11 swimmers
| # | Swimmer | Team | LSC | Time | Date |
|---|---|---|---|---|---|
| 1 | Isabelle Sexson SAC | SAC | AZ | 6:16.40 | 2015-01-11 |
| 2 | Sejdina Haseljic AZSWI | AZSWI | AZ | 6:38.69 | 2010-01-30 |
| 3 | Nora Gorski MIHUR | MIHUR | MI | 6:43.80 | 2025-05-04 |
| 4 | Alana Tipton OKSWI | OKSWI | OK | 6:45.10 | 2025-01-10 |
| 5 | Kosha Rabinovich GACC | GACC | OR | 6:47.03 | 2025-12-20 |
| 6 | Alden Brown AZPHO | AZPHO | AZ | 6:48.79 | 2011-01-29 |
| 7 | Cloe McDowell MIBYR | MIBYR | MI | 6:56.29 | 2025-05-10 |
| 8 | Mandy Rothe AZPHO | AZPHO | AZ | 7:00.48 | 2014-03-22 |
| 9 | Ariadne Holmbeck ORTOR | ORTOR | OR | 7:33.15 | 2026-04-26 |
| 10 | Paisley Teodoro AZANT | AZANT | AZ | 7:42.24 | 2023-10-28 |
| 11 | Louise Simpson NECAN | NECAN | NE | 8:17.13 | 2026-06-20 |