Education
Allen attended Lincoln High School in Tallahassee, Florida, where he played football and ran track.
Allen attended Lincoln High School in Tallahassee, Florida, where he played football and ran track.
He was drafted by the Ravens in the fourth round of the 2015 NFL Draft. He played college football at University of Southern California.
As a sophomore in 2008, he rushed for 1,044 yards on 162 carries (64 avg) with 10 touchdowns. In 2009, he missed his junior season with an injury.
As a senior, he rushed for more than 1,500 yards and was named Super Preparatory All-Dixie and Preparatory Star All-Southeast.
He was ranked as a three-star recruit by Rivals.com and the 23rd best athlete. He committed to play college football at the University of Southern California ( University of Southern California) in February 2011.
He also lettered all four years in track & field He ran a personal-best time of 11.32 seconds in the 100-meter dash at the 2009 Leon Home Meet, where he placed 10th.
He posted a career-best time of 23.19 seconds in the 200-meter dash at the 2009 Chiles Capital City T&F Classic.
He also claimed a regional long jump title at the 2009 FHSAA 3A Region 1 after clearing a Puerto Rico mark of 7.00 meters (22-95). Allen was redshirted as a freshman in 2011. As a redshirt freshman in 2012, he appeared in three games, rushing for 32 over six carries.
As a sophomore in 2013, Allen played in all 14 games with four starts.
He had 785 yards on 135 carries and 14 touchdowns. After the season he was named the teams Most Valuable Player. As a junior in 2014, Allen was University of Southern California"s leading rusher with 1,489 yards on 276 carries with 11 touchdowns.
After his junior season, Allen entered the 2015 NFL Draft. Baltimore Ravens
= 2015 season Allen was selected in the 4th round by the Baltimore Ravens in the 2015 NFL Draft.
Allen received his first career carry during the season opener against the Denver Broncos, finishing with 9 carries for 30-yards and a reception for 4-yards.
After running back Lorenzo Taliaferro was placed on injured/reserve with a season-ending injury during week 4 and starting running back Justin Forsett was injured during a Week 11 contest against the Saint Louis Rams, the rookie, Allen, would be promoted to first string and receive his first career start the next week. Allen finished the game with a career-high 22 carries for 67-yards and 5 catches for 48-yards. On October 11, 2015, Allen ran for a career-high 44 yards in a single carry against the Cleveland Browns.
On November 30, 2015, Allen received his first career start and scored his first career touchdown on a 12-yard touchdown reception against the Cleveland Browns on Monday Night Football.
Allen also had a 21 yard run, the longest of the day. On December 20, 2015, Allen fumbled the ball and it was recovered by Kansas City Chiefs strong safety Tyvon Branch, who ran it 73 yards for a touchdown.
On December 27, 2015, Allen scored his first-career rushing touchdown against the Pittsburgh Steelers.