[3] Despite receiving scholarship offers from multiple schools, Allen chose to enroll at the University of Michigan in 2012 as a preferred walk-on.

[2][4] During the 2015 season, Allen became Michigan's starting placekicker while Blake O'Neill handled punting duties.

In the opening game against Utah, Allen kicked a field goal for the first points of the Jim Harbaugh era.

His kickoff against Utah, where his sister Hannah now lives, was also the first field goal made by an African-American kicker in Big Ten history.

[12] Following the 2016 season, Allen was named to the All-Big Ten special teams second-team, by both the coaches and media.