AP Polls
| Wk | Date | Rk | School | Prev | Chng | 1st | Conf |
|---|---|---|---|---|---|---|---|
| 17 | Final | 1 | Florida | 1 | 48 | SEC (East) | |
| 17 | Final | 2 | Utah | 7 | 5 | 16 | MWC |
| 17 | Final | 3 | USC | 5 | 2 | 1 | Pac-10 |
| 17 | Final | 4 | Texas | 3 | 1 | Big 12 (South) | |
| 17 | Final | 5 | Oklahoma | 2 | 3 | Big 12 (South) | |
| 17 | Final | 6 | Alabama | 4 | 2 | SEC (West) | |
| 17 | Final | 7 | Texas Christian | 11 | 4 | MWC | |
| 17 | Final | 8 | Penn State | 6 | 2 | Big Ten | |
| 17 | Final | 9 | Ohio State | 10 | 1 | Big Ten | |
| 17 | Final | 10 | Oregon | 15 | 5 | Pac-10 | |
| 17 | Final | 11 | Boise State | 9 | 2 | WAC | |
| 17 | Final | 12 | Texas Tech | 8 | 4 | Big 12 (South) | |
| 17 | Final | 13 | Georgia | 16 | 3 | SEC (East) | |
| 17 | Final | 14 | Ole Miss | 20 | 6 | SEC (West) | |
| 17 | Final | 15 | Virginia Tech | 21 | 6 | ACC (Coastal) | |
| 17 | Final | 16 | Oklahoma State | 13 | 3 | Big 12 (South) | |
| 17 | Final | 17 | Cincinnati | 12 | 5 | Big East | |
| 17 | Final | 18 | Oregon State | 24 | 6 | Pac-10 | |
| 17 | Final | 19 | Missouri | 25 | 6 | Big 12 (North) | |
| 17 | Final | 20 | Iowa | Big Ten | |||
| 17 | Final | 21 | Florida State | ACC (Atlantic) | |||
| 17 | Final | 22 | Georgia Tech | 14 | 8 | ACC (Coastal) | |
| 17 | Final | 23 | West Virginia | Big East | |||
| 17 | Final | 24 | Michigan State | 19 | 5 | Big Ten | |
| 17 | Final | 25 | BYU | 17 | 8 | MWC | |
| Wk | Date | Rk | School | Prev | Chng | 1st | Conf |
| 16 | 2008-12-07 | 1 | Florida (12-1) | 2 | 1 | 50 | SEC (East) |
| 16 | 2008-12-07 | 2 | Oklahoma (12-1) | 4 | 2 | 9 | Big 12 (South) |
| 16 | 2008-12-07 | 3 | Texas (11-1) | 3 | 6 | Big 12 (South) | |
| 16 | 2008-12-07 | 4 | Alabama (12-1) | 1 | 3 | SEC (West) | |
| 16 | 2008-12-07 | 5 | USC (11-1) | 5 | Pac-10 | ||
| 16 | 2008-12-07 | 6 | Penn State (11-1) | 6 | Big Ten | ||
| 16 | 2008-12-07 | 7 | Utah (12-0) | 7 | MWC | ||
| 16 | 2008-12-07 | 8 | Texas Tech (11-1) | 8 | Big 12 (South) | ||
| 16 | 2008-12-07 | 9 | Boise State (12-0) | 9 | WAC | ||
| 16 | 2008-12-07 | 10 | Ohio State (10-2) | 10 | Big Ten | ||
| 16 | 2008-12-07 | 11 | Texas Christian (10-2) | 11 | MWC | ||
| 16 | 2008-12-07 | 12 | Cincinnati (11-2) | 13 | 1 | Big East | |
| 16 | 2008-12-07 | 13 | Oklahoma State (9-3) | 14 | 1 | Big 12 (South) | |
| 16 | 2008-12-07 | 14 | Georgia Tech (9-3) | 15 | 1 | ACC (Coastal) | |
| 16 | 2008-12-07 | 15 | Oregon (9-3) | 16 | 1 | Pac-10 | |
| 16 | 2008-12-07 | 16 | Georgia (9-3) | 17 | 1 | SEC (East) | |
| 16 | 2008-12-07 | 17 | BYU (10-2) | 20 | 3 | MWC | |
| 16 | 2008-12-07 | 18 | Pitt (9-3) | 23 | 5 | Big East | |
| 16 | 2008-12-07 | 19 | Michigan State (9-3) | 21 | 2 | Big Ten | |
| 16 | 2008-12-07 | 20 | Ole Miss (8-4) | 22 | 2 | SEC (West) | |
| 16 | 2008-12-07 | 21 | Virginia Tech (9-4) | ACC (Coastal) | |||
| 16 | 2008-12-07 | 22 | Northwestern (9-3) | 24 | 2 | Big Ten | |
| 16 | 2008-12-07 | 23 | Ball State (12-1) | 12 | 11 | MAC (West) | |
| 16 | 2008-12-07 | 24 | Oregon State (8-4) | 25 | 1 | Pac-10 | |
| 16 | 2008-12-07 | 25 | Missouri (9-4) | 19 | 6 | Big 12 (North) | |
| Wk | Date | Rk | School | Prev | Chng | 1st | Conf |
| 15 | 2008-11-30 | 1 | Alabama (12-0) | 1 | 62 | SEC (West) | |
| 15 | 2008-11-30 | 2 | Florida (11-1) | 2 | 3 | SEC (East) | |
| 15 | 2008-11-30 | 3 | Texas (11-1) | 4 | 1 | Big 12 (South) | |
| 15 | 2008-11-30 | 4 | Oklahoma (11-1) | 3 | 1 | Big 12 (South) | |
