Will Ferrin kicked a 26-yard field goal with 1:58 left Friday night to give BYU an 18-15 non-conference win over SMU in Dallas.The Mustangs’ last gasp ended with 1:25 remaining when Kevin Jennings’ 4th-and-10 pass from their 40, intended for Jordan Hudson, fell incomplete at theCougars’ 20. The result enabled BYU to improve to 2-0 and dropped SMU to 2-1.Jake Retzlaff completed 15 of 28 passes for the Cougars for 202 yards with a touchdown and two interceptions, while Jennings was 15 of 32 for 140 yards with an interception. Mustangs starter Preston Stone played just three series and was 2 of 4 for 4 yards, absorbing three sacks.SMU led 12-7 in the third quarter after Collin Rogers’ fourth field goal of the game when BYU answered with a 61-yard touchdown march. Enoch Nawahine scored on a 9-yard run at the 1:15 mark, followed by a two-point conversion pass.Rogers’ fifth field goal, a 45-yarder with 6:17 remaining in the game, evened the score at 15. The Cougars responded with a 67-yard drive, getting a 37-yard run from Miles Davis on 4th-and-1 from their 48 to tee up Ferrin.