| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Kowal, Molly A (16)
|
MAJW |
16:52.77 |
17:27.95 |
35.18 |
| 2 |
Kowal, Grace E (16)
|
MAJW |
16:59.15 |
17:59.24 |
60.09 |
| 3 |
Fong, Andrea L (15)
|
MAJW |
17:45.84 |
18:37.57 |
51.73 |
| 4 |
Wakeley, Laura C (14)
|
MAGPAC |
18:22.24 |
18:38.27 |
16.03 |
| 5 |
O'Connor, Mackenzie S (14)
|
MASAKA |
18:12.83 |
18:40.98 |
28.15 |
| 6 |
Reistle, Emma J (14)
|
MAGPAC |
17:31.67 |
18:45.26 |
73.59 |
| 7 |
Washart, Jordan L (14)
|
MAGPAC |
18:55.58 |
18:48.92 |
-6.66 |
| 8 |
McGough, Sarah G (16)
|
MAJW |
17:51.37 |
18:51.15 |
59.78 |
| 9 |
Black, Lily F (15)
|
MAJW |
18:40.78 |
19:06.37 |
25.59 |
| 10 |
Ropka, Mackenzie T (17)
|
MAGPAC |
18:13.56 |
19:06.79 |
53.23 |
| 11 |
Lund, Emily G (16)
|
MAJW |
18:57.44 |
19:10.13 |
12.69 |
| 12 |
Freeland, Madison R (14)
|
MASAKA |
18:16.95 |
19:11.21 |
54.26 |
| 13 |
Green, Rebecca A (15)
|
MABRY |
20:41.93 |
19:33.72 |
-68.21 |
| 14 |
Weatherby, Kaitlyn R (16)
|
MAGPAC |
20:44.92 |
19:37.73 |
-67.19 |
| 15 |
Belecanech, Lauren M (16)
|
MAJW |
18:41.87 |
19:53.11 |
71.24 |
| 16 |
Arnold, Melanie E (17)
|
MAJW |
18:38.83 |
19:53.22 |
74.39 |
| 17 |
Davis, Molly A (14)
|
MAJW |
20:22.23 |
20:14.05 |
-8.18 |
| 18 |
Carlozzi, Josephine M (16)
|
MABRY |
22:01.27 |
21:42.36 |
-18.91 |