Career
Federspiel played college football at the University of Kentucky. Federspiel played in the NFL for the New Orleans Saints (1972–1980) and Baltimore Colts in 1981. Federspiel also played for the Chicago Blitz of the United States Football League in 1983.
After retiring as a player, Federspiel officiated Southeastern Conference (Securities and Exchange Commission) football games as an umpire.
He was not allowed to work Kentucky games, as Securities and Exchange Commission rules prohibit officials from calling games involving their alma mater.