| 15 | 2008-11-30 | 5 | USC (10-1) | 5 | Pac-10 | ||
| 15 | 2008-11-30 | 6 | Penn State (11-1) | 6 | Big Ten | ||
| 15 | 2008-11-30 | 7 | Utah (12-0) | 8 | 1 | MWC | |
| 15 | 2008-11-30 | 8 | Texas Tech (11-1) | 7 | 1 | Big 12 (South) | |
| 15 | 2008-11-30 | 9 | Boise State (12-0) | 9 | WAC | ||
| 15 | 2008-11-30 | 10 | Ohio State (10-2) | 10 | Big Ten | ||
| 15 | 2008-11-30 | 11 | Texas Christian (10-2) | 14 | 3 | MWC | |
| 15 | 2008-11-30 | 12 | Ball State (12-0) | 15 | 3 | MAC (West) | |
| 15 | 2008-11-30 | 13 | Cincinnati (10-2) | 16 | 3 | Big East | |
| 15 | 2008-11-30 | 14 | Oklahoma State (9-3) | 11 | 3 | Big 12 (South) | |
| 15 | 2008-11-30 | 15 | Georgia Tech (9-3) | 18 | 3 | ACC (Coastal) | |
| 15 | 2008-11-30 | 16 | Oregon (9-3) | 19 | 3 | Pac-10 | |
| 15 | 2008-11-30 | 17 | Georgia (9-3) | 13 | 4 | SEC (East) | |
| 15 | 2008-11-30 | 18 | Boston College (9-3) | 20 | 2 | ACC (Atlantic) | |
| 15 | 2008-11-30 | 19 | Missouri (9-3) | 12 | 7 | Big 12 (North) | |
| 15 | 2008-11-30 | 20 | BYU (10-2) | 20 | MWC | ||
| 15 | 2008-11-30 | 21 | Michigan State (9-3) | 22 | 1 | Big Ten | |
| 15 | 2008-11-30 | 22 | Ole Miss (8-4) | 25 | 3 | SEC (West) | |
| 15 | 2008-11-30 | 23 | Pitt (8-3) | Big East | |||
| 15 | 2008-11-30 | 24 | Northwestern (9-3) | 24 | Big Ten | ||
| 15 | 2008-11-30 | 25 | Oregon State (8-4) | 17 | 8 | Pac-10 | |
| Wk | Date | Rk | School | Prev | Chng | 1st | Conf |
| 14 | 2008-11-23 | 1 | Alabama (11-0) | 1 | 63 | SEC (West) | |
| 14 | 2008-11-23 | 2 | Florida (10-1) | 3 | 1 | 2 | SEC (East) |
| 14 | 2008-11-23 | 3 | Oklahoma (10-1) | 5 | 2 | Big 12 (South) | |
| 14 | 2008-11-23 | 4 | Texas (10-1) | 4 | Big 12 (South) | ||
| 14 | 2008-11-23 | 5 | USC (9-1) | 6 | 1 | Pac-10 | |
| 14 | 2008-11-23 | 6 | Penn State (11-1) | 7 | 1 | Big Ten | |
| 14 | 2008-11-23 | 7 | Texas Tech (10-1) | 2 | 5 | Big 12 (South) | |
| 14 | 2008-11-23 | 8 | Utah (12-0) | 8 | MWC | ||
| 14 | 2008-11-23 | 9 | Boise State (11-0) | 9 | WAC | ||
| 14 | 2008-11-23 | 10 | Ohio State (10-2) | 10 | Big Ten | ||
| 14 | 2008-11-23 | 11 | Oklahoma State (9-2) | 11 | Big 12 (South) | ||
| 14 | 2008-11-23 | 12 | Missouri (9-2) | 12 | Big 12 (North) | ||
| 14 | 2008-11-23 | 13 | Georgia (9-2) | 13 | SEC (East) | ||
| 14 | 2008-11-23 | 14 | Texas Christian (10-2) | 15 | 1 | MWC | |
| 14 | 2008-11-23 | 15 | Ball State (11-0) | 14 | 1 | MAC (West) | |
| 14 | 2008-11-23 | 16 | Cincinnati (9-2) | 19 | 3 | Big East | |
| 14 | 2008-11-23 | 17 | Oregon State (8-3) | 21 | 4 | Pac-10 | |
| 14 | 2008-11-23 | 18 | Georgia Tech (8-3) | ACC (Coastal) | |||
| 14 | 2008-11-23 | 19 | Oregon (8-3) | 24 | 5 | Pac-10 | |
| 14 | 2008-11-23 | 20 | Boston College (8-3) | ACC (Atlantic) | |||
| 14 | 2008-11-23 | 20 | BYU (10-2) | 16 | 4 | MWC | |
| 14 | 2008-11-23 | 22 | Michigan State (9-3) | 17 | 5 | Big Ten | |
| 14 | 2008-11-23 | 23 | Florida State (8-3) | ACC (Atlantic) | |||
| 14 | 2008-11-23 | 24 | Northwestern (9-3) | Big Ten | |||
| 14 | 2008-11-23 | 25 | Ole Miss (7-4) | SEC (West) | |||
| Wk | Date | Rk | School | Prev | Chng | 1st | Conf |
| 13 | 2008-11-16 | 1 | Alabama (11-0) | 1 | 42 | SEC (West) | |
| 13 | 2008-11-16 | 2 | Texas Tech (10-0) | 2 | 21 | Big 12 (South) | |
| 13 | 2008-11-16 | 3 | Florida (9-1) | 3 | 2 | SEC (East) | |
| 13 | 2008-11-16 | 4 | Texas (10-1) | 4 | Big 12 (South) | ||
| 13 | 2008-11-16 | 5 | Oklahoma (9-1) | 5 | Big 12 (South) | ||
| 13 | 2008-11-16 | 6 | USC (9-1) | 6 | Pac-10 | ||
