AP Polls
| Wk | Date | Rk | School | Prev | Chng | Conf |
|---|---|---|---|---|---|---|
| 16 | Final | 1 | Alabama (13-1) | 4 | 3 | SEC (West) |
| 16 | Final | 2 | Georgia (13-2) | 3 | 1 | SEC (East) |
| 16 | Final | 3 | Oklahoma (12-2) | 2 | 1 | Big 12 |
| 16 | Final | 4 | Clemson (12-2) | 1 | 3 | ACC (Atlantic) |
| 16 | Final | 5 | Ohio State (12-2) | 5 | Big Ten (East) | |
| 16 | Final | 6 | UCF (13-0) | 10 | 4 | American (East) |
| 16 | Final | 7 | Wisconsin (13-1) | 6 | 1 | Big Ten (West) |
| 16 | Final | 8 | Penn State (11-2) | 9 | 1 | Big Ten (East) |
| 16 | Final | 9 | Texas Christian (11-3) | 13 | 4 | Big 12 |
| 16 | Final | 10 | Auburn (10-4) | 7 | 3 | SEC (West) |
| 16 | Final | 11 | Notre Dame (10-3) | 14 | 3 | Ind |
| 16 | Final | 12 | USC (11-3) | 8 | 4 | Pac-12 (South) |
| 16 | Final | 13 | Miami (FL) (10-3) | 11 | 2 | ACC (Coastal) |
| 16 | Final | 14 | Oklahoma State (10-3) | 17 | 3 | Big 12 |
| 16 | Final | 15 | Michigan State (10-3) | 18 | 3 | Big Ten (East) |
| 16 | Final | 16 | Washington (10-3) | 12 | 4 | Pac-12 (North) |
| 16 | Final | 17 | Northwestern (10-3) | 20 | 3 | Big Ten (West) |
| 16 | Final | 18 | LSU (9-4) | 16 | 2 | SEC (West) |
| 16 | Final | 19 | Mississippi State (9-4) | 24 | 5 | SEC (West) |
| 16 | Final | 20 | Stanford (9-5) | 15 | 5 | Pac-12 (North) |
| 16 | Final | 21 | South Florida (10-2) | 23 | 2 | American (East) |
| 16 | Final | 22 | Boise State (11-3) | 25 | 3 | MWC (Mountain) |
| 16 | Final | 23 | North Carolina State (9-4) | ACC (Atlantic) | ||
| 16 | Final | 24 | Virginia Tech (9-4) | 22 | 2 | ACC (Coastal) |
| 16 | Final | 25 | Memphis (10-3) | 19 | 6 | American (West) |
| Wk | Date | Rk | School | Prev | Chng | Conf |
| 15 | 2017-12-03 | 1 | Clemson (12-1) | 1 | ACC (Atlantic) | |
| 15 | 2017-12-03 | 2 | Oklahoma (12-1) | 2 | Big 12 | |
| 15 | 2017-12-03 | 3 | Georgia (12-1) | 6 | 3 | SEC (East) |
| 15 | 2017-12-03 | 4 | Alabama (11-1) | 5 | 1 | SEC (West) |
| 15 | 2017-12-03 | 5 | Ohio State (11-2) | 8 | 3 | Big Ten (East) |
| 15 | 2017-12-03 | 6 | Wisconsin (12-1) | 3 | 3 | Big Ten (West) |
| 15 | 2017-12-03 | 7 | Auburn (10-3) | 4 | 3 | SEC (West) |
| 15 | 2017-12-03 | 8 | USC (11-2) | 11 | 3 | Pac-12 (South) |
| 15 | 2017-12-03 | 9 | Penn State (10-2) | 9 | Big Ten (East) | |
| 15 | 2017-12-03 | 10 | UCF (12-0) | 12 | 2 | American (East) |
| 15 | 2017-12-03 | 11 | Miami (FL) (10-2) | 7 | 4 | ACC (Coastal) |
| 15 | 2017-12-03 | 12 | Washington (10-2) | 13 | 1 | Pac-12 (North) |
| 15 | 2017-12-03 | 13 | Texas Christian (10-3) | 10 | 3 | Big 12 |
| 15 | 2017-12-03 | 14 | Notre Dame (9-3) | 15 | 1 | Ind |
| 15 | 2017-12-03 | 15 | Stanford (9-4) | 14 | 1 | Pac-12 (North) |
| 15 | 2017-12-03 | 16 | LSU (9-3) | 17 | 1 | SEC (West) |
| 15 | 2017-12-03 | 17 | Oklahoma State (9-3) | 18 | 1 | Big 12 |
| 15 | 2017-12-03 | 18 | Michigan State (9-3) | 19 | 1 | Big Ten (East) |
| 15 | 2017-12-03 | 19 | Memphis (10-2) | 16 | 3 | American (West) |
| 15 | 2017-12-03 | 20 | Northwestern (9-3) | 20 | Big Ten (West) | |
| 15 | 2017-12-03 | 21 | Washington State (9-3) | 21 | Pac-12 (North) | |
| 15 | 2017-12-03 | 22 | Virginia Tech (9-3) | 22 | ACC (Coastal) | |
| 15 | 2017-12-03 | 23 | South Florida (9-2) | 23 | American (East) | |
| 15 | 2017-12-03 | 24 | Mississippi State (8-4) | 24 | SEC (West) | |
