# 2018 NCAA men's water polo rankings

The 2018 NCAA men's water polo rankings is a human poll designated to rank the top 20 men's college water polo programs at the NCAA Division I, II, and III levels.. The official rankings recognized by the National Collegiate Athletic Association (NCAA) are determined by the Collegiate Water Polo Association (CWPA), and have released rankings for this competition since 2008. The rankings are updated weekly at the beginning of the season and finalized at the conclusion of the 2018 NCAA Men's Water Polo Championship.

## Legend

Legend :
| | Increase in ranking |
| | Decrease in ranking |
| | Not ranked previous week |
| | Selected for NCAA Tournament |
| Italics | Number of first place votes |
| (#–#) | Win–loss record |
| т | Tied with team above or below also with this symbol |

## CWPA Poll

| | Preseason Aug 22 | Week 1 Sep 5 | Week 2 Sep 12 | Week 3 Sep 19 | Week 4 Sep 26 | Week 5 Oct 3 | Week 6 Oct 10 | Week 7 Oct 17 | Week 8 Oct 24 | Week 9 Nov 1 | Week 10 Nov 8 | Week 11 Nov 15 | Week 12 Nov 21 | Week 13 Nov 28 | Week 14 (Final) Dec 5 | |
| 1. | UCLA | USC т | USC | USC | USC | USC | Stanford | USC | | | | | Stanford | | | 1. |
| 2. | USC | UCLA т | UCLA | UCLA | UCLA | UCLA | UCLA | Stanford | | | | | UCLA т | | | 2. |
| 3. | California | California | California | Stanford | Stanford | Stanford | USC | UCLA | | | | | USC т | | | 3. |
| 4. | Stanford | Stanford | Stanford | California | California | California | California | California | | | | | California | | | 4. |
| 5. | Pacific | Pacific | Pacific | UC Santa Barbara | UC Santa Barbara | UC Santa Barbara | UC Santa Barbara | UC Santa Barbara | | | | | UC Santa Barbara т | | | 5. |
| 6. | Long Beach State | Long Beach State | Long Beach State | Pacific | Pacific | Pacific | Pacific | Pepperdine | | | | | Long Beach State т | | | 6. |
| 7. | UC Davis | UC Santa Barbara | UC Santa Barbara | Long Beach State | Harvard | Harvard | UC Davis | Pacific | | | | | UC San Diego | | | 7. |
| 8. | Pepperdine | Pepperdine | UC Davis | Harvard т | UC San Diego т | UC San Diego | Pepperdine | Long Beach State | | | | | Pacific | | | 8. |
| 9. | UC Irvine | Harvard | Harvard | UC Davis т | UC Davis т | UC Davis | Long Beach State | UC Davis | | | | | Pepperdine | | | 9. |
| 10. | UC Santa Barbara | UC Irvine | Pepperdine | Pepperdine | Long Beach State | Long Beach State | Harvard | UC San Diego | | | | | UC Davis | | | 10. |
| 11. | Harvard | UC Davis | UC San Diego | UC San Diego | Pepperdine | Pepperdine | UC San Diego | UC Irvine | | | | | Loyola Marymount | | | 11. |
| 12. | UC San Diego | UC San Diego | UC Irvine | UC Irvine | Princeton | UC Irvine т | UC Irvine | Princeton | | | | | Princeton | | | 12. |
| 13. | Princeton | Princeton | Princeton | Princeton | UC Irvine | Princeton т | Brown | Harvard | | | | | Harvard | | | 13. |
| 14. | San Jose State | Bucknell | Bucknell | Bucknell | California Baptist | California Baptist | Princeton | Bucknell | | | | | UC Irvine | | | 14. |
| 15. | Brown | San Jose State | George Washington | California Baptist | Bucknell | Pomona–Pitzer | Pomona–Pitzer | California Baptist | | | | | California Baptist | | | 15. |
| 16. | California Baptist | California Baptist | Pomona–Pitzer | Pomona–Pitzer | Pomona–Pitzer | San Jose State | California Baptist | Brown т | | | | | Bucknell т | | | 16. |
| 17. | Pomona–Pitzer | Brown | San Jose State | San Jose State | San Jose State | George Washington | Bucknell | Pomona–Pitzer т | | | | | George Washington т | | | 17. |
| 18. | George Washington | George Washington | California Baptist т | George Washington | Wagner т | Wagner | San Jose State | Loyola Marymount | | | | | Santa Clara | | | 18. |
| 19. | St. Francis Brooklyn | Pomona–Pitzer | Brown т | Whittier т | Loyola Marymount т | Loyola Marymount | George Washington | San Jose State | | | | | Pomona-Pitzer | | | 19. |
| 20. | Bucknell т | Loyola Marymount | Santa Clara | Brown т | George Washington т | Bucknell | Wagner | George Washington т | | | | | St. Francis Brooklyn | | | 20. |
| | Preseason Aug 22 | Week 1 Sep 5 | Week 2 Sep 12 | Week 3 Sep 19 | Week 4 Sep 26 | Week 5 Oct 3 | Week 6 Oct 10 | Week 7 Oct 17 | Week 8 Oct 24 | Week 9 Nov 1 | Week 10 Nov 8 | Week 11 Nov 15 | Week 12 Nov 21 | Week 13 Nov 28 | Week 14 (Final) Dec 5 | |
| | | Dropped: St. Francis Brooklyn | Dropped: Loyola Marymount | Dropped: Santa Clara | Dropped: Brown | Dropped: Whittier | Dropped: Loyola Marymount | Dropped: Wagner | None | None | None | None | None | None | None | |