Knight goes for No. 800 when the Red Raiders (12-3, 2-3 Big 12) play Texas A&M on Saturday in College Station.
The game against Colorado became tense in the second half when Colorado center David Harrison drew two quick technicals and appeared to want a fight with a Tech player. Police were called to the court to escort Harrison off the floor after he was ejected.
The first technical was called at 15:49. The second came at 13:03 after an offensive foul against Michel Morandais. Tech's Pawel Storozynski also was called for one because he and Harrison bumped one another after the foul was called.
A couple of seconds later Harrison began to move toward the center of the floor where Storozynski was standing with teammates. Storozynski saw Harrison coming and put up his fists to prepare to defend himself, but Harrison's teammates and coaches pulled Harrison back. Harrison was then ejected from the game.
Tech trailed only briefly at the start of the game and Colorado (12-6, 2-3) had trouble hanging on to the ball and making baskets. Colorado finished 19-for-72 and had 16 turnovers.
Colorado had just two field goals in 13 possessions to start the second half.
The Buffaloes used a 9-1 run after the near altercation involving Harrison to narrow the margin to three at 49-46 with 10:07 remaining in the game but could get no closer. Tech missed six of seven free throws and went more than seven minutes without a field goal during Colorado's run.
Tech was 16-of-29 at the free throw line and 6-for-22 field goals in the second half.
Will Chavis added 18 points for Tech.
Morandais scored 14 points and Blair Wilson added 11 to lead the Buffaloes.
Tech fell behind early in the game but used a 21-2 run to lead Colorado 23-10, including two 3-pointers by Chavis.
After going up 26-12, however, the Red Raiders failed to score on eight straight possessions and Colorado used a 7-0 run to narrow the margin to 26-19 with 5:20 remaining in the half.
Tech then put together a 7-0 run to lead 35-21 with 3:18 remaining in the half.
Tech led 37-26 at halftime.