| 13 | 2008-11-16 | 7 | Penn State (10-1) | 7 | Big Ten | ||
| 13 | 2008-11-16 | 8 | Utah (11-0) | 8 | MWC | ||
| 13 | 2008-11-16 | 9 | Boise State (10-0) | 9 | WAC | ||
| 13 | 2008-11-16 | 10 | Ohio State (9-2) | 10 | Big Ten | ||
| 13 | 2008-11-16 | 11 | Oklahoma State (9-2) | 11 | Big 12 (South) | ||
| 13 | 2008-11-16 | 12 | Missouri (9-2) | 12 | Big 12 (North) | ||
| 13 | 2008-11-16 | 13 | Georgia (9-2) | 13 | SEC (East) | ||
| 13 | 2008-11-16 | 14 | Ball State (10-0) | 14 | MAC (West) | ||
| 13 | 2008-11-16 | 15 | Texas Christian (9-2) | 15 | MWC | ||
| 13 | 2008-11-16 | 16 | BYU (10-1) | 16 | MWC | ||
| 13 | 2008-11-16 | 17 | Michigan State (9-2) | 18 | 1 | Big Ten | |
| 13 | 2008-11-16 | 18 | LSU (7-3) | 19 | 1 | SEC (West) | |
| 13 | 2008-11-16 | 19 | Cincinnati (8-2) | 22 | 3 | Big East | |
| 13 | 2008-11-16 | 20 | Pitt (7-2) | 21 | 1 | Big East | |
| 13 | 2008-11-16 | 21 | Oregon State (7-3) | 23 | 2 | Pac-10 | |
| 13 | 2008-11-16 | 22 | Maryland (7-3) | ACC (Atlantic) | |||
| 13 | 2008-11-16 | 23 | Miami (FL) (7-3) | ACC (Coastal) | |||
| 13 | 2008-11-16 | 24 | Oregon (8-3) | Pac-10 | |||
| 13 | 2008-11-16 | 25 | North Carolina (7-3) | 17 | 8 | ACC (Coastal) | |
| Wk | Date | Rk | School | Prev | Chng | 1st | Conf |
| 12 | 2008-11-09 | 1 | Alabama (10-0) | 1 | 44 | SEC (West) | |
| 12 | 2008-11-09 | 2 | Texas Tech (10-0) | 2 | 21 | Big 12 (South) | |
| 12 | 2008-11-09 | 3 | Florida (8-1) | 4 | 1 | SEC (East) | |
| 12 | 2008-11-09 | 4 | Texas (9-1) | 5 | 1 | Big 12 (South) | |
| 12 | 2008-11-09 | 5 | Oklahoma (9-1) | 6 | 1 | Big 12 (South) | |
| 12 | 2008-11-09 | 6 | USC (8-1) | 7 | 1 | Pac-10 | |
| 12 | 2008-11-09 | 7 | Penn State (9-1) | 3 | 4 | Big Ten | |
| 12 | 2008-11-09 | 8 | Utah (10-0) | 10 | 2 | MWC | |
| 12 | 2008-11-09 | 9 | Boise State (9-0) | 9 | WAC | ||
| 12 | 2008-11-09 | 10 | Ohio State (8-2) | 12 | 2 | Big Ten | |
| 12 | 2008-11-09 | 11 | Oklahoma State (8-2) | 8 | 3 | Big 12 (South) | |
| 12 | 2008-11-09 | 12 | Missouri (8-2) | 13 | 1 | Big 12 (North) | |
| 12 | 2008-11-09 | 13 | Georgia (8-2) | 14 | 1 | SEC (East) | |
| 12 | 2008-11-09 | 14 | Ball State (9-0) | 16 | 2 | MAC (West) | |
| 12 | 2008-11-09 | 15 | Texas Christian (9-2) | 11 | 4 | MWC | |
| 12 | 2008-11-09 | 16 | BYU (9-1) | 17 | 1 | MWC | |
| 12 | 2008-11-09 | 17 | North Carolina (7-2) | 19 | 2 | ACC (Coastal) | |
| 12 | 2008-11-09 | 18 | Michigan State (9-2) | 18 | Big Ten | ||
| 12 | 2008-11-09 | 19 | LSU (6-3) | 15 | 4 | SEC (West) | |
| 12 | 2008-11-09 | 20 | Florida State (7-2) | 24 | 4 | ACC (Atlantic) | |
| 12 | 2008-11-09 | 21 | Pitt (7-2) | 25 | 4 | Big East | |
| 12 | 2008-11-09 | 22 | Cincinnati (7-2) | Big East | |||
| 12 | 2008-11-09 | 23 | Oregon State (6-3) | Pac-10 | |||
| 12 | 2008-11-09 | 24 | South Carolina (7-3) | SEC (East) | |||
| 12 | 2008-11-09 | 25 | Tulsa (8-1) | CUSA (West) | |||
| Wk | Date | Rk | School | Prev | Chng | 1st | Conf |
| 11 | 2008-11-02 | 1 | Alabama (9-0) | 2 | 1 | 46 | SEC (West) |
| 11 | 2008-11-02 | 2 | Texas Tech (9-0) | 6 | 4 | 12 | Big 12 (South) |
| 11 | 2008-11-02 | 3 | Penn State (9-0) | 3 | 6 | Big Ten | |
| 11 | 2008-11-02 | 4 | Florida (7-1) | 5 | 1 | 1 | SEC (East) |
| 11 | 2008-11-02 | 5 | Texas (8-1) | 1 | 4 | Big 12 (South) | |
| 11 | 2008-11-02 | 6 | Oklahoma (8-1) | 4 | 2 | Big 12 (South) | |
| 11 | 2008-11-02 | 7 | USC (7-1) | 7 | Pac-10 | ||
| 11 | 2008-11-02 | 8 | Oklahoma State (8-1) | 9 | 1 | Big 12 (South) | |
