The NCAA was without a playoff for the major college football teams in the University Division, later known as Division I-A, during the 20th century. The NCAA recognizes Division I-A national champions based on the final results of polls including the "wire service", FWAA and NFF. The 1964 AP poll continued to rank only ten teams, compiling the votes of 55 sportswriters, each of whom would give their opinion of the ten best. Under a point system of 10 points for first place, 9 for second, etc., the "overall" ranking was determined.
The 1987 NCAA Division I-A football season ended with Miami winning its second national championship of the 1980s in an Orange Bowl game featuring a rare No. 1 vs. No. 2 matchup between the top ranked Oklahoma Sooners and the Hurricanes.
During the 20th century, the NCAA had no playoff for the major college football teams in the University Division, later known as Division I-A. The NCAA did recognize a national champion based upon the final results of "wire service" polls. The "writers' poll" by Associated Press (AP) was the most popular, followed by the "coaches' poll" by United Press International) (UPI). Prior to 1965, both services issued their final polls at the close of the regular season, but before teams competed in bowl games. For the 1965 season, the AP took its final poll after the postseason games, an arrangement made permanent in 1968. The Associated Press presented the "AP Trophy" to the winner.
The 1966 University Division football season was marked by some controversy as the year of "The Tie", a famous 10–10 game between the two top-ranked teams, Michigan State and Notre Dame on November 19. Both teams were crowned national champions by various organizations after the regular season concluded, and neither participated in a bowl game. Alabama finished the regular season undefeated and was third in the AP poll, while Georgia was fourth. Alabama went on to win the Sugar Bowl in dominant fashion. During the 20th century, the NCAA had no playoff for the major college football teams in the University Division, later known as Division I-A.
The 1967 NCAA University Division football season was the last one in which college football's champion was crowned before the bowl games. During the 20th century, the NCAA had no playoff for the major college football teams in the University Division, later known as Division I-A and now as the Division I Football Bowl Subdivision (FBS).
In the 1968 NCAA University Division football season, the system of "polls and bowls" changed. The Associated Press returned to its pre-1961 system of ranking the Top 20 rather than the Top 10, and voted on the national champion after the bowl games, rather than before. During the 20th century, the NCAA had no playoff for the major college football teams in the University Division, later known as Division I-A.
The 1970 NCAA University Division football season was marked by tragedy, due to two airplane crashes. On October 2, one of the planes carrying the Wichita State football team crashed on the way to a game against Utah State, killing 31 people on board, including 14 players. Then, on November 14, the charter for the Marshall Thundering Herd crashed on the way home from a game against East Carolina, killing all 75 persons.
The 1974 NCAA Division I football season finished with two national champions. The Associated Press (AP) writers' poll ranked the University of Oklahoma, which was on probation and barred by the NCAA from postseason play, No. 1 at season's end. The United Press International (UPI) coaches' poll did not rank teams on probation, by unanimous agreement of the 25 member coaches' board. The UPI trophy went to USC.
The 1977 NCAA Division I football season was one in which the top five teams finished with 11–1 records. Notre Dame, which beat top-ranked and undefeated Texas in the Cotton Bowl, became the national champion.
The 1929 college football season saw a number of unbeaten and untied teams. Purdue, Tulane, Notre Dame, and Pittsburgh all finished the regular season with wins over all their opponents. Notre Dame was recognized as national champion by two of three contemporary major selectors, while the third (Houlgate) named USC (10–2). Eight of nine retrospective selectors later also named Notre Dame and USC as No. 1 teams.
The 1954 college football season saw three teams finish unbeaten and untied, with Ohio State Buckeyes and the UCLA Bruins sharing the national championship as the No. 1 picks of the AP Poll and the UPI Poll, respectively. Although the winners of the Big Ten and the Pacific conferences normally met in the Rose Bowl, a "no repeat" rule prevented the two champions from meeting. UCLA, which had been in the Rose Bowl earlier in the year, was replaced by conference runner-up USC.
The 1952 college football season ended with the unbeaten Michigan State Spartans (9–0) and Georgia Tech Yellow Jackets (12–0) each claiming a national championship from different polls. Michigan State finished first according to two of the "wire service" polls, which both placed Georgia Tech second. Georgia Tech was first in the International News Service poll. UP and INS merged in 1958 to form UPI.
The 1950 college football season finished with the unbeaten and untied Oklahoma Sooners (9–0) being the consensus choice for national champion. On New Year's Day, however, the Sooners were upset by the Kentucky Wildcats in the Sugar Bowl. The Army Cadets, ranked No. 2 in the AP Poll, had been defeated in their final regular season game by 2–6 Navy, 14–2. However, the final poll had been issued on November 27, and the bowl games had no effect on Oklahoma's status as the No. 1 team.
The 1949 college football season finished with four teams that were unbeaten and untied-- Notre Dame, Oklahoma, California, and Army had won all their games at season's end. Notre Dame, however, was the overwhelming choice for national champion in the AP Poll, with 172 of 208 first place votes. The Fighting Irish did not participate in the New Year's Day bowl games, which were played on January 2, 1950.
The 1947 college football season finished with Notre Dame, Michigan, and Penn State all unbeaten and untied, but the Fighting Irish of Notre Dame were the first place choice for 107 of the 142 voters in the final AP Poll in early December, and repeated as national champions. Michigan was selected for the top spot by six contemporary math systems.
The 1946 college football season was the 78th season of intercollegiate football in the United States. Competition included schools from the Big Ten Conference, the Pacific Coast Conference (PCC), the Southeastern Conference (SEC), the Big Six Conference, the Southern Conference, the Southwestern Conference, and numerous smaller conferences and independent programs. The season saw the return of many programs which had suspended play during World War II, and also the enrollment of many veterans returning from the war.
The 1938 college football season ended with the Horned Frogs of Texas Christian University (TCU) being named the nation's No. 1 team by 55 of the 77 voters in the final Associated Press writers' poll in early December. Tennessee was also chosen by six contemporary math system selectors as a national champion; both teams won every game. Notre Dame was chosen by the Dickinson System and won the Knute Rockne Memorial Trophy.
The 1940 college football season was the 72nd season of intercollegiate football in the United States. Competition included schools from the Big Ten Conference, the Pacific Coast Conference (PCC), the Southeastern Conference (SEC), the Big Six Conference, the Southern Conference, the Southwestern Conference, and numerous smaller conferences and independent programs.
The 1941 college football regular season was the 73rd season of intercollegiate football in the United States. Competition included schools from the Big Ten Conference, the Pacific Coast Conference (PCC), the Southeastern Conference (SEC), the Big Six Conference, the Southern Conference, the Southwestern Conference, and numerous smaller conferences and independent programs.
One human poll comprised the 1939 National Collegiate Athletic Association (NCAA) football rankings. Unlike most sports, college football's governing body, the NCAA, does not bestow a national championship, instead that title is bestowed by one or more different polling agencies. There are two main weekly polls that begin in the preseason—the AP Poll and the Coaches' Poll. The Coaches' Poll began operation in 1950; in addition, the AP Poll did not begin conducting preseason polls until that same year.