#20 Texas Tech. In the Oklahoma State game, he led Texas on back-to-back 75 yard drives in the last ten minutes of the game for the win. In a losing effort against TCU he injured his ribs and kept playing, but then was forced to sit out the next week against Kansas State. He led the Horns to an 8–4 regular season which was good for third place in the Big 12 and an appearance in the 2012 Valero Alamo Bowl against Oregon State. Ash threw for 2 touchdowns and rushed for another as the Horns won the Alamo Bowl 31–27 to finish the season ranked #18. 2013 season Ash's 2013 season got off to a quick start against New Mexico as Ash threw for 343 yards and 4 touchdowns, and also ran 91 yards and a touchdown as #15 Texas defeated New Mexico State 56–7. However, in the next game Ash threw for 251 yards and 2 touchdowns before suffering a concussion late in the 4th quarter against a BYU team that would ultimately upset the Longhorns 40–21. After missing the 3rd game of the year against Ole Miss, Ash returned to game action and threw for 166 yards and 1 touchdown in the first half against Kansas State before re-aggravating his concussion in the 31–21 victory. Ash's concussion turned out to be more severe the 2nd time around as Ash was unable to return to the Longhorns for the remainder of the 2013 season. 2014 season Ash was given a medical hardship for the 2013 season, meaning that he entered 2014 with two years of remaining eligibility. At the end of spring training, he suffered a Jones fracture in his foot, an injury that required surgery. In the first game of the 2014 season, Ash threw for 190 yards and a touchdown as Texas beat North Texas by a score of 38–7. He played almost the entire game and reported no concussion symptoms during it, but later that evening, he reported experiencing headaches and dizziness and was brought in for further evaluation. Ash reported believing that the first hit in that game triggered a recurrence of the symptoms that caused him to miss most of the 2013 season. As a result, Tyrone Swoopes was named the starter for the next game against BYU. On September 17, 2014, Ash announced that he would be walking away from football due