Jahmi'us Ramsey was born June 9, 2001in Arlington, Texas. He is the son of Avery Ramsey and Falisha Bryant. He has one sibling, brother Corinthian who played basketball at Tarleton State. Ramsey started his high school career at Mansfield Summit High School in his hometown of Arlington. Before his junior year, he transferred to IMG Academy in Bradenton, Florida. Then, before his senior season, he transferred to Duncanville High School back in Texas. With Duncanville, he averaged 21 points and six rebounds per game and led the team to a Class 6A state championship. The shooting guard then played college basketball at Texas Tech for one season before making himself eligible for the 2020 NBA Draft. Fans can follow the Texas native on Twitter @newanimprovedJR.