| 15 | 2017-12-03 | 25 | Boise State (10-3) | MWC (Mountain) | ||
| Wk | Date | Rk | School | Prev | Chng | Conf |
| 14 | 2017-11-27 | 1 | Clemson (11-1) | 4 | 3 | ACC (Atlantic) |
| 14 | 2017-11-27 | 2 | Oklahoma (11-1) | 3 | 1 | Big 12 |
| 14 | 2017-11-27 | 3 | Wisconsin (12-0) | 5 | 2 | Big Ten (West) |
| 14 | 2017-11-27 | 4 | Auburn (10-2) | 6 | 2 | SEC (West) |
| 14 | 2017-11-27 | 5 | Alabama (11-1) | 1 | 4 | SEC (West) |
| 14 | 2017-11-27 | 6 | Georgia (11-1) | 7 | 1 | SEC (East) |
| 14 | 2017-11-27 | 7 | Miami (FL) (10-1) | 2 | 5 | ACC (Coastal) |
| 14 | 2017-11-27 | 8 | Ohio State (10-2) | 8 | Big Ten (East) | |
| 14 | 2017-11-27 | 9 | Penn State (10-2) | 12 | 3 | Big Ten (East) |
| 14 | 2017-11-27 | 10 | Texas Christian (10-2) | 10 | Big 12 | |
| 14 | 2017-11-27 | 11 | USC (10-2) | 11 | Pac-12 (South) | |
| 14 | 2017-11-27 | 12 | UCF (11-0) | 13 | 1 | American (East) |
| 14 | 2017-11-27 | 13 | Washington (10-2) | 15 | 2 | Pac-12 (North) |
| 14 | 2017-11-27 | 14 | Stanford (9-3) | 20 | 6 | Pac-12 (North) |
| 14 | 2017-11-27 | 15 | Notre Dame (9-3) | 9 | 6 | Ind |
| 14 | 2017-11-27 | 16 | Memphis (10-1) | 17 | 1 | American (West) |
| 14 | 2017-11-27 | 17 | LSU (9-3) | 19 | 2 | SEC (West) |
| 14 | 2017-11-27 | 18 | Oklahoma State (9-3) | 18 | Big 12 | |
| 14 | 2017-11-27 | 19 | Michigan State (9-3) | 21 | 2 | Big Ten (East) |
| 14 | 2017-11-27 | 20 | Northwestern (9-3) | 23 | 3 | Big Ten (West) |
| 14 | 2017-11-27 | 21 | Washington State (9-3) | 14 | 7 | Pac-12 (North) |
| 14 | 2017-11-27 | 22 | Virginia Tech (9-3) | 24 | 2 | ACC (Coastal) |
| 14 | 2017-11-27 | 23 | South Florida (9-2) | 22 | 1 | American (East) |
| 14 | 2017-11-27 | 24 | Mississippi State (8-4) | 16 | 8 | SEC (West) |
| 14 | 2017-11-27 | 25 | Fresno State (9-3) | MWC (West) | ||
| Wk | Date | Rk | School | Prev | Chng | Conf |
| 13 | 2017-11-19 | 1 | Alabama (11-0) | 1 | SEC (West) | |
| 13 | 2017-11-19 | 2 | Miami (FL) (10-0) | 2 | ACC (Coastal) | |
| 13 | 2017-11-19 | 3 | Oklahoma (10-1) | 3 | Big 12 | |
| 13 | 2017-11-19 | 4 | Clemson (10-1) | 4 | ACC (Atlantic) | |
| 13 | 2017-11-19 | 5 | Wisconsin (11-0) | 5 | Big Ten (West) | |
| 13 | 2017-11-19 | 6 | Auburn (9-2) | 6 | SEC (West) | |
| 13 | 2017-11-19 | 7 | Georgia (10-1) | 7 | SEC (East) | |
| 13 | 2017-11-19 | 8 | Ohio State (9-2) | 8 | Big Ten (East) | |
| 13 | 2017-11-19 | 9 | Notre Dame (9-2) | 9 | Ind | |
| 13 | 2017-11-19 | 10 | Texas Christian (9-2) | 11 | 1 | Big 12 |
| 13 | 2017-11-19 | 11 | USC (10-2) | 12 | 1 | Pac-12 (South) |
| 13 | 2017-11-19 | 12 | Penn State (9-2) | 13 | 1 | Big Ten (East) |
| 13 | 2017-11-19 | 13 | UCF (10-0) | 14 | 1 | American (East) |
| 13 | 2017-11-19 | 14 | Washington State (9-2) | 15 | 1 | Pac-12 (North) |
| 13 | 2017-11-19 | 15 | Washington (9-2) | 16 | 1 | Pac-12 (North) |
| 13 | 2017-11-19 | 16 | Mississippi State (8-3) | 17 | 1 | SEC (West) |
| 13 | 2017-11-19 | 17 | Memphis (9-1) | 18 | 1 | American (West) |
| 13 | 2017-11-19 | 18 | Oklahoma State (8-3) | Big 12 | ||
| 13 | 2017-11-19 | 19 | LSU (8-3) | 21 | 2 | SEC (West) |
| 13 | 2017-11-19 | 20 | Stanford (8-3) | 20 | Pac-12 (North) | |
| 13 | 2017-11-19 | 21 | Michigan State (8-3) | 22 | 1 | Big Ten (East) |
| 13 | 2017-11-19 | 22 | South Florida (9-1) | 23 | 1 | American (East) |
| 13 | 2017-11-19 | 23 | Northwestern (8-3) | Big Ten (West) | ||
