| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
St Rose-Finear, Sydney R (17)
|
NIVICT |
18:13.51 |
18:27.87 |
14.36 |
| 2 |
Pawli, Kya M (14)
|
NISTAR |
18:10.06 |
18:43.78 |
33.72 |
| 3 |
Ritz, Erin (15)
|
NIVICT |
18:21.34 |
18:45.36 |
24.02 |
| 4 |
Hawkins, Emma (13)
|
NIVICT |
18:37.25 |
19:10.73 |
33.48 |
| 5 |
Pakkal, Nil (13)
|
NIUN-D |
19:17.70 |
19:32.59 |
14.89 |
| 6 |
Studebaker, Gabrielle W (16)
|
NISTAR |
18:40.25 |
19:37.56 |
57.31 |
| 7 |
Chacon, Valentina (15)
|
NIUN-D |
19:52.41 |
19:50.59 |
-1.82 |
| 8 |
Regelsberger, Emily C (14)
|
NIVICT |
19:42.99 |
19:51.40 |
8.41 |
| 9 |
Senglaub, Katie (13)
|
NIVICT |
19:47.02 |
19:56.89 |
9.87 |
| 10 |
McDonnell, Lillian (16)
|
NISTAR |
19:12.59 |
20:11.32 |
58.73 |
| 11 |
Moore, Madison M (14)
|
NIVICT |
19:52.40 |
20:14.08 |
21.68 |
| 12 |
Senglaub, Emma (13)
|
NIVICT |
19:52.07 |
20:27.19 |
35.12 |
| 13 |
Gartner, Sarah N (15)
|
NIGCOM |
20:33.88 |
20:40.32 |
6.44 |
| 14 |
Kordal, Marissa L (18)
|
NIEAST |
|
20:54.57 |
- |
| 15 |
Pathammavong, Suriyathai A (12)
|
NIVICT |
|
21:49.90 |
- |
| 16 |
Heltz, Olivia G (13)
|
NISTAR |
|
22:24.41 |
- |
| 17 |
Tesluk, Helen E (13)
|
NISTAR |
|
22:39.83 |
- |
| 18 |
Pitillo, Natalie E (14)
|
NISTAR |
|
23:49.27 |
- |
| 19 |
Steffan, Katrena R (15)
|
NIHAMB |
|
23:58.79 |
- |
|
Costich, Charlotte G (13)
|
NICLSC |
|
NS |
- |