As a freshman at Illinois, Griffin averaged 2.8 points in 8.1 minutes per game.[5] He became the team's sixth man as a sophomore.[2] On February 27, he scored a season-high 24 points and six three-pointers in a 74–66 win over Northwestern.[6] Griffin averaged 8.9 points and 4.5 rebounds per game per game.[7] He led the NCAA Division I in offensive rating among players who were used in at least 20 percent of their team's possessions.[8] After the season, Griffin transferred to Syracuse and received a waiver for immediate eligibility.[9] Through his first 5 games as a member of the Orange, he led the team in scoring with 18.4 points per game, and he led the team in points in 3 of those games, tallying 23, 20, and 22 points against Rider, Rutgers, and Boston College respectively. After going scoreless in the team's following game against Northeastern on December 16, Griffin would have a huge comeback game on December 19 against Buffalo, putting up 24 points, 10 rebounds, 3 assists, 2 steals and 3 blocks, including the game-saving rejection to send the game into overtime, which would eventually lead to an 11-point victory for Syracuse after being down by as many as 16 points.[10] Griffin averaged 13.3 points and 5.8 rebounds per game. Following the season he declared for the 2021 NBA draft.[11]
On December 19, 2021, Griffin signed with the Westchester Knicks.[14] On January 9, 2022, Griffin was reacquired by the Westchester Knicks.[15] He was then later waived on January 23, 2022.[16]
Griffin is the son of Adrian Griffin and Audrey Sterling. His father played in the NBA for nine years. His mother was an All-American who ran track for Seton Hall. Griffin's younger brother, AJ, Selected in the 16th pick in the 2022 draft. He has an older sister, Vanessa, and his younger sister, Aubrey, plays college basketball for UConn.[17]