| 13 | 2017-11-19 | 24 | Virginia Tech (8-3) | ACC (Coastal) | ||
| 13 | 2017-11-19 | 25 | Boise State (9-2) | MWC (Mountain) | ||
| Wk | Date | Rk | School | Prev | Chng | Conf |
| 12 | 2017-11-12 | 1 | Alabama (10-0) | 1 | SEC (West) | |
| 12 | 2017-11-12 | 2 | Miami (FL) (9-0) | 7 | 5 | ACC (Coastal) |
| 12 | 2017-11-12 | 3 | Oklahoma (9-1) | 5 | 2 | Big 12 |
| 12 | 2017-11-12 | 4 | Clemson (9-1) | 4 | ACC (Atlantic) | |
| 12 | 2017-11-12 | 5 | Wisconsin (10-0) | 6 | 1 | Big Ten (West) |
| 12 | 2017-11-12 | 6 | Auburn (8-2) | 10 | 4 | SEC (West) |
| 12 | 2017-11-12 | 7 | Georgia (9-1) | 2 | 5 | SEC (East) |
| 12 | 2017-11-12 | 8 | Ohio State (8-2) | 11 | 3 | Big Ten (East) |
| 12 | 2017-11-12 | 9 | Notre Dame (8-2) | 3 | 6 | Ind |
| 12 | 2017-11-12 | 11 | Texas Christian (8-2) | 8 | 3 | Big 12 |
| 12 | 2017-11-12 | 12 | USC (9-2) | 15 | 3 | Pac-12 (South) |
| 12 | 2017-11-12 | 13 | Penn State (8-2) | 16 | 3 | Big Ten (East) |
| 12 | 2017-11-12 | 14 | UCF (9-0) | 14 | American (East) | |
| 12 | 2017-11-12 | 15 | Washington State (9-2) | 19 | 4 | Pac-12 (North) |
| 12 | 2017-11-12 | 16 | Washington (8-2) | 9 | 7 | Pac-12 (North) |
| 12 | 2017-11-12 | 17 | Mississippi State (7-3) | 18 | 1 | SEC (West) |
| 12 | 2017-11-12 | 18 | Memphis (8-1) | 20 | 2 | American (West) |
| 12 | 2017-11-12 | 19 | Michigan (8-2) | 21 | 2 | Big Ten (East) |
| 12 | 2017-11-12 | 20 | Stanford (7-3) | Pac-12 (North) | ||
| 12 | 2017-11-12 | 21 | LSU (7-3) | SEC (West) | ||
| 12 | 2017-11-12 | 22 | Michigan State (7-3) | 13 | 9 | Big Ten (East) |
| 12 | 2017-11-12 | 23 | South Florida (8-1) | 22 | 1 | American (East) |
| 12 | 2017-11-12 | 24 | West Virginia (7-3) | 23 | 1 | Big 12 |
| 12 | 2017-11-12 | 25 | North Carolina State (7-3) | ACC (Atlantic) | ||
| Wk | Date | Rk | School | Prev | Chng | Conf |
| 11 | 2017-11-05 | 1 | Alabama (9-0) | 1 | SEC (West) | |
| 11 | 2017-11-05 | 2 | Georgia (9-0) | 2 | SEC (East) | |
| 11 | 2017-11-05 | 3 | Notre Dame (8-1) | 5 | 2 | Ind |
| 11 | 2017-11-05 | 4 | Clemson (8-1) | 6 | 2 | ACC (Atlantic) |
| 11 | 2017-11-05 | 5 | Oklahoma (8-1) | 8 | 3 | Big 12 |
| 11 | 2017-11-05 | 6 | Wisconsin (9-0) | 4 | 2 | Big Ten (West) |
| 11 | 2017-11-05 | 7 | Miami (FL) (8-0) | 9 | 2 | ACC (Coastal) |
| 11 | 2017-11-05 | 8 | Texas Christian (8-1) | 10 | 2 | Big 12 |
| 11 | 2017-11-05 | 9 | Washington (8-1) | 12 | 3 | Pac-12 (North) |
| 11 | 2017-11-05 | 10 | Auburn (7-2) | 16 | 6 | SEC (West) |
| 11 | 2017-11-05 | 11 | Ohio State (7-2) | 3 | 8 | Big Ten (East) |
| 11 | 2017-11-05 | 12 | Oklahoma State (7-2) | 11 | 1 | Big 12 |
| 11 | 2017-11-05 | 13 | Michigan State (7-2) | 24 | 11 | Big Ten (East) |
| 11 | 2017-11-05 | 14 | UCF (8-0) | 15 | 1 | American (East) |
| 11 | 2017-11-05 | 15 | USC (8-2) | 17 | 2 | Pac-12 (South) |
| 11 | 2017-11-05 | 16 | Penn State (7-2) | 7 | 9 | Big Ten (East) |
| 11 | 2017-11-05 | 17 | Virginia Tech (7-2) | 13 | 4 | ACC (Coastal) |
| 11 | 2017-11-05 | 18 | Mississippi State (7-2) | 21 | 3 | SEC (West) |
| 11 | 2017-11-05 | 19 | Washington State (8-2) | 25 | 6 | Pac-12 (North) |
| 11 | 2017-11-05 | 20 | Memphis (8-1) | 22 | 2 | American (West) |
| 11 | 2017-11-05 | 21 | Michigan (7-2) | Big Ten (East) | ||
| 11 | 2017-11-05 | 22 | South Florida (8-1) | American (East) | ||
| 11 | 2017-11-05 | 23 | West Virginia (6-3) | Big 12 | ||
