It's always a big week in the college football season when a top 10 team goes down. In Week 6, college football fans were treated to a pair of upsets.
Texas is back ... to being behind Oklahoma in the Big 12, after the Sooners outlasted the Longhorns with a late scoring drive led by Dillon Gabriel to win the Red River Rivalry for Oklahoma. At Wake Forest, Sam Hartman had several of the worst games of his career against Louisville, and that continued into his Notre Dame tenure, with the veteran QB throwing three picks to fall to Jack Plummer and the Cardinals.
Six other ranked teams lost during the hectic Saturday. Fresno State fell after a brutal first half against Wyoming, Kentucky was boat-raced by No. 1 Georgia, which finally looked at its best; Washington State fell in a Pac-12 QB showdown against Dante Moore and UCLA; and a late pick-six sealed LSU's win over Missouri. And of course, there was Miami inexplicably deciding not to kneel out a win, and instead watching Georgia Tech force and recover a fumble and roar down the field to stun Miami.
MORE: College football rankings from 1 to 133: Oklahoma, UNC jump into Top 10
The college football rankings figure to look quite a bit different after the dramatic weekend. How are they shaping up? Here's what you need to know.
College football rankings for Week 6
Coaches poll
| Ranking | Team | Record | Points (No. 1 votes) |
| 1 | Georgia | 6-0 | 1,597 (61) |
| 2 | Michigan | 6-0 | 1,512 |
| 3 | Ohio State | 5-0 | 1,443 (2) |
| 4 | Florida State | 5-0 | 1,411 |
| 5 | Penn State | 5-0 | 1,300 |
| 6 | Washington | 5-0 | 1,246 (1) |
| 7 | Oklahoma | 6-0 | 1,200 |
| 8 | Oregon | 5-0 | 1,168 |
| 9 | USC | 6-0 | 1,121 |
| 10 | Alabama | 5-1 | 1,025 |
| 11 | Texas | 5-1 | 982 |
| 12 | UNC | 5-0 | 912 |
| 13 | Mississippi | 5-1 | 764 |
| 14 | Oregon State | 5-1 | 713 |
| 15 | Louisville | 6-0 | 651 |
| 16 | Utah | 4-1 | 600 |
| 17 | Tennessee | 4-1 | 587 |
| 18 | Duke | 4-1 | 451 |
| 19 | Washington State | 4-1 | 370 |
| 20 | LSU | 4-2 | 355 |
| 21 | Notre Dame | 5-2 | 342 |
| 22 | UCLA | 4-1 | 276 |
| 23 | Kentucky | 5-1 | 159 |
| 24 | Kansas | 5-1 | 120 |
| 25 | Missouri | 5-1 | 78 |
Others receiving votes: Miami 74; Wyoming 60; Air Force 58; Iowa 57; Maryland 37; Clemson 33; West Virginia 24; Wisconsin 23; Texas A&M 22; Tulane 18; James Madison 9; Brigham Young 9; Fresno State 4; Ohio 2; Memphis 2; Florida 2; Liberty 1.
AP poll
| Ranking | Team | Record | Points (No. 1 votes) |
| 1 | Georgia | 6-0 | 1,559 (50) |
| 2 | Michigan | 6-0 | 1,489 (11) |
| 3 | Ohio State | 5-0 | 1,408 (1) |
| 4 | Florida State | 5-0 | 1,389 (1) |
| 5 | Oklahoma | 6-0 | 1,278 |
| 6 | Penn State | 5-0 | 1,273 |
| 7 | Washington | 5-0 | 1,239 |
| 8 | Oregon | 5-0 | 1,150 |
| 9 | Texas | 5-1 | 1,052 |
| 10 | USC | 6-0 | 999 |
| 11 | Alabama | 5-1 | 971 |
| 12 | UNC | 5-0 | 894 |
| 13 | Mississippi | 5-1 | 748 |
| 14 | Louisville | 6-0 | 731 |
| 15 | Oregon State | 5-1 | 725 |
| 16 | Utah | 4-1 | 567 |
| 17 | Duke | 4-1 | 479 |
| 18 | UCLA | 4-1 | 438 |
| T–19 | Washington State | 4-1 | 412 |
| T–19 | Tennessee | 4-1 | 412 |
| 21 | Notre Dame | 5-2 | 374 |
| 22 | LSU | 4-2 | 321 |
| 23 | Kansas | 5-1 | 103 |
| 24 | Kentucky | 5-1 | 99 |
| 25 | Miami | 5-1 | 74 |
Others receiving votes: Missouri 69, Wyoming 42, Air Force 41, Wisconsin 41, Tulane 27, West Virginia 26, Clemson 17, Maryland 9, Iowa 7, James Madison 7, Texas A&M 5.