Mayfield is currently the defensive coordinator of the Texas Revolution of Champions Indoor Football (CIF).

Mayfield graduated from the University of Oklahoma with a Bachelor of Arts degree and was a three-year starter.

Mayfield was selected by the San Francisco 49ers in the tenth round of the 1992 NFL draft.

[1] Mayfield played for the San Francisco 49ers, Tampa Bay Buccaneers, Jacksonville Jaguars, Grand Rapids Rampage,[2] Orlando Rage, Philadelphia Soul and the Dallas Desperados.

He served as the defensive line coach/co-special teams coordinator for the New York Dragons and head coach of the East Texas Wranglers of the Independent Indoor Football Alliance.