James was born in 1997 in Port St. Lucie, Florida and spent the first three years of high school at West Centennial High School. As a junior in 2013-14, he averaged 21.1 points, 8.7 rebounds, 3.6 assists and 1.9 blocks per game. James was then named the 2014 Scripps Treasure Coast Newspapers Player of the Year. For his senior year (2014-15), James transferred to Oldsmar Christian High School. James helped Oldsmar Christian go 26-4 overall, averaging 20 points and 11 rebounds per regular-season contest. He was later named the 2015 Sunshine Independent Athletic Association Player of the Year. James says that dancing is one of his hidden talents. While at the University of Wyoming, he majored in kinesiology. Fans can follow the Floridian on Twitter (@1JustinJames). Justin James spent four seasons, from 2015 through 2019, at the University of Wyoming. During his sophomore season (2016-17), he transitioned from reserve to significant contributor and posted 16.0 points, 5.0 rebounds and 1.3 three-pointers per contest. As a junior (2017-18), he topped the Cowboys stats in points (18.9) and assists (3.1) per game and was named to the All-Mountain West Conference First Team. During his last season at Wyoming (2018-19), the Florida native led the Mountain West Conference in points per game (22.1), minutes per game (38.2), total field goals (228) and total free throws (200). James led the Cowboys in points, rebounds (8.5), assists (4.4) and steals (1.5) per game. At the end of the season, James was named to the 2018-19 All Mountain West Conference Second Team.