| Oct 6, 1973 | 3Alabama 28, Georgia 14 | Box score |
| Oct 6, 1973 | Arizona 23, Iowa 20 | Box score |
| Oct 6, 1973 | 12Arizona State 67, New Mexico 24 | Box score |
| Oct 6, 1973 | Arkansas 13, TCU 5 | Box score |
| Oct 6, 1973 | Auburn 14, Ole Miss 7 | Box score |
| Oct 6, 1973 | Baylor 21, Florida State 14 | Box score |
| Oct 6, 1973 | Boston College 44, Navy 7 | Box score |
| Oct 6, 1973 | Bowling Green 49, Toledo 35 | Box score |
| Oct 6, 1973 | California 54, Washington 49 | Box score |
| Oct 6, 1973 | 18Colorado 23, Iowa State 16 | Box score |
| Oct 6, 1973 | Colorado State 33, Idaho 30 | Box score |
| Oct 6, 1973 | Columbia 14, Princeton 13 | Box score |
| Oct 6, 1973 | Dayton 23, Southern Illinois 19 | Box score |
| Oct 6, 1973 | East Carolina 45, Davidson 0 | Box score |
| Oct 6, 1973 | Georgia Tech 14, Army 10 | Box score |
| Oct 6, 1973 | Holy Cross 10, Dartmouth 0upset | Box score |
| Oct 6, 1973 | 14Houston 14, San Diego State 9 | Box score |
| Oct 6, 1973 | Indiana 28, 20West Virginia 14upset | Box score |
| Oct 6, 1973 | Kansas State 21, Memphis 16 | Box score |
| Oct 6, 1973 | Kent State 39, Western Michigan 15 | Box score |
| Oct 6, 1973 | Kentucky 42, Mississippi State 14upset | Box score |
| Oct 6, 1973 | 10LSU 24, Florida 3 | Box score |
| Oct 6, 1973 | Louisville 24, Wichita State 10 | Box score |
| Oct 6, 1973 | Maryland 38, Syracuse 0 | Box score |
| Oct 6, 1973 | Miami (OH) 31, Marshall 6 | Box score |
| Oct 6, 1973 | 5Michigan 24, Oregon 0 | Box score |
| Oct 6, 1973 | 15Missouri 17, 19SMU 7 | Box score |
| Oct 6, 1973 | 2Nebraska 48, Minnesota 7 | Box score |
| Oct 6, 1973 | New Mexico State 27, UTEP 23 | Box score |
| Oct 6, 1973 | NC State 28, North Carolina 26 | Box score |
| Oct 6, 1973 | Northern Illinois 24, Fresno State 15 | Box score |
| Oct 6, 1973 | 8Notre Dame 14, Michigan State 10 | Box score |
| Oct 6, 1973 | Ohio 14, Northwestern 12 | Box score |
| Oct 6, 1973 | 1Ohio State 27, Washington State 3 | Box score |
| Oct 6, 1973 | 6Oklahoma 24, 17Miami 20 | Box score |
| Oct 6, 1973 | San José State 21, Pacific 21 | Box score |
| Oct 6, 1973 | 7Penn State 19, Air Force 9 | Box score |
| Oct 6, 1973 | Pennsylvania 28, Brown 20 | Box score |
| Oct 6, 1973 | Purdue 27, Duke 7 | Box score |
| Oct 6, 1973 | Richmond 20, Furman 17 | Box score |
| Oct 6, 1973 | South Carolina 27, Virginia Tech 24 | Box score |
| Oct 6, 1973 | 4USC 21, Oregon State 7 | Box score |
| Oct 6, 1973 | Stanford 24, Illinois 0 | Box score |
| Oct 6, 1973 | Temple 16, Cincinnati 15 | Box score |
| Oct 6, 1973 | 9Tennessee 28, Kansas 27 | Box score |
| Oct 6, 1973 | 13Texas 41, Wake Forest 0 | Box score |
| Oct 6, 1973 | Texas A&M 30, Clemson 15 | Box score |
| Oct 6, 1973 | Texas Tech 20, 11Oklahoma State 7upset | Box score |
| Oct 6, 1973 | Tulane 24, Pittsburgh 6 | Box score |
| Oct 6, 1973 | Tulsa 44, Drake 7 | Box score |
| Oct 6, 1973 | 16UCLA 66, Utah 16 | Box score |
| Oct 6, 1973 | Utah State 13, BYU 7 | Box score |
| Oct 6, 1973 | Vanderbilt 39, Virginia 22 | Box score |
| Oct 6, 1973 | VMI 23, The Citadel 6 | Box score |
| Oct 6, 1973 | West Texas 13, Lamar 0 | Box score |
| Oct 6, 1973 | William & Mary 33, Villanova 21 | Box score |
| Oct 6, 1973 | Wisconsin 37, Wyoming 28 | Box score |
| Oct 6, 1973 | Xavier 17, Louisiana 14 | Box score |
| Oct 6, 1973 | Yale 24, Colgate 18 | Box score |