High Quality Content by WIKIPEDIA articles! The 1975 college football season saw University of Oklahoma repeat as national champion in the Associated Press (AP) writers` poll. With the Sooners having completed two seasons of NCAA probation, they were ranked #1 in the United Press International (UPI) coaches` poll as well. During the 20th Century, the NCAA had no playoff for the college football teams that would later be described as "Division I-A". The NCAA Football Guide, however, did note an "unofficial national champion" based on the top ranked teams in the "wire service" (AP and UPI) polls. The "writers` poll" by Associated Press (AP) was the most popular, followed by the "coaches` poll" by United Press International) (UPI). The AP poll consisted of the votes of as many as 63 writers, though not all voted in each poll, and the UPI poll was taken of a 25 member board of coaches.