The Pirates are Conference USA East Division Champs for the first time and are now headed to the Conference USA Championship game.
The Blazers scored first on a Joe Webb rushing touchdown to make it 7-0. The Pirates answered back with a Patrick Pinkney to Davon Drew touchdown pass to tie it at 7.
ECU had a chance to tie the game on a 43 yard Ben Hartman field goal but it hit the goal post and was no good. UAB also had a chance to go ahead with a 26 yard field goal, but kicker Swayze Waters missed.
ECU had the chance to regain the lead but Hartman missed his second field goal of the night. Waters was able to put one in from 27 yards out to give the Blazers a three point lead.
The Pirates tied it in the third quarter on a 47 yard field goal by Hartman. Waters put the Blazers back in front with a 23 yard field goal.
With around 2:00 to go Brandon Simmons punched it in for the Pirates to take the lead 17-13.
UAB was driving with about 1:20 to go when Pierre Bell intercepted a Webb pass to clinch the victory for the Pirates.
The Pirates will play either Tulsa, Houston or Rice in the championship game.