He was a walk-on with the Texas Tech Red Raiders before transferring to Oklahoma following alleged issues with scholarship and poor communication with coaches.
He became the first walk-on true freshman to start a season opener for a BCS school. He helped lead his Sooners to the semifinals of the college football playoff in 2015-16 and 2017-18.
He was born in Austin, Texas to parents James and Gina Mayfield. He got engaged to Emily Wilkinson in 2018.
He was coached by Bob Stoops while at Oklahoma.