1998 NCAA Division I-A football rankings AP poll AP poll

| Preseason | Week_1_Sept_7 | Week_2_Sept_14 | Week_3_Sept_21 | Week_4_Sept_28 | Week_5_Oct_5 | Week_6_Oct_12 | Week_7_Oct_19 | Week_8_Oct_26 | Week_9_Nov_2 | Week_10_Nov_9 | Week_11_Nov_16 | Week_12_Nov_23 | Week_13_Nov_30 | Week_14_Dec_7 | Week_15_Final_Jan_5 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Syracuse | Wisconsin (1-0) | Texas A&M (1-1) | Texas A&M (2-1) | Oregon (4-0) | Virginia Tech (4-0) | Arkansas (5-0) | Colorado (6-1) | Syracuse (4-2) | N/A | Georgia (6-2) | Nebraska (8-3) | Georgia Tech (8-2) | Air Force (10-1) | Notre Dame (9-2) | Penn State (9-3) |
| Washington | Texas A&M (0-1) | USC (2-0) | USC (3-0) | Texas A&M (3-1) | Texas A&M (4-1) | Notre Dame (4-1) | Notre Dame (4-1) | Missouri (5-2) | Missouri (6-2) | Texas (7-2) | Virginia (8-2) | Air Force (10-1) | Syracuse (8-3) | Syracuse (8-3) | Virginia (9-3) |
| Georgia | Syracuse (0-1) | West Virginia (0-1) | West Virginia (1-1) | Virginia Tech (4-0) | USC (4-1) | Colorado (5-1) | Missouri (5-1) | Tulane (6-0) | Georgia (6-2) | Penn State (6-2) | Missouri (7-3) | Miami (FL) (7-2) | Georgia (8-3) | Georgia (8-3) | Nebraska (9-4) |