Russell hit two free throws to push the lead back to three points, and Pat Swilling Jr. and Haralson missed 3-point attempts on Tulsa's next possession. SMU then began protecting its lead at the free-throw stripe.
SMU shot 51.8 percent (29 of 56) from the floor and attempted just two 3-pointers, missing both.
Purdue coach Matt Painter says players haven't used the fifth-year graduate transfer rule for its true intent.
The dust has settled after players made their NBA draft decisions. Which college teams won? Which lost? Well, Villanova is pretty happy. USC, meanwhile, might not be as thrilled.
The 2017 recruiting class is short on point guards, with Trevon Duval leading only eight prospects from the ESPN 60 who are still available.