baseball at Texas Tech University,[12] as well as a desire to attend veterinary school.

[13] Prior to considering Texas Tech, Harris had been recruited by the Louisiana State Tigers baseball team solely as a pitcher.

[31][32][33] As the season continued, Harris, teammate Spencer Strider, and the Braves' later call-up Vaughn Grissom were considered possible National League Rookie of the Year candidates.

[39] On November 14, Harris was named the 2022 National League Rookie of the Year, finishing ahead of teammate Spencer Strider.

[41] Harris dedicated the award to Marquis Grissom, his youth baseball tutor, with whom he had continued working during the offseasons.

[44] Harris began the 2024 campaign with Atlanta, playing in 67 games and hitting .250/.295/.358 with five home runs, 20 RBI, and eight stolen bases.

[46] He was activated on August 14, and hit his first career grand slam off of San Francisco Giants pitcher Robbie Ray later that evening.