With the game tied 51-51, Jackson scored four points in a row and missed a 3-pointer with one second remaining that would have won the game in regulation.
The Miners (17-10, 8-5 Conference USA) took control midway through the overtime period with a layup by Tavaris Watts and a 3-pointer by Jackson. Watts scored 14 points off the bench and had nine rebounds for UTEP. Arnett Moultrie contributed 10 rebounds.
SMU (8-18, 2-11) scored three points in overtime that included a jumper by Paul McCoy and a free throw by Mike Walker. Derek Williams led the Mustangs with 13 points and Bamba Fall scored 12. The Mustang's Mouhammad Faye led all rebounders by grabbing 15 boards.