| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Czeremcha, Erica (12)
|
MRTS |
56.43 |
56.99 |
0.56 |
| 2 |
Dimaculangan, Annabel (12)
|
MRTVSC |
56.40 |
57.28 |
0.88 |
| 3 |
Egbert, Alexis A (12)
|
MRLBA |
1:08.01 |
1:04.82 |
-3.19 |
| 4 |
Cao, Carina K (11)
|
MRTVSC |
1:14.25 |
1:11.84 |
-2.41 |
| 5 |
Tribble, Julianna R (11)
|
MRTVSC |
1:15.96 |
1:14.51 |
-1.45 |
| 6 |
Miller, Caroline A (11)
|
MRLBA |
1:20.21 |
1:14.85 |
-5.36 |
| 7 |
Policaro, Ava N (11)
|
MRLBA |
1:19.76 |
1:15.54 |
-4.22 |
| 8 |
Mallia, Sarah F (11)
|
MRLBA |
1:18.33 |
1:18.11 |
-0.22 |
| 9 |
O'Connell, Maggie M (12)
|
MRUN |
1:24.88 |
1:21.54 |
-3.34 |
| 10 |
Campbell, Taylor M (11)
|
MRLBA |
|
1:21.62 |
- |
| 11 |
Alfasi, Alexis L (12)
|
MRLBA |
1:21.70 |
1:21.88 |
0.18 |
| 12 |
Herrforth, Kathleen M (12)
|
MRUN |
1:47.39 |
1:38.37 |
-9.02 |
| 13 |
Herrforth, Kaitlyn R (12)
|
MRUN |
1:41.50 |
1:39.25 |
-2.25 |
| 14 |
Orr, Shannon M (11)
|
MRTVSC |
|
1:46.11 |
- |
| 15 |
Stewart, Jordan M (11)
|
MRLBA |
|
1:47.32 |
- |