| 11 | 2017-11-05 | 24 | Iowa State (6-3) | 14 | 10 | Big 12 |
| 11 | 2017-11-05 | 25 | Iowa (6-3) | Big Ten (West) | ||
| Wk | Date | Rk | School | Prev | Chng | Conf |
| 10 | 2017-10-29 | 1 | Alabama (8-0) | 1 | SEC (West) | |
| 10 | 2017-10-29 | 2 | Georgia (8-0) | 3 | 1 | SEC (East) |
| 10 | 2017-10-29 | 3 | Ohio State (7-1) | 6 | 3 | Big Ten (East) |
| 10 | 2017-10-29 | 4 | Wisconsin (8-0) | 5 | 1 | Big Ten (West) |
| 10 | 2017-10-29 | 5 | Notre Dame (7-1) | 9 | 4 | Ind |
| 10 | 2017-10-29 | 6 | Clemson (7-1) | 7 | 1 | ACC (Atlantic) |
| 10 | 2017-10-29 | 7 | Penn State (7-1) | 2 | 5 | Big Ten (East) |
| 10 | 2017-10-29 | 8 | Oklahoma (7-1) | 10 | 2 | Big 12 |
| 10 | 2017-10-29 | 9 | Miami (FL) (7-0) | 8 | 1 | ACC (Coastal) |
| 10 | 2017-10-29 | 10 | Texas Christian (7-1) | 4 | 6 | Big 12 |
| 10 | 2017-10-29 | 11 | Oklahoma State (7-1) | 11 | Big 12 | |
| 10 | 2017-10-29 | 12 | Washington (7-1) | 12 | Pac-12 (North) | |
| 10 | 2017-10-29 | 13 | Virginia Tech (7-1) | 13 | ACC (Coastal) | |
| 10 | 2017-10-29 | 14 | Iowa State (6-2) | 25 | 11 | Big 12 |
| 10 | 2017-10-29 | 15 | UCF (7-0) | 18 | 3 | American (East) |
| 10 | 2017-10-29 | 16 | Auburn (6-2) | 19 | 3 | SEC (West) |
| 10 | 2017-10-29 | 17 | USC (7-2) | 21 | 4 | Pac-12 (South) |
| 10 | 2017-10-29 | 18 | Stanford (6-2) | 20 | 2 | Pac-12 (North) |
| 10 | 2017-10-29 | 19 | LSU (6-2) | 23 | 4 | SEC (West) |
| 10 | 2017-10-29 | 20 | North Carolina State (6-2) | 14 | 6 | ACC (Atlantic) |
| 10 | 2017-10-29 | 21 | Mississippi State (6-2) | SEC (West) | ||
| 10 | 2017-10-29 | 22 | Memphis (7-1) | 24 | 2 | American (West) |
| 10 | 2017-10-29 | 23 | Arizona (6-2) | Pac-12 (South) | ||
| 10 | 2017-10-29 | 24 | Michigan State (6-2) | 16 | 8 | Big Ten (East) |
| 10 | 2017-10-29 | 25 | Washington State (7-2) | 15 | 10 | Pac-12 (North) |
| Wk | Date | Rk | School | Prev | Chng | Conf |
| 9 | 2017-10-22 | 1 | Alabama (8-0) | 1 | SEC (West) | |
| 9 | 2017-10-22 | 2 | Penn State (7-0) | 2 | Big Ten (East) | |
| 9 | 2017-10-22 | 3 | Georgia (7-0) | 3 | SEC (East) | |
| 9 | 2017-10-22 | 4 | Texas Christian (7-0) | 4 | Big 12 | |
| 9 | 2017-10-22 | 5 | Wisconsin (7-0) | 5 | Big Ten (West) | |
| 9 | 2017-10-22 | 6 | Ohio State (6-1) | 6 | Big Ten (East) | |
| 9 | 2017-10-22 | 7 | Clemson (6-1) | 7 | ACC (Atlantic) | |
| 9 | 2017-10-22 | 8 | Miami (FL) (6-0) | 8 | ACC (Coastal) | |
| 9 | 2017-10-22 | 9 | Notre Dame (6-1) | 13 | 4 | Ind |
| 9 | 2017-10-22 | 10 | Oklahoma (6-1) | 9 | 1 | Big 12 |
| 9 | 2017-10-22 | 11 | Oklahoma State (6-1) | 10 | 1 | Big 12 |
| 9 | 2017-10-22 | 12 | Washington (6-1) | 12 | Pac-12 (North) | |
| 9 | 2017-10-22 | 13 | Virginia Tech (6-1) | 14 | 1 | ACC (Coastal) |
| 9 | 2017-10-22 | 14 | North Carolina State (6-1) | 16 | 2 | ACC (Atlantic) |
| 9 | 2017-10-22 | 15 | Washington State (7-1) | 15 | Pac-12 (North) | |
| 9 | 2017-10-22 | 16 | Michigan State (6-1) | 18 | 2 | Big Ten (East) |
| 9 | 2017-10-22 | 17 | South Florida (7-0) | 16 | 1 | American (East) |
| 9 | 2017-10-22 | 18 | UCF (6-0) | 20 | 2 | American (East) |
| 9 | 2017-10-22 | 19 | Auburn (6-2) | 21 | 2 | SEC (West) |
| 9 | 2017-10-22 | 20 | Stanford (5-2) | 22 | 2 | Pac-12 (North) |
| 9 | 2017-10-22 | 21 | USC (6-2) | 11 | 10 | Pac-12 (South) |
| 9 | 2017-10-22 | 22 | West Virginia (5-2) | 23 | 1 | Big 12 |
| 9 | 2017-10-22 | 23 | LSU (6-2) | 24 | 1 | SEC (West) |
