The 1931 college football season saw the USC Trojans win the Knute Rockne Memorial Trophy as national champion under the Dickinson System, as well as the No. 1 position from each of the other three contemporary major selectors (Boand, Dunkel, and Houlgate Systems). Rockne, who had coached Notre Dame to a championship in 1930, had been killed in a plane crash on March 31, 1931. For the first time, the champion under the Dickinson System also played in a postseason game. The 1932 Rose Bowl, promoted as a national championship game between the best teams of East and West, matched USC and Tulane, No. 1 and No. 2 in the Dickinson ratings. USC won, 21âÂÂ12, and was awarded the Albert Russel Erskine Trophy.
Two years later, historian Parke H. Davis selected Pittsburgh and Purdue (No. 9 and No. 10 in the Dickinson ratings) as "National Champion Foot Ball Teams" for 1931; he was the only NCAA-designated "major selector" to choose either team. Davisâ work has been criticized for having a heavy Eastern bias, with little regard for the South and the West Coast. Pittsburgh claims a 1931 national championship on this basis, while Purdue does not.
September 26 The season started with an upset. St. Mary's College, a relatively small school in San Francisco, defeated USC 13âÂÂ7. Tulane beat Ole Miss, 31âÂÂ0 and Tennessee beat Maryville 33âÂÂ0, while Pittsburgh beat Miami University, 61âÂÂ0.
October 3 St. Mary's won again, at California, 14âÂÂ0, and USC won its first game of the season, beating Oregon State 30âÂÂ0. Tennessee beat Clemson 44âÂÂ0 and Tulane defeated Texas A&M 7âÂÂ0. Northwestern beat Nebraska 19âÂÂ7. Purdue opened its season for the home crowd with a doubleheader, beating Ohio's Western Reserve 28âÂÂ0, followed by a 19âÂÂ0 win over Iowa's Coe College
Pittsburgh won at Iowa, 20âÂÂ0 Georgia beat Virginia Tech 40âÂÂ0 Harvard defeated Bates College, 28âÂÂ0 and Yale beat Maine, 19âÂÂ0 Notre Dame won at Indiana 25âÂÂ0
October 10 In Chicago, a crowd of 75,000 turned out at Soldier Field to watch Northwestern and Notre Dame played to a 0âÂÂ0 tie in a driving rain. Tennessee defeated Ole Miss 38âÂÂ0. USC beat Washington State 38âÂÂ6. Harvard beat New Hampshire, 39âÂÂ0. In New Haven, the Georgia Bulldogs handed the Yale Bulldogs their first defeat, 26âÂÂ7. Purdue beat Illinois 7âÂÂ0 Pittsburgh beat West Virginia 34âÂÂ0. Tulane defeated Spring Hill College 40âÂÂ0 and St. Mary's beat the West Coast Army team, 21âÂÂ7
October 17 Tulane and Vanderbilt, both 3âÂÂ0âÂÂ0, met at Nashville, with Tulane winning 19âÂÂ0 Tennessee and Alabama, both 3âÂÂ0âÂÂ0, met at Knoxville, with UT winning 25âÂÂ0. USC defeated visiting Oregon 53âÂÂ0. Northwestern beat visiting UCLA 19âÂÂ0 Georgia won at North Carolina, 32âÂÂ7. Yale beat Chicago 27âÂÂ0 and Harvard got past Army 14âÂÂ13. Purdue lost at Wisconsin 21âÂÂ14. Pittsburgh defeated Western Reserve, 32âÂÂ0. Notre Dame defeated Drake 63âÂÂ0. St. Mary's beat the University of San Francisco, 14âÂÂ6. Neither SMC or USF play college football anymore.
October 24 Notre Dame (3âÂÂ0âÂÂ0) and Pittsburgh (4âÂÂ0âÂÂ0) met at South Bend, with Notre Dame winning 25âÂÂ12. Tulane beat Georgia Tech 33âÂÂ0; Tulane had outscored its five opponents 130âÂÂ0. Tennessee won at North Carolina, 7âÂÂ0; it had outscored its five foes 147âÂÂ0. Georgia beat Vanderbilt 9âÂÂ0. Harvard beat visiting Texas, 35âÂÂ7 and Yale and Army played to a 6âÂÂ6 tie, while in Pittsburgh, Purdue defeated Carnegie Tech 13âÂÂ6. Northwestern defeated Ohio State in Columbus, 10âÂÂ0. St. Mary's beat visiting Gonzaga University, 13âÂÂ7. USC won at California 6âÂÂ0
October 31 Tulane beat Mississippi State, but not without surrendering its first points, in a 59âÂÂ7 win; likewise, Tennessee beat Duke, but was scored upon for the first time, in its 25âÂÂ2 win Georgia won at Florida, 33âÂÂ6. Northwestern beat visiting Illinois 32âÂÂ6 and Purdue won at Chicago 14âÂÂ6. Harvard beat Virginia 19âÂÂ0 and Yale and Dartmouth played to a 33âÂÂ33 tie. Pittsburgh won at Penn State, 41âÂÂ6 Notre Dame defeated Carnegie Tech 19âÂÂ0. Surprising St. Mary's extended its record to 6âÂÂ0âÂÂ0 with a 21âÂÂ14 win over Santa Clara.
