| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Chang, Lynn S (11)
|
NTMTRO |
|
1:14.62 |
- |
| 2 |
Duarte, Anna L (12)
|
STGOLD |
1:16.59 |
1:17.35 |
0.76 |
| 3 |
Errera, Lola S (12)
|
NTDM |
1:18.67 |
1:22.46 |
3.79 |
| 4 |
Gotham, Ella M (11)
|
NTUNMT |
1:23.36 |
1:24.37 |
1.01 |
| 5 |
Huenefeld, Sadie J (11)
|
LABAC |
1:35.32 |
1:26.02 |
-9.30 |
| 6 |
Lloyd, Kalynn N (12)
|
NTTRAC |
1:30.02 |
1:28.50 |
-1.52 |
| 7 |
McDonald, Isabella V (12)
|
ARLRAD |
1:30.10 |
1:29.00 |
-1.10 |
| 8 |
Sierra, Sofia T (11)
|
STGOLD |
1:29.05 |
1:29.90 |
0.85 |
| 9 |
Sheppard, Catherine N (12)
|
MSMMST |
1:31.09 |
1:30.97 |
-0.12 |
| 10 |
Vo, Jolie M (11)
|
LARRAC |
1:52.45 |
1:31.72 |
-20.73 |
| 11 |
Dart, Ellen A (12)
|
LACOSS |
1:37.03 |
1:34.30 |
-2.73 |
| 12 |
Pizarro, Elena M (12)
|
LARRAC |
|
1:37.05 |
- |
| 13 |
Rippel, Catherine C (11)
|
NTDM |
1:45.62 |
1:37.36 |
-8.26 |
| 14 |
Heflin, Sara G (11)
|
LACOSS |
|
1:39.71 |
- |
| 15 |
Lopez, Jocelyne (11)
|
GUAMBU |
|
1:39.87 |
- |
| 16 |
Falgout, Allie R (11)
|
LACOLA |
1:54.21 |
1:41.55 |
-12.66 |
| 17 |
Battles, Amelia J (11)
|
GUAMBU |
2:08.42 |
1:50.64 |
-17.78 |
| 18 |
Hanson, Krislynn B (11)
|
LACOSS |
2:19.24 |
2:09.32 |
-9.92 |
|
Istre, Anna K (11)
|
LASPAR |
|
NS |
- |