| 9 | 2017-10-22 | 24 | Memphis (6-1) | 25 | 1 | American (West) |
| 9 | 2017-10-22 | 25 | Iowa State (5-2) | Big 12 | ||
| Wk | Date | Rk | School | Prev | Chng | Conf |
| 8 | 2017-10-15 | 1 | Alabama (7-0) | 1 | SEC (West) | |
| 8 | 2017-10-15 | 2 | Penn State (6-0) | 3 | 1 | Big Ten (East) |
| 8 | 2017-10-15 | 3 | Georgia (7-0) | 4 | 1 | SEC (East) |
| 8 | 2017-10-15 | 4 | Texas Christian (6-0) | 6 | 2 | Big 12 |
| 8 | 2017-10-15 | 5 | Wisconsin (6-0) | 7 | 2 | Big Ten (West) |
| 8 | 2017-10-15 | 6 | Ohio State (6-1) | 9 | 3 | Big Ten (East) |
| 8 | 2017-10-15 | 7 | Clemson (6-1) | 2 | 5 | ACC (Atlantic) |
| 8 | 2017-10-15 | 8 | Miami (FL) (5-0) | 11 | 3 | ACC (Coastal) |
| 8 | 2017-10-15 | 9 | Oklahoma (5-1) | 12 | 3 | Big 12 |
| 8 | 2017-10-15 | 10 | Oklahoma State (5-1) | 14 | 4 | Big 12 |
| 8 | 2017-10-15 | 11 | USC (6-1) | 13 | 2 | Pac-12 (South) |
| 8 | 2017-10-15 | 12 | Washington (6-1) | 5 | 7 | Pac-12 (North) |
| 8 | 2017-10-15 | 13 | Notre Dame (5-1) | 16 | 3 | Ind |
| 8 | 2017-10-15 | 14 | Virginia Tech (5-1) | 15 | 1 | ACC (Coastal) |
| 8 | 2017-10-15 | 15 | Washington State (6-1) | 8 | 7 | Pac-12 (North) |
| 8 | 2017-10-15 | 16 | North Carolina State (6-1) | 20 | 4 | ACC (Atlantic) |
| 8 | 2017-10-15 | 16 | South Florida (6-0) | 18 | 2 | American (East) |
| 8 | 2017-10-15 | 18 | Michigan State (5-1) | 21 | 3 | Big Ten (East) |
| 8 | 2017-10-15 | 19 | Michigan (5-1) | 17 | 2 | Big Ten (East) |
| 8 | 2017-10-15 | 20 | UCF (5-0) | 22 | 2 | American (East) |
| 8 | 2017-10-15 | 21 | Auburn (5-2) | 10 | 11 | SEC (West) |
| 8 | 2017-10-15 | 22 | Stanford (5-2) | 23 | 1 | Pac-12 (North) |
| 8 | 2017-10-15 | 23 | West Virginia (4-2) | Big 12 | ||
| 8 | 2017-10-15 | 24 | LSU (5-2) | SEC (West) | ||
| 8 | 2017-10-15 | 25 | Memphis (5-1) | American (West) | ||
| Wk | Date | Rk | School | Prev | Chng | Conf |
| 7 | 2017-10-08 | 1 | Alabama (6-0) | 1 | SEC (West) | |
| 7 | 2017-10-08 | 2 | Clemson (6-0) | 2 | ACC (Atlantic) | |
| 7 | 2017-10-08 | 3 | Penn State (6-0) | 4 | 1 | Big Ten (East) |
| 7 | 2017-10-08 | 4 | Georgia (6-0) | 5 | 1 | SEC (East) |
| 7 | 2017-10-08 | 5 | Washington (6-0) | 6 | 1 | Pac-12 (North) |
| 7 | 2017-10-08 | 6 | Texas Christian (5-0) | 8 | 2 | Big 12 |
| 7 | 2017-10-08 | 7 | Wisconsin (5-0) | 9 | 2 | Big Ten (West) |
| 7 | 2017-10-08 | 8 | Washington State (6-0) | 11 | 3 | Pac-12 (North) |
| 7 | 2017-10-08 | 9 | Ohio State (5-1) | 10 | 1 | Big Ten (East) |
| 7 | 2017-10-08 | 10 | Auburn (5-1) | 12 | 2 | SEC (West) |
| 7 | 2017-10-08 | 11 | Miami (FL) (4-0) | 13 | 2 | ACC (Coastal) |
| 7 | 2017-10-08 | 12 | Oklahoma (4-1) | 3 | 9 | Big 12 |
| 7 | 2017-10-08 | 13 | USC (5-1) | 14 | 1 | Pac-12 (South) |
| 7 | 2017-10-08 | 14 | Oklahoma State (4-1) | 15 | 1 | Big 12 |
| 7 | 2017-10-08 | 15 | Virginia Tech (5-1) | 16 | 1 | ACC (Coastal) |
| 7 | 2017-10-08 | 16 | Notre Dame (5-1) | 21 | 5 | Ind |
| 7 | 2017-10-08 | 17 | Michigan (4-1) | 7 | 10 | Big Ten (East) |
| 7 | 2017-10-08 | 18 | South Florida (5-0) | 18 | American (East) | |
| 7 | 2017-10-08 | 19 | San Diego State (6-0) | 19 | MWC (West) | |
| 7 | 2017-10-08 | 20 | North Carolina State (5-1) | 24 | 4 | ACC (Atlantic) |
| 7 | 2017-10-08 | 21 | Michigan State (4-1) | Big Ten (East) | ||
| 7 | 2017-10-08 | 22 | UCF (4-0) | 25 | 3 | American (East) |
