| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Derivaux, Lillian E (13)
|
MAJW |
18:19.67 |
17:53.90 |
-25.77 |
| 2 |
Palmer, Lydia M (14)
|
MAJW |
17:52.29 |
18:23.84 |
31.55 |
| 3 |
Esterly, Margaret H (13)
|
AZSAC |
20:19.53 |
18:25.25 |
-114.28 |
| 4 |
Fox, Megan E (14)
|
MASEA |
18:04.49 |
18:31.41 |
26.92 |
| 5 |
Mullin, Sydney A (14)
|
MAJW |
18:31.12 |
18:38.75 |
7.63 |
| 6 |
Gagnon, Katarina A (13)
|
MAJW |
18:22.81 |
18:47.49 |
24.68 |
| 7 |
Smith, Olivia C (14)
|
MAGPAC |
19:38.04 |
19:08.40 |
-29.64 |
| 8 |
Lett, Lindsey E (13)
|
MAGPAC |
19:59.16 |
19:46.07 |
-13.09 |
| 9 |
Suko, Anya F (14)
|
MACBST |
21:17.87 |
20:32.28 |
-45.59 |
| 10 |
Pestrichelli, Kathleen D (12)
|
NJSVY |
20:25.11 |
20:43.40 |
18.29 |
| 11 |
Cappola, Christina M (14)
|
MASSC |
22:14.62 |
21:02.30 |
-72.32 |
| 12 |
Boles, Karly J (11)
|
MAGAAC |
21:52.59 |
21:43.03 |
-9.56 |
| 13 |
Wintermute, Tanya R (13)
|
NJSVY |
21:32.23 |
21:52.40 |
20.17 |
| 14 |
Danastasio, Giovanna M (13)
|
MAWAVE |
21:19.48 |
21:56.07 |
36.59 |