| 11 | 2008-11-02 | 9 | Boise State (8-0) | 11 | 2 | WAC | |
| 11 | 2008-11-02 | 10 | Utah (9-0) | 10 | MWC | ||
| 11 | 2008-11-02 | 11 | Texas Christian (9-1) | 12 | 1 | MWC | |
| 11 | 2008-11-02 | 12 | Ohio State (7-2) | 13 | 1 | Big Ten | |
| 11 | 2008-11-02 | 13 | Missouri (7-2) | 14 | 1 | Big 12 (North) | |
| 11 | 2008-11-02 | 14 | Georgia (7-2) | 8 | 6 | SEC (East) | |
| 11 | 2008-11-02 | 15 | LSU (6-2) | 15 | SEC (West) | ||
| 11 | 2008-11-02 | 16 | Ball State (8-0) | 18 | 2 | MAC (West) | |
| 11 | 2008-11-02 | 17 | BYU (8-1) | 17 | MWC | ||
| 11 | 2008-11-02 | 18 | Michigan State (8-2) | 22 | 4 | Big Ten | |
| 11 | 2008-11-02 | 19 | North Carolina (6-2) | 21 | 2 | ACC (Coastal) | |
| 11 | 2008-11-02 | 20 | West Virginia (6-2) | Big East | |||
| 11 | 2008-11-02 | 21 | California (6-2) | Pac-10 | |||
| 11 | 2008-11-02 | 22 | Georgia Tech (7-2) | ACC (Coastal) | |||
| 11 | 2008-11-02 | 23 | Maryland (6-2) | 25 | 2 | ACC (Atlantic) | |
| 11 | 2008-11-02 | 24 | Florida State (6-2) | 16 | 8 | ACC (Atlantic) | |
| 11 | 2008-11-02 | 25 | Pitt (6-2) | Big East | |||
| Wk | Date | Rk | School | Prev | Chng | 1st | Conf |
| 10 | 2008-10-26 | 1 | Texas (8-0) | 1 | 65 | Big 12 (South) | |
| 10 | 2008-10-26 | 2 | Alabama (8-0) | 2 | SEC (West) | ||
| 10 | 2008-10-26 | 3 | Penn State (9-0) | 3 | Big Ten | ||
| 10 | 2008-10-26 | 4 | Oklahoma (7-1) | 4 | Big 12 (South) | ||
| 10 | 2008-10-26 | 5 | Florida (6-1) | 5 | SEC (East) | ||
| 10 | 2008-10-26 | 6 | Texas Tech (8-0) | 8 | 2 | Big 12 (South) | |
| 10 | 2008-10-26 | 7 | USC (6-1) | 6 | 1 | Pac-10 | |
| 10 | 2008-10-26 | 8 | Georgia (7-1) | 9 | 1 | SEC (East) | |
| 10 | 2008-10-26 | 9 | Oklahoma State (7-1) | 7 | 2 | Big 12 (South) | |
| 10 | 2008-10-26 | 10 | Utah (8-0) | 12 | 2 | MWC | |
| 10 | 2008-10-26 | 11 | Boise State (7-0) | 13 | 2 | WAC | |
| 10 | 2008-10-26 | 12 | Texas Christian (8-1) | 15 | 3 | MWC | |
| 10 | 2008-10-26 | 13 | Ohio State (7-2) | 10 | 3 | Big Ten | |
| 10 | 2008-10-26 | 14 | Missouri (6-2) | 16 | 2 | Big 12 (North) | |
| 10 | 2008-10-26 | 15 | LSU (5-2) | 11 | 4 | SEC (West) | |
| 10 | 2008-10-26 | 16 | Florida State (6-1) | 24 | 8 | ACC (Atlantic) | |
| 10 | 2008-10-26 | 17 | BYU (7-1) | 18 | 1 | MWC | |
| 10 | 2008-10-26 | 18 | Ball State (8-0) | 20 | 2 | MAC (West) | |
| 10 | 2008-10-26 | 19 | Tulsa (7-0) | 22 | 3 | CUSA (West) | |
| 10 | 2008-10-26 | 20 | Minnesota (7-1) | 25 | 5 | Big Ten | |
| 10 | 2008-10-26 | 21 | North Carolina (6-2) | ACC (Coastal) | |||
| 10 | 2008-10-26 | 22 | Michigan State (7-2) | Big Ten | |||
| 10 | 2008-10-26 | 23 | Oregon (6-2) | Pac-10 | |||
| 10 | 2008-10-26 | 24 | South Florida (6-2) | 14 | 10 | Big East | |
| 10 | 2008-10-26 | 25 | Maryland (6-2) | ACC (Atlantic) | |||
| Wk | Date | Rk | School | Prev | Chng | 1st | Conf |
| 9 | 2008-10-19 | 1 | Texas (7-0) | 1 | 65 | Big 12 (South) | |
| 9 | 2008-10-19 | 2 | Alabama (7-0) | 2 | SEC (West) | ||
| 9 | 2008-10-19 | 3 | Penn State (8-0) | 3 | Big Ten | ||
| 9 | 2008-10-19 | 4 | Oklahoma (6-1) | 4 | Big 12 (South) | ||
| 9 | 2008-10-19 | 5 | Florida (5-1) | 5 | SEC (East) | ||
| 9 | 2008-10-19 | 6 | USC (5-1) | 6 | Pac-10 | ||
| 9 | 2008-10-19 | 7 | Oklahoma State (7-0) | 8 | 1 | Big 12 (South) | |
| 9 | 2008-10-19 | 8 | Texas Tech (7-0) | 7 | 1 | Big 12 (South) | |
| 9 | 2008-10-19 | 9 | Georgia (6-1) | 10 | 1 | SEC (East) | |
| 9 | 2008-10-19 | 10 | Ohio State (7-1) | 12 | 2 | Big Ten | |
| 9 | 2008-10-19 | 11 | LSU (5-1) | 13 | 2 | SEC (West) | |
