| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Vlaic, Annemarie (12)
|
ORLOSC |
1:04.09 |
1:02.45 |
-1.64 |
| 2 |
Woare, Cecilia J (12)
|
PNSMAC |
1:04.29 |
1:03.80 |
-0.49 |
| 3 |
Huettemeyer, Helena R (12)
|
ORLOSC |
1:09.81 |
1:07.35 |
-2.46 |
| 4 |
Koch, Cassandra L (11)
|
ORLOSC |
1:09.24 |
1:07.96 |
-1.28 |
| 5 |
Nichitean, Carina I (11)
|
ORBLAC |
1:10.83 |
1:08.48 |
-2.35 |
| 6 |
McKeen, Malia L (11)
|
ORBLAC |
1:08.55 |
1:08.78 |
0.23 |
| 7 |
Warner, Elena M (12)
|
PNSMAC |
1:10.09 |
1:09.23 |
-0.86 |
| 8 |
Vu, Kaitlyn H (12)
|
PNSMAC |
1:13.78 |
1:09.52 |
-4.26 |
| 9 |
Yang, Stella K (11)
|
PCDACA |
1:10.45 |
1:10.25 |
-0.20 |
| 10 |
Chew, Alyson S (12)
|
PNSMAC |
1:10.50 |
1:10.66 |
0.16 |
| 11 |
Charton, Thalea (12)
|
PCDACA |
1:10.02 |
1:11.32 |
1.30 |
| 12 |
Levin, Liliana M (11)
|
PCDACA |
1:11.56 |
1:11.47 |
-0.09 |
| 13 |
Uchishiba-Hall, Emelia T (11)
|
ORLOSC |
1:13.23 |
1:12.09 |
-1.14 |
| 14 |
Park, Min Suh (11)
|
ORBLAC |
1:12.95 |
1:13.53 |
0.58 |
| 15 |
Atkins, Peyton I (12)
|
ORLOSC |
1:10.74 |
1:14.50 |
3.76 |
| 16 |
Atay, Ayah I (11)
|
ORBLAC |
1:14.67 |
1:14.96 |
0.29 |
| 17 |
Pham, Lan-Anh (11)
|
PCDACA |
1:15.64 |
1:15.41 |
-0.23 |
| 18 |
Wagner, Sonika (12)
|
PCDACA |
1:15.37 |
1:16.08 |
0.71 |