|High School:||Modesto Christian HS|
Modesto Christian High School:
At Modesto Christian HS, T.J. earned First Team Modesto Bee All-District honors in 2012-13. He was selected to the All-Tournament Team at the Modesto Christian Holiday Tournament. He averaged 16.0 points and 8.5 rebounds as a senior in 2012-13.
McNair High School:
T.J. was named the 2011-12 Most Valuable Player of the Tri-City Athletic League after averaging 19.7 points, 14.2 rebounds and 3.7 steals per game for McNair High School in Stockton. He also averaged 3.5 assists and 2.4 blocks per game. Wallace was also a Tri-City Athletic League First Team selection and was named The Record's All-Area Player of the Year in both 2011 and 2012. He scored a career-high 37 points with 16 rebounds against River Valley High School on Dec. 16, 2011. It was one of three 30+ points games for Wallace.