Allar joined the
Penn State Nittany Lions as an early enrollee in January 2022. He was named the Nittany Lions' backup quarterback entering the 2022 season opener. Allar made his college debut in the season opener against
Purdue, completing two passes on four attempts for 26 yards when starter
Sean Clifford left the game due to an apparent knee injury. He played in nine games, all coming off of the bench, during his freshman season and completed 35 of 60 pass attempts for 344 yards and four touchdowns while also rushing for 52 yards and one touchdown. On October 11, 2025, Allar suffered a season-ending ankle injury in a loss against
Northwestern. Due to NCAA regulations, he could not medically
redshirt the season, making it a college career-ending injury as well.
Statistics ==Professional career==