| 9 | 2008-10-19 | 12 | Utah (8-0) | 14 | 2 | MWC | |
| 9 | 2008-10-19 | 13 | Boise State (6-0) | 15 | 2 | WAC | |
| 9 | 2008-10-19 | 14 | South Florida (6-1) | 19 | 5 | Big East | |
| 9 | 2008-10-19 | 15 | Texas Christian (7-1) | MWC | |||
| 9 | 2008-10-19 | 16 | Missouri (5-2) | 11 | 5 | Big 12 (North) | |
| 9 | 2008-10-19 | 17 | Pitt (5-1) | 23 | 6 | Big East | |
| 9 | 2008-10-19 | 18 | BYU (6-1) | 9 | 9 | MWC | |
| 9 | 2008-10-19 | 19 | Kansas (5-2) | 16 | 3 | Big 12 (North) | |
| 9 | 2008-10-19 | 20 | Ball State (7-0) | 24 | 4 | MAC (West) | |
| 9 | 2008-10-19 | 21 | Georgia Tech (6-1) | ACC (Coastal) | |||
| 9 | 2008-10-19 | 22 | Tulsa (7-0) | CUSA (West) | |||
| 9 | 2008-10-19 | 23 | Boston College (5-1) | ACC (Atlantic) | |||
| 9 | 2008-10-19 | 24 | Florida State (5-1) | ACC (Atlantic) | |||
| 9 | 2008-10-19 | 25 | Minnesota (6-1) | Big Ten | |||
| Wk | Date | Rk | School | Prev | Chng | 1st | Conf |
| 8 | 2008-10-12 | 1 | Texas (6-0) | 5 | 4 | 39 | Big 12 (South) |
| 8 | 2008-10-12 | 2 | Alabama (6-0) | 2 | 26 | SEC (West) | |
| 8 | 2008-10-12 | 3 | Penn State (7-0) | 6 | 3 | Big Ten | |
| 8 | 2008-10-12 | 4 | Oklahoma (5-1) | 1 | 3 | Big 12 (South) | |
| 8 | 2008-10-12 | 5 | Florida (5-1) | 11 | 6 | SEC (East) | |
| 8 | 2008-10-12 | 6 | USC (4-1) | 8 | 2 | Pac-10 | |
| 8 | 2008-10-12 | 7 | Texas Tech (6-0) | 7 | Big 12 (South) | ||
| 8 | 2008-10-12 | 8 | Oklahoma State (6-0) | 17 | 9 | Big 12 (South) | |
| 8 | 2008-10-12 | 9 | BYU (6-0) | 9 | MWC | ||
| 8 | 2008-10-12 | 10 | Georgia (5-1) | 10 | SEC (East) | ||
| 8 | 2008-10-12 | 11 | Missouri (5-1) | 3 | 8 | Big 12 (North) | |
| 8 | 2008-10-12 | 12 | Ohio State (6-1) | 12 | Big Ten | ||
| 8 | 2008-10-12 | 13 | LSU (4-1) | 4 | 9 | SEC (West) | |
| 8 | 2008-10-12 | 14 | Utah (7-0) | 14 | MWC | ||
| 8 | 2008-10-12 | 15 | Boise State (5-0) | 15 | WAC | ||
| 8 | 2008-10-12 | 16 | Kansas (5-1) | 16 | Big 12 (North) | ||
| 8 | 2008-10-12 | 17 | Virginia Tech (5-1) | 18 | 1 | ACC (Coastal) | |
| 8 | 2008-10-12 | 18 | North Carolina (5-1) | 22 | 4 | ACC (Coastal) | |
| 8 | 2008-10-12 | 19 | South Florida (5-1) | 19 | Big East | ||
| 8 | 2008-10-12 | 20 | Michigan State (6-1) | 23 | 3 | Big Ten | |
| 8 | 2008-10-12 | 21 | Wake Forest (4-1) | 21 | ACC (Atlantic) | ||
| 8 | 2008-10-12 | 22 | Vanderbilt (5-1) | 13 | 9 | SEC (East) | |
| 8 | 2008-10-12 | 23 | Pitt (4-1) | 24 | 1 | Big East | |
| 8 | 2008-10-12 | 24 | Ball State (7-0) | 25 | 1 | MAC (West) | |
| 8 | 2008-10-12 | 25 | California (4-1) | Pac-10 | |||
| Wk | Date | Rk | School | Prev | Chng | 1st | Conf |
| 7 | 2008-10-05 | 1 | Oklahoma (5-0) | 1 | 51 | Big 12 (South) | |
| 7 | 2008-10-05 | 2 | Alabama (6-0) | 2 | 13 | SEC (West) | |
| 7 | 2008-10-05 | 3 | Missouri (5-0) | 4 | 1 | 1 | Big 12 (North) |
| 7 | 2008-10-05 | 4 | LSU (4-0) | 3 | 1 | SEC (West) | |
| 7 | 2008-10-05 | 5 | Texas (5-0) | 5 | Big 12 (South) | ||
| 7 | 2008-10-05 | 6 | Penn State (6-0) | 6 | Big Ten | ||
| 7 | 2008-10-05 | 7 | Texas Tech (5-0) | 7 | Big 12 (South) | ||
| 7 | 2008-10-05 | 8 | USC (3-1) | 9 | 1 | Pac-10 | |
| 7 | 2008-10-05 | 9 | BYU (5-0) | 8 | 1 | MWC | |
| 7 | 2008-10-05 | 10 | Georgia (4-1) | 11 | 1 | SEC (East) | |
| 7 | 2008-10-05 | 11 | Florida (4-1) | 12 | 1 | SEC (East) | |
| 7 | 2008-10-05 | 12 | Ohio State (5-1) | 14 | 2 | Big Ten | |
| 7 | 2008-10-05 | 13 | Vanderbilt (5-0) | 19 | 6 | SEC (East) | |
| 7 | 2008-10-05 | 14 | Utah (6-0) | 15 | 1 | MWC | |
