| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Puthoff, Madison A (13)
|
AMSTEE |
20:00.02 |
18:51.70 |
-68.32 |
| 2 |
Ulintz, Anastasia M (14)
|
AMSTEE |
18:08.56 |
19:01.40 |
52.84 |
| 3 |
Huang, Sarah A (13)
|
AMKW |
19:02.90 |
19:04.45 |
1.55 |
| 4 |
Schomaker, Allison H (14)
|
AMPRA |
20:21.31 |
19:31.90 |
-49.41 |
| 5 |
Shipe, Aynsley F (13)
|
AMRXA |
19:24.46 |
19:44.17 |
19.71 |
| 6 |
McCowin, Hazel L (13)
|
AMSTEE |
20:48.48 |
20:00.29 |
-48.19 |
| 7 |
Bissell, Amelia R (14)
|
AMRGSY |
19:32.04 |
20:00.51 |
28.47 |
| 8 |
Hoffman, Hallie L (14)
|
AMRGSY |
20:51.88 |
20:59.71 |
7.83 |
| 9 |
Beck, Lydia G (14)
|
AMRGSY |
20:22.48 |
21:35.57 |
73.09 |
| 10 |
Muralidharan, Anya S (13)
|
AMSTEE |
22:12.17 |
21:50.30 |
-21.87 |