Wiedemann played at the defensive back position for the California Golden Bears football team from 1967 to 1969.
[1] As a junior, he was selected by the AP, UPI, and Pac-8 coaches as a first-team player on the 1968 All-Pacific-8 Conference football team.
He was on pace to break the Pac-8 record for interceptions, but he missed part of his senior season with a knee injury.
[5] He finished his college career as Cal's all-time leader with 16 interceptions for 184 yards and two touchdowns.
[6] After his football career ended, Wiedemann obtained a Ph.D. in clinical psychology and practiced as a psychologist.