| 7 | 2008-10-05 | 15 | Boise State (4-0) | 17 | 2 | WAC | |
| 7 | 2008-10-05 | 16 | Kansas (4-1) | 16 | Big 12 (North) | ||
| 7 | 2008-10-05 | 17 | Oklahoma State (5-0) | 21 | 4 | Big 12 (South) | |
| 7 | 2008-10-05 | 18 | Virginia Tech (5-1) | 20 | 2 | ACC (Coastal) | |
| 7 | 2008-10-05 | 19 | South Florida (5-1) | 10 | 9 | Big East | |
| 7 | 2008-10-05 | 20 | Auburn (4-2) | 13 | 7 | SEC (West) | |
| 7 | 2008-10-05 | 21 | Wake Forest (3-1) | 25 | 4 | ACC (Atlantic) | |
| 7 | 2008-10-05 | 22 | North Carolina (4-1) | ACC (Coastal) | |||
| 7 | 2008-10-05 | 23 | Michigan State (5-1) | Big Ten | |||
| 7 | 2008-10-05 | 24 | Pitt (4-1) | Big East | |||
| 7 | 2008-10-05 | 25 | Ball State (6-0) | MAC (West) | |||
| Wk | Date | Rk | School | Prev | Chng | 1st | Conf |
| 6 | 2008-09-28 | 1 | Oklahoma (4-0) | 2 | 1 | 43 | Big 12 (South) |
| 6 | 2008-09-28 | 2 | Alabama (5-0) | 8 | 6 | 21 | SEC (West) |
| 6 | 2008-09-28 | 3 | LSU (4-0) | 5 | 2 | SEC (West) | |
| 6 | 2008-09-28 | 4 | Missouri (4-0) | 6 | 2 | 1 | Big 12 (North) |
| 6 | 2008-09-28 | 5 | Texas (4-0) | 7 | 2 | Big 12 (South) | |
| 6 | 2008-09-28 | 6 | Penn State (5-0) | 12 | 6 | Big Ten | |
| 6 | 2008-09-28 | 7 | Texas Tech (4-0) | 10 | 3 | Big 12 (South) | |
| 6 | 2008-09-28 | 8 | BYU (4-0) | 11 | 3 | MWC | |
| 6 | 2008-09-28 | 9 | USC (2-1) | 1 | 8 | Pac-10 | |
| 6 | 2008-09-28 | 10 | South Florida (5-0) | 13 | 3 | Big East | |
| 6 | 2008-09-28 | 11 | Georgia (4-1) | 3 | 8 | SEC (East) | |
| 6 | 2008-09-28 | 12 | Florida (3-1) | 4 | 8 | SEC (East) | |
| 6 | 2008-09-28 | 13 | Auburn (4-1) | 15 | 2 | SEC (West) | |
| 6 | 2008-09-28 | 14 | Ohio State (4-1) | 14 | Big Ten | ||
| 6 | 2008-09-28 | 15 | Utah (5-0) | 17 | 2 | MWC | |
| 6 | 2008-09-28 | 16 | Kansas (3-1) | 18 | 2 | Big 12 (North) | |
| 6 | 2008-09-28 | 17 | Boise State (3-0) | 19 | 2 | WAC | |
| 6 | 2008-09-28 | 18 | Wisconsin (3-1) | 9 | 9 | Big Ten | |
| 6 | 2008-09-28 | 19 | Vanderbilt (4-0) | 21 | 2 | SEC (East) | |
| 6 | 2008-09-28 | 20 | Virginia Tech (4-1) | ACC (Coastal) | |||
| 6 | 2008-09-28 | 21 | Oklahoma State (4-0) | Big 12 (South) | |||
| 6 | 2008-09-28 | 22 | Fresno State (3-1) | 25 | 3 | WAC | |
| 6 | 2008-09-28 | 23 | Oregon (4-1) | Pac-10 | |||
| 6 | 2008-09-28 | 24 | Connecticut (5-0) | Big East | |||
| 6 | 2008-09-28 | 25 | Wake Forest (3-1) | 16 | 9 | ACC (Atlantic) | |
| Wk | Date | Rk | School | Prev | Chng | 1st | Conf |
| 5 | 2008-09-21 | 1 | USC (2-0) | 1 | 62 | Pac-10 | |
| 5 | 2008-09-21 | 2 | Oklahoma (3-0) | 2 | Big 12 (South) | ||
| 5 | 2008-09-21 | 3 | Georgia (4-0) | 3 | 2 | SEC (East) | |
| 5 | 2008-09-21 | 4 | Florida (3-0) | 4 | 1 | SEC (East) | |
| 5 | 2008-09-21 | 5 | LSU (3-0) | 6 | 1 | SEC (West) | |
| 5 | 2008-09-21 | 6 | Missouri (4-0) | 5 | 1 | Big 12 (North) | |
| 5 | 2008-09-21 | 7 | Texas (3-0) | 7 | Big 12 (South) | ||
| 5 | 2008-09-21 | 8 | Alabama (4-0) | 9 | 1 | SEC (West) | |
| 5 | 2008-09-21 | 9 | Wisconsin (3-0) | 8 | 1 | Big Ten | |
| 5 | 2008-09-21 | 10 | Texas Tech (4-0) | 11 | 1 | Big 12 (South) | |
| 5 | 2008-09-21 | 11 | BYU (4-0) | 14 | 3 | MWC | |
| 5 | 2008-09-21 | 12 | Penn State (4-0) | 16 | 4 | Big Ten | |
| 5 | 2008-09-21 | 13 | South Florida (4-0) | 12 | 1 | Big East | |
| 5 | 2008-09-21 | 14 | Ohio State (3-1) | 13 | 1 | Big Ten | |
| 5 | 2008-09-21 | 15 | Auburn (3-1) | 10 | 5 | SEC (West) | |
| 5 | 2008-09-21 | 16 | Wake Forest (3-0) | 18 | 2 | ACC (Atlantic) | |
| 5 | 2008-09-21 | 17 | Utah (4-0) | 20 | 3 | MWC | |
