| WEEK 1 | WEEK 2 | WEEK 3 | WEEK 4 | WEEK 5 | WEEK 6 | WEEK 7 | WEEK 8 | WEEK 9 | WEEK 10 | WEEK 11 | WEEK 12 | WEEK 13 | WEEK 14 | |
| 1 | UCLA (25) | Washington (16) | Washington (27) | Washington (27) | Washington (27) | Washington (27) | Washington (22) | Washington (22) | Washington (27) | Washington (26) | Washington (27) | Washington (27) | Washington (22) | Oklahoma (27) |
| 2 | Washington (1) | UCLA (10) | Arizona | Arizona | Arizona | Arizona | Arizona (5) | Arizona (5) | Arizona | Arizona (1) | Arizona | Arizona | Arizona (5) | UCLA |
| 3 | Fresno St. (1) | Arizona (1) | UCLA | UCLA | Arizona State | UCLA | UCLA | UCLA | UCLA | UCLA | UCLA | UCLA | UCLA | Arizona |
| 4 | Arizona | LSU | Arizona State | Arizona State | UCLA | California | California | Arizona State | Arizona State | Arizona State | Arizona State | Oklahoma | Oklahoma | Southern Mississippi |
| 5 | Southern Mississippi | Fresno State | LSU | Oklahoma | California | Arizona State | Arizona State | Fresno State | Fresno State | (tie) Fresno State | Oklahoma | Arizona State | Arizona State | Washington |
| 6 | Michigan | Arizona State | (tie) Oklahoma | California | Oklahoma | (tie) Fresno State | Fresno State | Oklahoma | Oklahoma | Oklahoma | Fresno State | Fresno State | Fresno State | Alabama |
| 7 | LSU | Oklahoma | California | Fresno State | Fresno State | Oklahoma | Oklahoma | California | LSU | LSU | LSU | LSU | LSU | California |
| 8 | Oklahoma | California | Fresno State | LSU | LSU | Stanford | Stanford | LSU | California | Southern Mississippi | Southern Mississippi | Southern Mississippi | Southern Mississippi | DePaul |
| 9 | Arizona St. | Michigan | Stanford | Stanford | Cal State Fullerton | LSU | LSU | Stanford | Stanford | California | California | California | Stanford | LSU |
| 10 | Louisiana-Lafayette | Southern Mississippi | Oregon State | Oregon State | Stanford | Southern Mississippi | Southern Mississippi | Southern Mississippi | Southern Mississippi | Alabama | Alabama | Stanford | California | Arizona State |
| 11 | Oregon St. | Stanford | Cal State Fullerton | Cal State Fullerton | Southern Mississippi | Cal State Fullerton | Oregon State | Michigan | Alabama | Michigan | Stanford | Alabama | Alabama | (tie) Fresno State |
| 12 | California | Oregon State | (tie) Southern Mississippi | Southern Mississippi | Oregon State | Oregon State | Cal State Fullerton | Oregon State | Michigan | Stanford | Oregon State | Oregon State | Cal State Fullerton | Oregon State |
| 13 | Nebraska | Louisiana-Lafayette | Iowa | Michigan | Alabama | Michigan | Michigan | Alabama | Iowa | Oregon State | Michigan | Michigan | Oregon State | Michigan |
| 14 | DePaul | Iowa | Michigan | Iowa | Iowa | Alabama | Alabama | Iowa | Oregon State | Iowa | Cal State Fullerton | Cal State Fullerton | Michigan | Nebraska |
| 15 | Long Beach St. | DePaul | Louisiana-Lafayette | Alabama | (tie) Michigan | Louisiana-Lafayette | Iowa | Long Beach State | Long Beach State | Cal State Fullerton | Iowa | Iowa | Iowa | Iowa |
| 16 | Massachusetts | Cal State Fullerton | Alabama | Louisiana-Lafayette | Louisiana-Lafayette | Iowa | Louisiana-Lafayette | Cal State Fullerton | (tie) Louisiana-Lafayette | Louisiana-Lafayette | Louisiana-Lafayette | Oregon | Louisiana-Lafayette | Oregon |
| 17 | Michigan St. | Hawai'i | Illinois-Chicago | Oklahoma State | South Carolina | South Carolina | Long Beach State | Louisiana-Lafayette | Cal State Fullerton | Long Beach State | Oregon | Louisiana-Lafayette | Notre Dame | Florida State |
| 18 | South Carolina | Illinois-Chicago | South Carolina | South Carolina | Oklahoma State | Oklahoma State | South Carolina | South Carolina | Notre Dame | Oregon | Long Beach State | Long Beach State | Nebraska | Stanford |
| 19 | Texas | Long Beach State | Hawaii | Illinois-Chicago | Long Beach State | Long Beach State | Mississippi State | Mississippi State | South Carolina | Notre Dame | Notre Dame | Notre Dame | Oregon | Cal State Fullerton |
| 20 | Hawai'i | Alabama | DePaul | Long Beach State | Illinois-Chicago | Illinois-Chicago | Oklahoma State | Oklahoma State | Mississippi State | Mississippi State | Nebraska | Nebraska | Long Beach State | Utah |
| 21 | Stanford | Nebraska | Oklahoma State | Hawai'i | Mississippi State | Mississippi State | Notre Dame | Notre Dame | Florida Atlantic | South Carolina | Mississippi State | Mississippi State | Florida Atlantic | Mississippi State |
| 22 | Illinois-Chicago | South Carolina | Long Beach State | DePaul | Hawai'i | Notre Dame | Illinois-Chicago | Oregon | Oklahoma State | Oklahoma State | Illinois-Chicago | Florida Atlantic | Mississippi State | Louisiana-Lafayette |
| 23 | Central Michigan | Massachusetts | Nebraska | Oregon | Oregon | Oregon | Oregon | Florida Atlantic | Oregon | Florida Atlantic | Oklahoma State | Illinois-Chicago | Illinois-Chicago | (tie) South Carolina |
| 24 | Missouri | Michigan State | Hofstra | Mississippi State | Texas A&M | Florida | East Carolina | East Carolina | East Carolina | East Carolina | Florida Atlantic | Oklahoma State | Florida State | Notre Dame |
| 25 | Iowa | Oklahoma State | Oregon | Texas A&M | Florida | Texas A&M | Florida Atlantic | Illinois-Chicago | Illinois-Chicago | Illinois-Chicago | (tie) South Carolina | South Carolina | South Carolina | Florida |
| Oregon | ||||||||||||||