| 7 | 2017-10-08 | 23 | Stanford (4-2) | Pac-12 (North) | ||
| 7 | 2017-10-08 | 24 | Texas Tech (4-1) | Big 12 | ||
| 7 | 2017-10-08 | 25 | Navy (5-0) | American (West) | ||
| Wk | Date | Rk | School | Prev | Chng | Conf |
| 6 | 2017-10-01 | 1 | Alabama (5-0) | 1 | SEC (West) | |
| 6 | 2017-10-01 | 2 | Clemson (5-0) | 2 | ACC (Atlantic) | |
| 6 | 2017-10-01 | 3 | Oklahoma (4-0) | 3 | Big 12 | |
| 6 | 2017-10-01 | 4 | Penn State (5-0) | 4 | Big Ten (East) | |
| 6 | 2017-10-01 | 5 | Georgia (5-0) | 7 | 2 | SEC (East) |
| 6 | 2017-10-01 | 6 | Washington (5-0) | 6 | Pac-12 (North) | |
| 6 | 2017-10-01 | 7 | Michigan (4-0) | 8 | 1 | Big Ten (East) |
| 6 | 2017-10-01 | 8 | Texas Christian (4-0) | 9 | 1 | Big 12 |
| 6 | 2017-10-01 | 9 | Wisconsin (4-0) | 10 | 1 | Big Ten (West) |
| 6 | 2017-10-01 | 10 | Ohio State (4-1) | 11 | 1 | Big Ten (East) |
| 6 | 2017-10-01 | 11 | Washington State (5-0) | 16 | 5 | Pac-12 (North) |
| 6 | 2017-10-01 | 12 | Auburn (4-1) | 13 | 1 | SEC (West) |
| 6 | 2017-10-01 | 13 | Miami (FL) (3-0) | 14 | 1 | ACC (Coastal) |
| 6 | 2017-10-01 | 14 | USC (4-1) | 5 | 9 | Pac-12 (South) |
| 6 | 2017-10-01 | 15 | Oklahoma State (4-1) | 15 | Big 12 | |
| 6 | 2017-10-01 | 16 | Virginia Tech (4-1) | 12 | 4 | ACC (Coastal) |
| 6 | 2017-10-01 | 17 | Louisville (4-1) | 17 | ACC (Atlantic) | |
| 6 | 2017-10-01 | 18 | South Florida (5-0) | 18 | American (East) | |
| 6 | 2017-10-01 | 19 | San Diego State (5-0) | 19 | MWC (West) | |
| 6 | 2017-10-01 | 20 | Utah (4-0) | 20 | Pac-12 (South) | |
| 6 | 2017-10-01 | 21 | Florida (3-1) | 21 | SEC (East) | |
| 6 | 2017-10-01 | 21 | Notre Dame (4-1) | 22 | 1 | Ind |
| 6 | 2017-10-01 | 23 | West Virginia (3-1) | 23 | Big 12 | |
| 6 | 2017-10-01 | 24 | North Carolina State (4-1) | ACC (Atlantic) | ||
| 6 | 2017-10-01 | 25 | UCF (3-0) | American (East) | ||
| Wk | Date | Rk | School | Prev | Chng | Conf |
| 5 | 2017-09-24 | 1 | Alabama (4-0) | 1 | SEC (West) | |
| 5 | 2017-09-24 | 2 | Clemson (4-0) | 2 | ACC (Atlantic) | |
| 5 | 2017-09-24 | 3 | Oklahoma (4-0) | 3 | Big 12 | |
| 5 | 2017-09-24 | 4 | Penn State (4-0) | 4 | Big Ten (East) | |
| 5 | 2017-09-24 | 5 | USC (4-0) | 5 | Pac-12 (South) | |
| 5 | 2017-09-24 | 6 | Washington (4-0) | 7 | 1 | Pac-12 (North) |
| 5 | 2017-09-24 | 7 | Georgia (4-0) | 11 | 4 | SEC (East) |
| 5 | 2017-09-24 | 8 | Michigan (4-0) | 8 | Big Ten (East) | |
| 5 | 2017-09-24 | 9 | Texas Christian (4-0) | 16 | 7 | Big 12 |
| 5 | 2017-09-24 | 10 | Wisconsin (3-0) | 9 | 1 | Big Ten (West) |
| 5 | 2017-09-24 | 11 | Ohio State (3-1) | 10 | 1 | Big Ten (East) |
| 5 | 2017-09-24 | 12 | Virginia Tech (4-0) | 13 | 1 | ACC (Coastal) |
| 5 | 2017-09-24 | 13 | Auburn (3-1) | 15 | 2 | SEC (West) |
| 5 | 2017-09-24 | 14 | Miami (FL) (2-0) | 14 | ACC (Coastal) | |
| 5 | 2017-09-24 | 15 | Oklahoma State (3-1) | 6 | 9 | Big 12 |
| 5 | 2017-09-24 | 16 | Washington State (4-0) | 18 | 2 | Pac-12 (North) |
| 5 | 2017-09-24 | 17 | Louisville (3-1) | 19 | 2 | ACC (Atlantic) |
| 5 | 2017-09-24 | 18 | South Florida (4-0) | 21 | 3 | American (East) |
| 5 | 2017-09-24 | 19 | San Diego State (4-0) | 22 | 3 | MWC (West) |
| 5 | 2017-09-24 | 20 | Utah (4-0) | 23 | 3 | Pac-12 (South) |
| 5 | 2017-09-24 | 21 | Florida (2-1) | 20 | 1 | SEC (East) |
| 5 | 2017-09-24 | 22 | Notre Dame (3-1) | Ind | ||
| 5 | 2017-09-24 | 23 | West Virginia (3-1) | Big 12 | ||
