The Owls (4-8) shot 55 percent from the field, making half of their 22 3-point attempts. They also made 10 of 11 free throws. Max Guercy added 13 points and five assists.
Rice, which led 29-22 at the half, had a 10-0 run early in the second half to go up 44-25. Maurice Rivers got it started with a 3 and then Jackson scored the next seven, ending it with a 3.
UTSA was within 10 with 3:06 left but Jackson hit a 3-pointer to end the threat.