| Oct 20, 1984 | Arizona State 45, Oregon State 10 | Box score |
| Oct 20, 1984 | 13Auburn 48, Georgia Tech 34 | Box score |
| Oct 20, 1984 | Ball State 23, Western Michigan 20 | Box score |
| Oct 20, 1984 | Baylor 20, Texas A&M 16 | Box score |
| Oct 20, 1984 | Bowling Green 28, Northern Illinois 6 | Box score |
| Oct 20, 1984 | 7BYU 30, Air Force 25 | Box score |
| Oct 20, 1984 | Central Michigan 10, Miami (OH) 9 | Box score |
| Oct 20, 1984 | Clemson 54, Duke 21 | Box score |
| Oct 20, 1984 | 17Florida 48, Cincinnati 17 | Box score |
| Oct 20, 1984 | 15Florida State 27, Tulane 6 | Box score |
| Oct 20, 1984 | Fresno State 43, Utah State 18 | Box score |
| Oct 20, 1984 | 14Georgia 62, Vanderbilt 35 | Box score |
| Oct 20, 1984 | Hawai’i 20, Utah 17 | Box score |
| Oct 20, 1984 | Houston 29, 6SMU 20upset | Box score |
| Oct 20, 1984 | Illinois 34, Purdue 20 | Box score |
| Oct 20, 1984 | 18Iowa 26, Michigan 0 | Box score |
| Oct 20, 1984 | Kent State 19, Ohio 7upset | Box score |
| Oct 20, 1984 | Long Beach State 43, New Mexico State 13 | Box score |
| Oct 20, 1984 | Louisiana 35, San José State 28 | Box score |
| Oct 20, 1984 | 10LSU 36, 16Kentucky 10 | Box score |
| Oct 20, 1984 | Memphis 23, Mississippi State 12 | Box score |
| Oct 20, 1984 | 9Miami 27, Pittsburgh 7 | Box score |
| Oct 20, 1984 | Missouri 61, Kansas State 21 | Box score |
| Oct 20, 1984 | 5Nebraska 24, Colorado 7 | Box score |
| Oct 20, 1984 | UNLV 35, Pacific 21 | Box score |
| Oct 20, 1984 | North Carolina 28, NC State 21 | Box score |
| Oct 20, 1984 | Northwestern 31, Minnesota 28upset | Box score |
| Oct 20, 1984 | 8Ohio State 23, Michigan State 20 | Box score |
| Oct 20, 1984 | 2Oklahoma 12, Iowa State 10 | Box score |
| Oct 20, 1984 | 12Oklahoma State 47, Kansas 10 | Box score |
| Oct 20, 1984 | 19Penn State 21, Syracuse 3 | Box score |
| Oct 20, 1984 | Rutgers 38, Louisville 21 | Box score |
| Oct 20, 1984 | San Diego State 41, Colorado State 24 | Box score |
| Oct 20, 1984 | 11South Carolina 36, Notre Dame 32 | Box score |
| Oct 20, 1984 | USC 17, Arizona 14 | Box score |
| Oct 20, 1984 | Southern Miss 13, Ole Miss 10 | Box score |
| Oct 20, 1984 | Tennessee 28, Alabama 27 | Box score |
| Oct 20, 1984 | 3Texas 24, Arkansas 18 | Box score |
| Oct 20, 1984 | Texas Tech 30, Rice 10 | Box score |
| Oct 20, 1984 | Toledo 17, Eastern Michigan 7 | Box score |
| Oct 20, 1984 | Tulsa 55, Wichita State 20 | Box score |
| Oct 20, 1984 | UCLA 17, California 14 | Box score |
| Oct 20, 1984 | Virginia 28, Wake Forest 9 | Box score |
| Oct 20, 1984 | 1Washington 17, Oregon 10 | Box score |
| Oct 20, 1984 | Washington State 49, Stanford 42 | Box score |
| Oct 20, 1984 | 20West Virginia 21, 4Boston College 20upset | Box score |
| Oct 20, 1984 | Wisconsin 20, Indiana 16 | Box score |
| Oct 20, 1984 | Wyoming 59, New Mexico 21 | Box score |