| 5 | 2017-09-24 | 24 | Mississippi State (3-1) | 17 | 7 | SEC (West) |
| 5 | 2017-09-24 | 25 | LSU (3-1) | 25 | SEC (West) | |
| Wk | Date | Rk | School | Prev | Chng | Conf |
| 4 | 2017-09-17 | 1 | Alabama (3-0) | 1 | SEC (West) | |
| 4 | 2017-09-17 | 2 | Clemson (3-0) | 3 | 1 | ACC (Atlantic) |
| 4 | 2017-09-17 | 3 | Oklahoma (3-0) | 2 | 1 | Big 12 |
| 4 | 2017-09-17 | 4 | Penn State (3-0) | 5 | 1 | Big Ten (East) |
| 4 | 2017-09-17 | 5 | USC (3-0) | 4 | 1 | Pac-12 (South) |
| 4 | 2017-09-17 | 6 | Oklahoma State (3-0) | 9 | 3 | Big 12 |
| 4 | 2017-09-17 | 7 | Washington (3-0) | 6 | 1 | Pac-12 (North) |
| 4 | 2017-09-17 | 8 | Michigan (3-0) | 7 | 1 | Big Ten (East) |
| 4 | 2017-09-17 | 9 | Wisconsin (3-0) | 10 | 1 | Big Ten (West) |
| 4 | 2017-09-17 | 10 | Ohio State (2-1) | 8 | 2 | Big Ten (East) |
| 4 | 2017-09-17 | 11 | Georgia (3-0) | 13 | 2 | SEC (East) |
| 4 | 2017-09-17 | 12 | Florida State (0-1) | 11 | 1 | ACC (Atlantic) |
| 4 | 2017-09-17 | 13 | Virginia Tech (3-0) | 16 | 3 | ACC (Coastal) |
| 4 | 2017-09-17 | 14 | Miami (FL) (1-0) | 17 | 3 | ACC (Coastal) |
| 4 | 2017-09-17 | 15 | Auburn (2-1) | 15 | SEC (West) | |
| 4 | 2017-09-17 | 16 | Texas Christian (3-0) | 20 | 4 | Big 12 |
| 4 | 2017-09-17 | 17 | Mississippi State (3-0) | SEC (West) | ||
| 4 | 2017-09-17 | 18 | Washington State (3-0) | 21 | 3 | Pac-12 (North) |
| 4 | 2017-09-17 | 19 | Louisville (2-1) | 14 | 5 | ACC (Atlantic) |
| 4 | 2017-09-17 | 20 | Florida (1-1) | 24 | 4 | SEC (East) |
| 4 | 2017-09-17 | 21 | South Florida (3-0) | 22 | 1 | American (East) |
| 4 | 2017-09-17 | 22 | San Diego State (3-0) | MWC (West) | ||
| 4 | 2017-09-17 | 23 | Utah (3-0) | Pac-12 (South) | ||
| 4 | 2017-09-17 | 24 | Oregon (3-0) | Pac-12 (North) | ||
| 4 | 2017-09-17 | 25 | LSU (2-1) | 12 | 13 | SEC (West) |
| Wk | Date | Rk | School | Prev | Chng | Conf |
| 3 | 2017-09-10 | 1 | Alabama (2-0) | 1 | SEC (West) | |
| 3 | 2017-09-10 | 2 | Oklahoma (2-0) | 5 | 3 | Big 12 |
| 3 | 2017-09-10 | 3 | Clemson (2-0) | 3 | ACC (Atlantic) | |
| 3 | 2017-09-10 | 4 | USC (2-0) | 6 | 2 | Pac-12 (South) |
| 3 | 2017-09-10 | 5 | Penn State (2-0) | 4 | 1 | Big Ten (East) |
| 3 | 2017-09-10 | 6 | Washington (2-0) | 7 | 1 | Pac-12 (North) |
| 3 | 2017-09-10 | 7 | Michigan (2-0) | 8 | 1 | Big Ten (East) |
| 3 | 2017-09-10 | 8 | Ohio State (1-1) | 2 | 6 | Big Ten (East) |
| 3 | 2017-09-10 | 9 | Oklahoma State (2-0) | 11 | 2 | Big 12 |
| 3 | 2017-09-10 | 10 | Wisconsin (2-0) | 9 | 1 | Big Ten (West) |
| 3 | 2017-09-10 | 11 | Florida State (0-1) | 10 | 1 | ACC (Atlantic) |
| 3 | 2017-09-10 | 12 | LSU (2-0) | 12 | SEC (West) | |
| 3 | 2017-09-10 | 13 | Georgia (2-0) | 15 | 2 | SEC (East) |
| 3 | 2017-09-10 | 14 | Louisville (2-0) | 17 | 3 | ACC (Atlantic) |
| 3 | 2017-09-10 | 15 | Auburn (1-1) | 13 | 2 | SEC (West) |
| 3 | 2017-09-10 | 16 | Virginia Tech (2-0) | 18 | 2 | ACC (Coastal) |
| 3 | 2017-09-10 | 17 | Miami (FL) (1-0) | 16 | 1 | ACC (Coastal) |
| 3 | 2017-09-10 | 18 | Kansas State (2-0) | 19 | 1 | Big 12 |
| 3 | 2017-09-10 | 19 | Stanford (1-1) | 14 | 5 | Pac-12 (North) |
| 3 | 2017-09-10 | 20 | Texas Christian (2-0) | 23 | 3 | Big 12 |
| 3 | 2017-09-10 | 21 | Washington State (2-0) | 20 | 1 | Pac-12 (North) |
| 3 | 2017-09-10 | 22 | South Florida (2-0) | 21 | 1 | American (East) |
| 3 | 2017-09-10 | 23 | Tennessee (2-0) | 25 | 2 | SEC (East) |
