30 swimmers
| # | Swimmer | Team | LSC | Time | Date |
|---|---|---|---|---|---|
| 1 | Angela Duckworth AZSUN3 | AZSUN3 | AZ | 16:46.58 | 2008-11-28 |
| 2 | Laila Oravsky ININD | ININD | IN | 16:49.62 | 2025-10-19 |
| 3 | Kylie Thompson FMC | FMC | PC | 17:15.38 | 2025-10-19 |
| 4 | Camille Dayton AKANC | AKANC | AK | 18:35.43 | 2018-06-15 |
| 5 | Matilyn Wilhelmsen AZMES | AZMES | AZ | 18:39.85 | 2024-01-12 |
| 6 | Hannah Iverson NLSC | NLSC | AK | 18:59.44 | 2010-01-29 |
| 7 | Ellie Burkhardt TOC | TOC | PC | 19:00.53 | 2025-01-26 |
| 8 | Amanda Vu TOC | TOC | PC | 19:00.58 | 2025-01-26 |
| 9 | Liana Smith NLSC | NLSC | AK | 19:11.91 | 2006-01-27 |
| 10 | Jamie Ling WAC | WAC | SN | 19:27.58 | 2026-01-25 |
| 11 | Katie Jennings INGRE3 | INGRE3 | IN | 19:48.40 | 2026-05-16 |
| 12 | Holly Kolkebeck AZGRA2 | AZGRA2 | AZ | 19:51.89 | 2014-01-10 |
| 13 | Emily Markle AZMES | AZMES | AZ | 20:00.33 | 2024-01-12 |
| 14 | Clara Mae Samko ADHAWK | ADHAWK | AD | 20:19.29 | 2025-07-22 |
| 15 | Anna Seitz AKALA2 | AKALA2 | AK | 20:21.16 | 2006-01-27 |
| 16 | Kate Suchowiecki ADHAWK | ADHAWK | AD | 20:22.79 | 2025-07-22 |
| 17 | Maddy Franz MSST | MSST | AK | 20:28.77 | 2010-01-29 |
| 18 | Cassidy Welsh MSST | MSST | AK | 20:28.82 | 2022-06-10 |
| 19 | Maya Pizzarello ADHAWK | ADHAWK | AD | 20:31.68 | 2025-07-22 |
| 20 | Jessie Parsons AKALA2 | AKALA2 | AK | 20:44.86 | 2006-01-27 |
| 21 | Kari Nore AKNOR | AKNOR | AK | 21:05.74 | 2010-01-29 |
| 22 | Jaylen Lembas AZMES | AZMES | AZ | 21:13.46 | 2024-01-12 |
| 23 | Annie Smith MSST | MSST | AK | 21:30.65 | 2010-01-29 |
| 24 | Jellybean Hunter TAC | TAC | PN | 22:30.69 | 2025-05-02 |
| 25 | Elizabeth Walsh TOC | TOC | PC | 22:35.87 | 2025-01-26 |
| 26 | Evelyn Titus NECAN | NECAN | NE | 23:27.81 | 2026-06-20 |
| 27 | Lydia Roberts OKGRE | OKGRE | OK | 24:51.43 | 2025-01-10 |
| 28 | Jenna Woitalewicz MWBEA | MWBEA | MW | 25:49.19 | 2025-10-26 |
| 29 | Eleanora Murphy ADHAWK | ADHAWK | AD | 25:59.90 | 2025-07-22 |
| 30 | Lillian Beam OKSWI | OKSWI | OK | 26:56.08 | 2026-01-10 |