| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Newton, Regan E (18)
|
GUPACK |
17:48.96 |
18:34.26 |
45.30 |
| 2 |
Matson, Emma G (18)
|
GUPACK |
17:48.79 |
18:52.08 |
63.29 |
| 3 |
Gottfried, Charlotte A (15)
|
GUPACK |
18:42.04 |
18:55.31 |
13.27 |
| 4 |
Neciosup, Alexandra (17)
|
GUPACK |
18:30.12 |
19:00.10 |
29.98 |
| 5 |
Smith, Megan G (15)
|
GUPACK |
18:16.71 |
19:12.17 |
55.46 |
| 6 |
Braden, Paulina N (16)
|
GUPACK |
20:10.53 |
19:52.66 |
-17.87 |
| 7 |
Revelas, Lily T (16)
|
GUPACK |
18:50.79 |
19:57.23 |
66.44 |
| 8 |
Molinaro, Mikaela G (15)
|
GUPACK |
19:35.06 |
20:16.35 |
41.29 |
| 9 |
Carter, Lunden M (15)
|
GUPACK |
20:32.79 |
20:19.11 |
-13.68 |
| 10 |
Wasik, Morgan L (16)
|
GUUN-P |
18:44.77 |
20:24.96 |
100.19 |
| 11 |
Martinez, Savannah B (16)
|
GUPACK |
20:18.89 |
20:56.40 |
37.51 |
| 12 |
Tebo, Natalie N (17)
|
GUPACK |
22:20.10 |
21:49.48 |
-30.62 |