| 5 | 2008-09-21 | 18 | Kansas (3-1) | 19 | 1 | Big 12 (North) | |
| 5 | 2008-09-21 | 19 | Boise State (3-0) | WAC | |||
| 5 | 2008-09-21 | 20 | Clemson (3-1) | 23 | 3 | ACC (Atlantic) | |
| 5 | 2008-09-21 | 21 | Vanderbilt (4-0) | SEC (East) | |||
| 5 | 2008-09-21 | 22 | Illinois (2-1) | 22 | Big Ten | ||
| 5 | 2008-09-21 | 23 | East Carolina (3-1) | 15 | 8 | CUSA (East) | |
| 5 | 2008-09-21 | 24 | Texas Christian (4-0) | MWC | |||
| 5 | 2008-09-21 | 25 | Fresno State (2-1) | 25 | WAC | ||
| Wk | Date | Rk | School | Prev | Chng | 1st | Conf |
| 4 | 2008-09-14 | 1 | USC (2-0) | 1 | 61 | Pac-10 | |
| 4 | 2008-09-14 | 2 | Oklahoma (3-0) | 3 | 1 | Big 12 (South) | |
| 4 | 2008-09-14 | 3 | Georgia (3-0) | 2 | 1 | 2 | SEC (East) |
| 4 | 2008-09-14 | 4 | Florida (2-0) | 4 | 1 | SEC (East) | |
| 4 | 2008-09-14 | 5 | Missouri (3-0) | 6 | 1 | Big 12 (North) | |
| 4 | 2008-09-14 | 6 | LSU (2-0) | 7 | 1 | SEC (West) | |
| 4 | 2008-09-14 | 7 | Texas (2-0) | 8 | 1 | Big 12 (South) | |
| 4 | 2008-09-14 | 8 | Wisconsin (3-0) | 10 | 2 | Big Ten | |
| 4 | 2008-09-14 | 9 | Alabama (3-0) | 11 | 2 | SEC (West) | |
| 4 | 2008-09-14 | 10 | Auburn (3-0) | 9 | 1 | SEC (West) | |
| 4 | 2008-09-14 | 11 | Texas Tech (3-0) | 12 | 1 | Big 12 (South) | |
| 4 | 2008-09-14 | 12 | South Florida (3-0) | 19 | 7 | Big East | |
| 4 | 2008-09-14 | 13 | Ohio State (2-1) | 5 | 8 | Big Ten | |
| 4 | 2008-09-14 | 14 | BYU (3-0) | 18 | 4 | MWC | |
| 4 | 2008-09-14 | 15 | East Carolina (3-0) | 14 | 1 | CUSA (East) | |
| 4 | 2008-09-14 | 16 | Penn State (3-0) | 17 | 1 | Big Ten | |
| 4 | 2008-09-14 | 17 | Oregon (3-0) | 16 | 1 | Pac-10 | |
| 4 | 2008-09-14 | 18 | Wake Forest (2-0) | 20 | 2 | ACC (Atlantic) | |
| 4 | 2008-09-14 | 19 | Kansas (2-1) | 13 | 6 | Big 12 (North) | |
| 4 | 2008-09-14 | 20 | Utah (3-0) | 22 | 2 | MWC | |
| 4 | 2008-09-14 | 21 | West Virginia (1-1) | 25 | 4 | Big East | |
| 4 | 2008-09-14 | 22 | Illinois (2-1) | 24 | 2 | Big Ten | |
| 4 | 2008-09-14 | 23 | Clemson (2-1) | ACC (Atlantic) | |||
| 4 | 2008-09-14 | 24 | Florida State (2-0) | ACC (Atlantic) | |||
| 4 | 2008-09-14 | 25 | Fresno State (1-1) | 21 | 4 | WAC | |
| Wk | Date | Rk | School | Prev | Chng | 1st | Conf |
| 3 | 2008-09-07 | 1 | USC (1-0) | 1 | 33 | Pac-10 | |
| 3 | 2008-09-07 | 2 | Georgia (2-0) | 2 | 23 | SEC (East) | |
| 3 | 2008-09-07 | 3 | Oklahoma (2-0) | 4 | 1 | 2 | Big 12 (South) |
| 3 | 2008-09-07 | 4 | Florida (2-0) | 5 | 1 | 4 | SEC (East) |
| 3 | 2008-09-07 | 5 | Ohio State (2-0) | 3 | 2 | 1 | Big Ten |
| 3 | 2008-09-07 | 6 | Missouri (2-0) | 6 | 1 | Big 12 (North) | |
| 3 | 2008-09-07 | 7 | LSU (1-0) | 7 | 1 | SEC (West) | |
| 3 | 2008-09-07 | 8 | Texas (2-0) | 10 | 2 | Big 12 (South) | |
| 3 | 2008-09-07 | 9 | Auburn (2-0) | 9 | SEC (West) | ||
| 3 | 2008-09-07 | 10 | Wisconsin (2-0) | 11 | 1 | Big Ten | |
| 3 | 2008-09-07 | 11 | Alabama (2-0) | 13 | 2 | SEC (West) | |
| 3 | 2008-09-07 | 12 | Texas Tech (2-0) | 12 | Big 12 (South) | ||
| 3 | 2008-09-07 | 13 | Kansas (2-0) | 14 | 1 | Big 12 (North) | |
| 3 | 2008-09-07 | 14 | East Carolina (2-0) | CUSA (East) | |||
| 3 | 2008-09-07 | 15 | Arizona State (2-0) | 15 | Pac-10 | ||
| 3 | 2008-09-07 | 16 | Oregon (2-0) | 18 | 2 | Pac-10 | |
| 3 | 2008-09-07 | 17 | Penn State (2-0) | 19 | 2 | Big Ten | |
| 3 | 2008-09-07 | 18 | BYU (2-0) | 15 | 3 | MWC | |
| 3 | 2008-09-07 | 19 | South Florida (2-0) | 17 | 2 | Big East | |
| 3 | 2008-09-07 | 20 | Wake Forest (2-0) | 20 | ACC (Atlantic) | ||
