| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Armstrong, Kiersten R (14)
|
VANOVA |
18:58.68 |
19:00.83 |
2.15 |
| 2 |
Nicholson, Lucille I (15)
|
VACA-Y |
18:45.52 |
19:09.99 |
24.47 |
| 3 |
Miller, Evie M (13)
|
VARAYS |
18:42.48 |
19:18.62 |
36.14 |
| 4 |
Strudgeon, Morgan N (17)
|
VAUN |
18:40.32 |
19:39.19 |
58.87 |
| 5 |
Callihan, Catherine B (14)
|
VANOVA |
20:39.05 |
19:41.53 |
-57.52 |
| 6 |
Wells, Sara T (14)
|
VACA-Y |
19:37.70 |
19:51.03 |
13.33 |
| 7 |
Duplissey, Cere L (17)
|
VAHNVR |
18:48.82 |
19:51.58 |
62.76 |
| 8 |
Eakes, Savannah E (16)
|
VANOVA |
18:41.91 |
20:00.94 |
79.03 |
| 9 |
Tiberio, Kyleigh N (16)
|
VATSU |
21:02.00 |
21:52.12 |
50.12 |
| 10 |
Crampton, Isabelle E (18)
|
VATSU |
20:50.91 |
22:04.55 |
73.64 |
| 11 |
Sutton, Kelsey L (13)
|
VAHNVR |
|
26:11.21 |
- |