| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Dunford, Abby C (13)
|
LATAQ |
17:43.50 |
17:34.96 |
-8.54 |
| 2 |
Werth, Cecilia E (14)
|
LATAQ |
18:26.34 |
17:45.32 |
-41.02 |
| 3 |
Manning, Regan V (14)
|
LACRAW |
18:51.50 |
18:02.54 |
-48.96 |
| 4 |
Crespo, Riley K (14)
|
LAES |
18:52.57 |
18:35.51 |
-17.06 |
| 5 |
Klein, Marina L (14)
|
LACOSS |
19:32.20 |
19:13.86 |
-18.34 |
| 6 |
Alexander, Emma T (13)
|
LACOLA |
22:06.19 |
19:36.61 |
-149.58 |
| 7 |
Miller, Joanna M (13)
|
LACOLA |
22:06.19 |
19:47.25 |
-138.94 |
| 8 |
Jackson, Abigail E (14)
|
LACOSS |
20:34.46 |
19:54.68 |
-39.78 |
| 9 |
Broussard, Elizabeth G (14)
|
LASC |
20:16.08 |
19:55.10 |
-20.98 |
| 10 |
Johnson, Allyson A (14)
|
LAWAVE |
22:06.19 |
19:58.59 |
-127.60 |
| 11 |
Self, Kaitlyn R (13)
|
LACOLA |
21:25.03 |
20:02.48 |
-82.55 |
| 12 |
Leathem-Brazzini, Brianna (13)
|
LAWAVE |
20:46.60 |
20:15.27 |
-31.33 |
| 13 |
Martin, Colleen I (14)
|
LAHSC |
20:49.43 |
20:27.12 |
-22.31 |
| 14 |
Spera, Abigail E (14)
|
LAWAVE |
21:39.04 |
20:57.18 |
-41.86 |
| 15 |
Moreau, Keira M (13)
|
LACOLA |
22:06.19 |
22:06.79 |
0.60 |
| 16 |
Calvitt, Cheyenne A (13)
|
LACOLA |
22:06.19 |
22:27.78 |
21.59 |