2013 (So.): Allen rushed for 357 yards on 72 carries with five touchdowns last season as the primary back-up to All-American Antonio Andrews. He added 202 yards on 22 receptions and was the only true running back to catch a touchdown pass. Allen's best performance was a 10-carry, 92-yard showing in the season opener against Kentucky when he also scored his first touchdown of the season. In the second week of the season, he had a 13-carry game against Tennessee to set his high-water mark for the season while his season-high for receiving yards was a three-catch, 46 yard day against Louisiana-Lafayette.
2012 (Fr.): Allen became WKU's No. 2 option at running back in his true freshman season, finishing second on the team in rushing yards (317), yards per game (28.8) and yards per carry (5.7). He saw action in 11-of-13 games, leading the Hilltoppers in carries during their first two contests. Allen debuted with immediate impact against Austin Peay on Sept. 1, leading WKU with 93 rushing yards and a touchdown on 13 carries. He toted the rock a team-high 11 times at top-ranked Alabama on Sept. 8, totaling 28 yards on the day. He carried the ball six times for 20 yards in win at Kentucky on Sept. 15. Allen posted a career-high 132 rushing yards and a touchdown on just 11 carries against Southern Miss on Sept. 22. He rushed four times for eight yards in conference-opening win at Arkansas State on Sept. 29. Allen gained 37 yards on nine carries versus ULM on Oct. 20, the second-highest rushing total on the team.
HS/Misc.: Allen was rated as a two-star recruit by both Rivals.com and Scout.com, helping lead Manatee High to a 2011 Class 7A Florida State Championship, totaling over 130 yards from scrimmage in the state title game. He served as a dual-threat running back in his senior season, finishing the year with 834 yards on 161 carries to go along with 36 receptions for 336 yards. He averaged over five yards per carry while finding the endzone 10 times on the ground. He also had a pair of receiving touchdowns, averaging over nine yards per reception. Allen was named a running back on the South roster in the Florida FACA North-South All-Star Game, scoring the team's first touchdown of the game on a four-yard reception in the first half. He also earned Honorable Mention All-State honors to go along with First-Team All-Area honors.