Currently, only the final six polls from the 1998 season are available.
Week 1 Apr 27[ 3] Week 2 May 4[ 4] Week 3 May 11[ 5] Week 4 May 18[ 6] Week 5 May 25[ 7] Week 6 June 8[ 8] 1. Miami (FL) (40–5)Stanford (40–8–1) Stanford (41–9–1) Miami (FL) (46–9) Miami (FL) (50–10) Southern California (49–17) 1. 2. Stanford (36–8–1)Miami (FL) (42–7) Miami (FL) (44–8) Stanford (41–12–1) Florida (46–16) Arizona State (41–23) 2. 3. South Carolina (38–10)LSU (40–13) Florida (41–13) Wichita State (55–5) LSU (46–17) LSU (48–19) 3. 4. Florida (35–12)South Carolina (39–12) Wichita State (51–5) Florida (42–15) Southern California (44–16) Long Beach State (43–23–1) 4. 5. LSU (37–13)Florida (37–13) LSU (41–15) LSU (42–17) Florida State (53–18) Miami (FL) (51–12) 5. 6. Wichita State (39–4)Wichita State (44–5) South Carolina (42–14) Southern California (40–15) Arizona State (38–22) Mississippi State (43–23) 6. 7. Clemson (40–8)Southern California (37–13) Southern California (38–14) Rice (45–15) Long Beach State (41–21–1) Florida (46–18) 7. 8. Southern California (35–13)Cal State Fullerton (40–12) Cal State Fullerton (42–13) Cal State Fullerton (44–15) Mississippi State (41–21)Florida State (53–20) 8. 9. Rice (39–14)Rice (39–14) Rice (41–15) South Carolina (42–16) Stanford (42–14–1) Stanford (42–14–1) 9. 10. Cal State Fullerton (36–12)Clemson (40–9) Florida State (45–16) Florida State (49–18) Wichita State (56–7) Wichita State (56–7) 10. 11. Alabama (35–12)Alabama (38–13) Alabama (40–14) Auburn (43–16) Cal State Fullerton (47–17) Cal State Fullerton (47–17) 11. 12. Arizona State (32–16)Florida State (42–15) Texas A&M (40–16) Texas A&M (43–18) Auburn (46–18) Auburn (46–18) 12. 13. Texas A&M (37–15)Texas A&M (40–16) Oklahoma (38–16) Alabama (43–16) Washington (41–17) Washington (41–17) 13. 14. Florida State (40–14)Arizona State (33–20) Auburn (39–15) Oklahoma (40–18) Texas A&M (46–20) Texas A&M (46–20) 14. 15. Auburn (34–11)Auburn (36–13) Georgia Tech (37–18)Washington (39–15) Georgia Tech (41–22) Georgia Tech (41–22) 15. 16. Oklahoma State (34–13)Baylor (39–16–1) Baylor (39–16–1) Tulane (47–13) Alabama (46–18) Alabama (46–18) 16. 17. Baylor (37–14–1)Oklahoma (35–16) Arizona State (34–21) Arizona State (34–21) Rice (46–17) Rice (46–17) 17. 18. Ohio State (29–11)Oklahoma State (36–15) Clemson (42–12) Clemson (42–14) North Carolina (42–23) North Carolina (42–23) 18. 19. VCU (38–8)Washington (33–14) Washington (37–15) Georgia Tech (38–20) South Carolina (44–18) South Carolina (44–18) 19. 20. Washington (29–13)Illinois (35–17) Illinois (36–17) Long Beach State (37–20–1)Illinois (42–21) Illinois (42–21) 20. 21. Oregon State (31–11–1)South Alabama (37–14) Tulane (43–13) Baylor (40–18–1) South Alabama (42–19) South Alabama (42–19) 21. 22. Notre Dame (34–11)Mississippi State (34–16) Minnesota (42–13) Minnesota (45–13) Oklahoma (42–20) Oklahoma (42–20) 22. 23. Oklahoma (32–15)Ohio State (32–13) South Alabama (37–15) Oral Roberts (44–18) Clemson (42–16) Clemson (42–16) 23. 24. Illinois (31–16)Notre Dame (37–13) Delaware (40–8) Delaware (43–8) Harvard (36–12)Harvard (36–12) 24. 25. South Alabama (34–14)Delaware (39–8) Oral Roberts (42–18)Texas Tech (43–18) Tulane (48–15) Tulane (48–15) 25. 26. Delaware (34–8)Tulane (40–13) Ohio State (36–14) South Alabama (39–17) VCU (46–15) VCU (46–15) 26. 27. Tulane (35–12)Texas Tech (36–17) Texas Tech (39–17) Wake Forest (41–21)Wake Forest (43–23) Wake Forest (43–23) 27. 28. Texas Tech (35–17)VCU (41–11) Mississippi State (35–18) Arkansas (37–19) Baylor (41–20–1) Baylor (41–20–1) 28. 29. Mississippi State (31–15)Minnesota (37–12)VCU (42–11) North Carolina (39–21)Texas Tech (44–20) Texas Tech (44–20) 29. 30. Arkansas (30–15)San Diego State (30–20)Oregon State (35–14–1) Illinois (39–19) Rutgers (33–16)Rutgers (33–16) 30. Week 1 Apr 27[ 9] Week 2 May 4[ 10] Week 3 May 11[ 11] Week 4 May 18[ 12] Week 5 May 25[ 13] Week 6 June 8[ 14] Dropped: 21 Oregon State 30 Arkansas Dropped: 18 Oklahoma State 24 Notre Dame 30 San Diego State Dropped: 26 Ohio State 28 Mississippi State 29 VCU 30 Oregon State Dropped: 22 Minnesota 23 Oral Roberts 24 Delaware 28 Arkansas None