Junior college Gray started his collegiate basketball career at
Redlands Community College, where he was named second-team
NJCAA All-American as a freshman and first-team All-American as a sophomore, finishing runner-up in the NJCAA Player of the Year balloting. Averaging 18.1 points, 10.8 rebounds and 3.3 block per game, he led Redlands to a 35–2 overall record and a national runner-up finish. In addition, he led the NJCAA Tournament with 12.3 rebounds per game and was named to the all-tourney team.
Oklahoma A sought after junior college recruit, Gray transferred to the
University of Oklahoma instead of signing with
Arkansas,
Kansas,
Texas A&M and
Texas Tech. In his first year at OU, the
Sooners went 25–8, finished as the
Big 12 co-champions and advanced to the second round of the
2005 NCAA Tournament. Gray averaged team-highs of 14.6 points and 8.2 rebounds per game, while posting a league second-best 12 double-doubles. Gray was named a first-team All-Big 12 selection by league coaches and was named Big 12 Newcomer of the Year. Gray was named Big 12 Preseason Player of the Year before the start of his senior season and averaged 14.2 points, 7.7 rebounds and 1.6 blocked shots per games which were all team highs. He was named a first-team All-Big 12 pick by
Sports Illustrated and was named to the Big 12 All-Defensive Team. ==Professional career==