November 7 USC (4âÂÂ1âÂÂ0) and Stanford (5âÂÂ0âÂÂ1) met at Los Angeles, and USC won 19âÂÂ0. In Montgomery, Alabama, Tulane shut out Auburn 27âÂÂ0. Tennessee beat visiting Carson-Newman, 31âÂÂ0. Northwestern beat Minnesota, 32âÂÂ14. Purdue beat Centenary College 49âÂÂ6. Before a crowd of 65,000 at Yankee Stadium, Georgia stayed unbeaten as it defeated New York University 7âÂÂ6, with the aid of a 97âÂÂyard kickoff return by Buster Mott in the third quarter. Harvard beat Dartmouth 7âÂÂ6 and Yale beat St. John's College of Maryland, 52âÂÂ0. Pittsburgh beat Carnegie Tech 14âÂÂ6. Notre Dame beat Pennsylvania 49âÂÂ0. St. Mary's suffered its first defeat, to the visiting Olympic Club, 10âÂÂ0
November 11 In an Armistice Day game at Los Angeles, UCLA handed St. Mary's its second straight loss, 12âÂÂ0
November 14 Tulane (7âÂÂ0âÂÂ0) and Georgia (6âÂÂ0âÂÂ0) faced off in Athens before a crowd of 36,000 for the rights to best in the South. The Green Wave rolled over Georgia's Bulldogs 20âÂÂ7. Tennessee defeated Vanderbilt 21âÂÂ7. USC beat visiting Montana 69âÂÂ0. Harvard defeated Holy Cross 7âÂÂ0. Purdue defeated Iowa 22âÂÂ0 and Northwestern edged Indiana 7âÂÂ6. Pittsburgh beat visiting Army 26âÂÂ0. In Baltimore, Notre Dame beat Navy 20âÂÂ0
November 21 Notre Dame (6âÂÂ0âÂÂ1) had not lost a football game in almost three years, its last defeat having been to the USC Trojans on 27âÂÂ14 on December 1, 1928. A crowd of 52,000 turned out as (5âÂÂ1âÂÂ0) USC came to the Notre Dame campus in South Bend for the first time ever. The Trojans trailed 14âÂÂ0 going into the fourth quarter, and was trailing 14âÂÂ13 in the final minutes after Johnny Baker's extra point attempt had been blocked. In the final minute, Baker kicked a 34âÂÂyard field goal for a 16âÂÂ14 win, Notre Dame's first loss in 27 starts. Tulane beat Sewanee 40âÂÂ0. Northwestern won at Iowa 9âÂÂ0, and Purdue won at Indiana, 19âÂÂ0. In Columbus, Ga., Georgia beat Auburn 12âÂÂ6. Yale (3âÂÂ1âÂÂ2) hosted Harvard (7âÂÂ0âÂÂ0) and won 3âÂÂ0
November 26 On Thanksgiving Day, Pitt and Nebraska, both 7âÂÂ1âÂÂ0, met in Pittsburgh, with the home team winning 40âÂÂ0. Tennessee and Kentucky played to a 6âÂÂ6 tie in Lexington. St. Mary's defeated Oregon 16âÂÂ0.
November 28 In Yankee Stadium, a crowd of 80,000 turned out in spite of a snowstorm, and watched as Notre Dame was beaten by Army, 12âÂÂ0, for its second consecutive defeat after 26 games without a loss. Meanwhile, 40,000 watched in Chicago as Northwestern (7âÂÂ0âÂÂ1) and Purdue (8âÂÂ1âÂÂ0) met in a "post-season charity game" on a frozen field in Chicago, with the Boilermakers handing the Wildcats their first defeat, 7âÂÂ0.
Yale beat Princeton 51âÂÂ14. Tulane defeated LSU 34âÂÂ7 and Georgia defeated Georgia Tech 35âÂÂ6
December 5 Tulane beat Washington State 28âÂÂ14 to close at 11âÂÂ0âÂÂ0, unbeaten and untied, while Tennessee played NYU at Yankee Stadium, winning 13âÂÂ0 to finish at 8âÂÂ0âÂÂ1. USC defeated Washington 44âÂÂ7. St. Mary's closed its season with a 7âÂÂ2 win over Southern Methodist (SMU).
December 12 USC and Georgia, both 8âÂÂ1âÂÂ0, met in Los Angeles, and the visiting Bulldogs were crushed 60âÂÂ0
For the first time, the Rose Bowl matchup included the No. 1 ranked team under the Dickinson ratings. That team, USC, was matched against No. 2 ranked Tulane. A crowd of 83,000 turned out in Pasadena, a Rose Bowl record. Though Tulane had outgained USC in total yards (378 vs. 233) and first downs (18 vs. 11), the USC Trojans made the most of their three scoring opportunities. In the third quarter, Erny Pinckert ran 28 yards for a touchdown, then, after the Trojans recovered a Tulane fumble, scored again. USC went up 21âÂÂ0 before Tulane fought back with two touchdowns, and only a tough Trojan defense held the Green Wave from scoring more. The final result was USC 21, Tulane 12.
All major rankings (both contemporary and retroactive) have identified the University of Southern California as the season's champions, with exception of Parke H. Davis's retroactive ranking for Spalding's Official Foot Ball Guide (which identified Pittsburgh and Purdue as co-champions).
Although Tulane was unbeaten and untied (11âÂÂ0), they were second to 9âÂÂ1 USC in the final Dickinson System mathematical ratings. The teams were set to face off in the 1932 Rose Bowl on New Year's Day. The Trojans requested that presentation of the Knute Rockne Memorial Trophy be delayed until after the game. During the delay, it was decided that the Dickinson System trophy would go to the winner of the Rose Bowl game. USC ultimately won the game.