Caldwell finished the 2015 season with 52 tackles, including 5.5 tackles for loss, to go along with an interception he returned for a touchdown. He also returned 14 kickoffs for 323 yards and was named honorable mention All-Sun Belt each of his final two seasons at Louisiana-Monroe.
12/28/2015 - 2015 SUN BELT HONORABLE MENTION (COACHES/MEDIA): Trey Caldwell (UL Monroe, Sr., DB, Marketing)...Caldwell finished the 2015 campaign with 52 total tackles, including 41 solo stops. Of his 52 stops, 5.5 were for loss and he also broke up a total of 10 passes during the season. He recorded an interception in his final career game and it proved to be the difference as he returned it 40 yards for a touchdown as ULM defeated New Mexico State on December 5. - UL Monroe Football