| 3 | 2017-09-10 | 24 | Florida (0-1) | 22 | 2 | SEC (East) |
| 3 | 2017-09-10 | 25 | UCLA (2-0) | Pac-12 (South) | ||
| Wk | Date | Rk | School | Prev | Chng | Conf |
| 2 | 2017-09-05 | 1 | Alabama (1-0) | 1 | SEC (West) | |
| 2 | 2017-09-05 | 2 | Ohio State (1-0) | 2 | Big Ten (East) | |
| 2 | 2017-09-05 | 3 | Clemson (1-0) | 5 | 2 | ACC (Atlantic) |
| 2 | 2017-09-05 | 4 | Penn State (1-0) | 6 | 2 | Big Ten (East) |
| 2 | 2017-09-05 | 5 | Oklahoma (1-0) | 7 | 2 | Big 12 |
| 2 | 2017-09-05 | 6 | USC (1-0) | 4 | 2 | Pac-12 (South) |
| 2 | 2017-09-05 | 7 | Washington (1-0) | 8 | 1 | Pac-12 (North) |
| 2 | 2017-09-05 | 8 | Michigan (1-0) | 11 | 3 | Big Ten (East) |
| 2 | 2017-09-05 | 9 | Wisconsin (1-0) | 9 | Big Ten (West) | |
| 2 | 2017-09-05 | 10 | Florida State (0-1) | 3 | 7 | ACC (Atlantic) |
| 2 | 2017-09-05 | 11 | Oklahoma State (1-0) | 10 | 1 | Big 12 |
| 2 | 2017-09-05 | 12 | LSU (1-0) | 13 | 1 | SEC (West) |
| 2 | 2017-09-05 | 13 | Auburn (1-0) | 12 | 1 | SEC (West) |
| 2 | 2017-09-05 | 14 | Stanford (1-0) | 14 | Pac-12 (North) | |
| 2 | 2017-09-05 | 15 | Georgia (1-0) | 15 | SEC (East) | |
| 2 | 2017-09-05 | 16 | Miami (FL) (1-0) | 18 | 2 | ACC (Coastal) |
| 2 | 2017-09-05 | 17 | Louisville (1-0) | 16 | 1 | ACC (Atlantic) |
| 2 | 2017-09-05 | 18 | Virginia Tech (1-0) | 21 | 3 | ACC (Coastal) |
| 2 | 2017-09-05 | 19 | Kansas State (1-0) | 20 | 1 | Big 12 |
| 2 | 2017-09-05 | 20 | Washington State (1-0) | 24 | 4 | Pac-12 (North) |
| 2 | 2017-09-05 | 21 | South Florida (2-0) | 19 | 2 | American (East) |
| 2 | 2017-09-05 | 22 | Florida (0-1) | 17 | 5 | SEC (East) |
| 2 | 2017-09-05 | 23 | Texas Christian (1-0) | Big 12 | ||
| 2 | 2017-09-05 | 24 | Notre Dame (1-0) | Ind | ||
| 2 | 2017-09-05 | 25 | Tennessee (1-0) | 25 | SEC (East) | |
| Wk | Date | Rk | School | Prev | Chng | Conf |
| 1 | Preseason | 1 | Alabama | NA | — | SEC (West) |
| 1 | Preseason | 2 | Ohio State | NA | — | Big Ten (East) |
| 1 | Preseason | 3 | Florida State | NA | — | ACC (Atlantic) |
| 1 | Preseason | 4 | USC | NA | — | Pac-12 (South) |
| 1 | Preseason | 5 | Clemson | NA | — | ACC (Atlantic) |
| 1 | Preseason | 6 | Penn State | NA | — | Big Ten (East) |
| 1 | Preseason | 7 | Oklahoma | NA | — | Big 12 |
| 1 | Preseason | 8 | Washington | NA | — | Pac-12 (North) |
| 1 | Preseason | 9 | Wisconsin | NA | — | Big Ten (West) |
| 1 | Preseason | 10 | Oklahoma State | NA | — | Big 12 |
| 1 | Preseason | 11 | Michigan | NA | — | Big Ten (East) |
| 1 | Preseason | 12 | Auburn | NA | — | SEC (West) |
| 1 | Preseason | 13 | LSU | NA | — | SEC (West) |
| 1 | Preseason | 14 | Stanford | NA | — | Pac-12 (North) |
| 1 | Preseason | 15 | Georgia | NA | — | SEC (East) |
| 1 | Preseason | 16 | Louisville | NA | — | ACC (Atlantic) |
| 1 | Preseason | 17 | Florida | NA | — | SEC (East) |
| 1 | Preseason | 18 | Miami (FL) | NA | — | ACC (Coastal) |
| 1 | Preseason | 19 | South Florida | NA | — | American (East) |
| 1 | Preseason | 20 | Kansas State | NA | — | Big 12 |
| 1 | Preseason | 21 | Virginia Tech | NA | — | ACC (Coastal) |
| 1 | Preseason | 22 | West Virginia | NA | — | Big 12 |
| 1 | Preseason | 23 | Texas | NA | — | Big 12 |
| 1 | Preseason | 24 | Washington State | NA | — | Pac-12 (North) |
| 1 | Preseason | 25 | Tennessee | NA | — | SEC (East) |
CFB Playoff Rankings