| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Bacher, Taylor M (13)
|
OHRAYS |
18:58.45 |
18:10.01 |
-48.44 |
| 2 |
Knoblauch, Addison L (14)
|
INSCA |
18:28.61 |
18:21.23 |
-7.38 |
| 3 |
Schumacher, Emma D (12)
|
INFAST |
19:20.12 |
18:33.69 |
-46.43 |
| 4 |
Bereveskos, Lurilla E (16)
|
INWTSC |
17:56.15 |
18:37.76 |
41.61 |
| 5 |
Heine, Lillian M (13)
|
INSCA |
19:08.40 |
19:13.44 |
5.04 |
| 6 |
Schoenlein, Megan E (14)
|
OHRAYS |
19:43.54 |
19:15.48 |
-28.06 |
| 7 |
Leer, Amira R (11)
|
INPA |
20:42.61 |
19:34.49 |
-68.12 |
| 8 |
Madara, Ayla L (10)
|
INPA |
19:55.01 |
19:53.89 |
-1.12 |
| 9 |
Leer, Talia M (13)
|
INPA |
19:02.35 |
20:06.72 |
64.37 |
| 10 |
Cook, Kellyn D (12)
|
INSCA |
|
20:32.58 |
- |
| 11 |
Risley, Alicia A (13)
|
INSCA |
22:05.63 |
22:33.83 |
28.20 |