Robert Nyakundi scored 14 points and Jeremiah Samarrippas had 12 points and three steals for the Mustangs (9-7, 1-1).
Kazemi lost the Division I rebounding lead after being held to just four against Marshall on Saturday. He was back in form against SMU after entering the game third in the nation at 11.9 rebounds a game.
A 3-pointer by Ibrahim sparked an 11-1 Rice run over a 2:56 stretch of the second half. The Owls made six free throws during the surge, which gave them a 47-31 lead with 12:16 remaining, and the Mustangs got no closer than eight points afterward.