| 3 | 2008-09-07 | 21 | Fresno State (1-0) | 21 | WAC | ||
| 3 | 2008-09-07 | 22 | Utah (2-0) | 22 | MWC | ||
| 3 | 2008-09-07 | 23 | California (2-0) | Pac-10 | |||
| 3 | 2008-09-07 | 24 | Illinois (1-1) | 24 | Big Ten | ||
| 3 | 2008-09-07 | 25 | West Virginia (1-1) | 8 | 17 | Big East | |
| Wk | Date | Rk | School | Prev | Chng | 1st | Conf |
| 2 | 2008-09-02 | 1 | USC (1-0) | 3 | 2 | 21 | Pac-10 |
| 2 | 2008-09-02 | 2 | Georgia (1-0) | 1 | 1 | 20 | SEC (East) |
| 2 | 2008-09-02 | 3 | Ohio State (1-0) | 2 | 1 | 15 | Big Ten |
| 2 | 2008-09-02 | 4 | Oklahoma (1-0) | 4 | 2 | Big 12 (South) | |
| 2 | 2008-09-02 | 5 | Florida (1-0) | 5 | 5 | SEC (East) | |
| 2 | 2008-09-02 | 6 | Missouri (1-0) | 6 | 1 | Big 12 (North) | |
| 2 | 2008-09-02 | 7 | LSU (1-0) | 7 | 1 | SEC (West) | |
| 2 | 2008-09-02 | 8 | West Virginia (1-0) | 8 | Big East | ||
| 2 | 2008-09-02 | 9 | Auburn (1-0) | 10 | 1 | SEC (West) | |
| 2 | 2008-09-02 | 10 | Texas (1-0) | 11 | 1 | Big 12 (South) | |
| 2 | 2008-09-02 | 11 | Wisconsin (1-0) | 13 | 2 | Big Ten | |
| 2 | 2008-09-02 | 12 | Texas Tech (1-0) | 12 | Big 12 (South) | ||
| 2 | 2008-09-02 | 13 | Alabama (1-0) | 24 | 11 | SEC (West) | |
| 2 | 2008-09-02 | 14 | Kansas (1-0) | 14 | Big 12 (North) | ||
| 2 | 2008-09-02 | 15 | Arizona State (1-0) | 15 | Pac-10 | ||
| 2 | 2008-09-02 | 15 | BYU (1-0) | 16 | 1 | MWC | |
| 2 | 2008-09-02 | 17 | South Florida (1-0) | 19 | 2 | Big East | |
| 2 | 2008-09-02 | 18 | Oregon (1-0) | 21 | 3 | Pac-10 | |
| 2 | 2008-09-02 | 19 | Penn State (1-0) | 22 | 3 | Big Ten | |
| 2 | 2008-09-02 | 20 | Wake Forest (1-0) | 23 | 3 | ACC (Atlantic) | |
| 2 | 2008-09-02 | 21 | Fresno State (1-0) | WAC | |||
| 2 | 2008-09-02 | 22 | Utah (1-0) | MWC | |||
| 2 | 2008-09-02 | 23 | UCLA (1-0) | Pac-10 | |||
| 2 | 2008-09-02 | 24 | Illinois (0-1) | 20 | 4 | Big Ten | |
| 2 | 2008-09-02 | 24 | South Carolina (1-0) | SEC (East) | |||
| Wk | Date | Rk | School | Prev | Chng | 1st | Conf |
| 1 | Preseason | 1 | Georgia | NA | — | 22 | SEC (East) |
| 1 | Preseason | 2 | Ohio State | NA | — | 21 | Big Ten |
| 1 | Preseason | 3 | USC | NA | — | 12 | Pac-10 |
| 1 | Preseason | 4 | Oklahoma | NA | — | 4 | Big 12 (South) |
| 1 | Preseason | 5 | Florida | NA | — | 6 | SEC (East) |
| 1 | Preseason | 6 | Missouri | NA | — | Big 12 (North) | |
| 1 | Preseason | 7 | LSU | NA | — | SEC (West) | |
| 1 | Preseason | 8 | West Virginia | NA | — | Big East | |
| 1 | Preseason | 9 | Clemson | NA | — | ACC (Atlantic) | |
| 1 | Preseason | 10 | Auburn | NA | — | SEC (West) | |
| 1 | Preseason | 11 | Texas | NA | — | Big 12 (South) | |
| 1 | Preseason | 12 | Texas Tech | NA | — | Big 12 (South) | |
| 1 | Preseason | 13 | Wisconsin | NA | — | Big Ten | |
| 1 | Preseason | 14 | Kansas | NA | — | Big 12 (North) | |
| 1 | Preseason | 15 | Arizona State | NA | — | Pac-10 | |
| 1 | Preseason | 16 | BYU | NA | — | MWC | |
| 1 | Preseason | 17 | Virginia Tech | NA | — | ACC (Coastal) | |
| 1 | Preseason | 18 | Tennessee | NA | — | SEC (East) | |
| 1 | Preseason | 19 | South Florida | NA | — | Big East | |
| 1 | Preseason | 20 | Illinois | NA | — | Big Ten | |
| 1 | Preseason | 21 | Oregon | NA | — | Pac-10 | |
| 1 | Preseason | 22 | Penn State | NA | — | Big Ten | |
| 1 | Preseason | 23 | Wake Forest | NA | — | ACC (Atlantic) | |
| 1 | Preseason | 24 | Alabama | NA | — | SEC (West) | |
| 1 | Preseason | 25 | Pitt | NA | — | Big East |
BCS Playoff Standings