| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Taylor, Alexandra K (12)
|
LARRAC |
|
1:13.78 |
- |
| 2 |
Rossowski, Louisa K (12)
|
LASPAR |
1:16.45 |
1:17.13 |
0.68 |
| 3 |
Moreau, Maggie R (12)
|
LACOLA |
|
1:17.98 |
- |
| 4 |
Dalke, Samantha E (12)
|
LASC |
1:17.58 |
1:19.99 |
2.41 |
| 5 |
Pugh, Lila R (11)
|
LASC |
1:27.90 |
1:21.93 |
-5.97 |
| 6 |
Mouton, Sophie G (12)
|
LASC |
1:23.76 |
1:23.52 |
-0.24 |
| 7 |
Adams, Chloe E (12)
|
LASC |
1:52.88 |
1:24.16 |
-28.72 |
| 8 |
Moreau, Meaghan L (12)
|
LABAC |
1:25.12 |
1:24.98 |
-0.14 |
| 9 |
Broussard, Victoria M (11)
|
LASC |
1:37.61 |
1:36.00 |
-1.61 |
| 10 |
Armentor, Aubreigh M (11)
|
LACOLA |
1:53.48 |
1:43.15 |
-10.33 |