He was a McDonald"s All American and was rated 20th by Entertainment and Sports Programming Network class of 2007. Lucas previously played for the University of Florida, but decided to transfer from the Florida Gators men"s basketball team, due to lack of playing time at his favored position of point guard. Though Lucas started for the Gators, he was moved out of his natural position to that of the shooting guard in the starting rotation, because teammate Nick Calathes was favored at the point guard position.
He averaged just below double figures in scoring, and also has 2.3 assists per game.
In November 2008, Lucas announced his intentions to transfer from Florida. Jai Lucas announced his intention to transfer to Texas on December 28, 2008.
Lucas is from a well-known basketball family. His father, John Lucas II, was an All-American at Maryland who went on to a 14-year career in the National Basketball Association and was later head coach of three National Basketball Association teams.
On January 2, 2013, Lucas was waived by the Idaho Stampede.
On January 11, 2013, Lucas was acquired by the Sioux Falls Skyforce. He was then waived by the Skyforce on January 21. On March 30, 2013, Lucas was acquired by the Canton Charge.
In August 2013, the Texas Longhorns hired him as an assistant coach on the staff of Rick Barnes.
Lucas assists in all internal operations of the basketball program