Scottie Haralson and Eric McClellan had nine points each for the Golden Hurricane (7-7), who won for the 10th time in the last 11 meetings between the schools, dating to the 1998-99 season.
The Hurricane scored a game's last eight points. Clarkson's jumper with 1:34 to play gave Tulsa a 68-66 lead, and TCU got just one shot on its final four possessions, missing all of them.
With the Horned Frogs forced to foul, Maduka hit two free throws and Clarkson four down the stretch.
Tulsa shot 50 percent (20 of 40) from the floor to TCU's 36.7 percent (18 of 49) and enjoyed a 35-27 rebounding advantage.
- Sports & Recreation
- Sports & Recreation/Basketball