| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Worrall, Alexis R (15)
|
NIFAST |
1:01.71 |
1:03.02 |
1.31 |
| 2 |
Guilfoil, Ella K (14)
|
NIFAST |
1:01.62 |
1:04.61 |
2.99 |
| 3 |
Markham, Rory P (13)
|
NIFAST |
1:06.82 |
1:06.88 |
0.06 |
| 4 |
Gordon, Jessica E (17)
|
NIPACK |
1:06.50 |
1:07.69 |
1.19 |
| 5 |
Smillie, Eleanor B (14)
|
NIPACK |
1:06.62 |
1:08.81 |
2.19 |
| 6 |
Cooper, Sarah C (15)
|
NIPACK |
|
1:10.68 |
- |
| 7 |
McDermott, Cleo K (14)
|
NISDSC |
1:18.79 |
1:15.17 |
-3.62 |
| 8 |
Visconte, Alexandria L (14)
|
NISDSC |
1:16.43 |
1:16.09 |
-0.34 |
| 9 |
Radell, Lauren M (14)
|
NIFAST |
1:20.86 |
1:16.63 |
-4.23 |
| 10 |
Huerta-Andrade, Isabella (12)
|
NIPACK |
1:18.52 |
1:18.38 |
-0.14 |
| 11 |
Maas, Kaylee A (10)
|
NIIRON |
1:25.94 |
1:23.96 |
-1.98 |
| 12 |
German, Ally M (14)
|
NIFAST |
1:29.88 |
1:31.67 |
1.79 |
| 13 |
Zhang, Maureen X (11)
|
NIPACK |
1:36.13 |
1:35.03 |
-1.10 |
| 14 |
Terio, Chloe M (9)
|
NIPACK |
|
1:38.23 |
- |
| 15 |
Grantham, Alliana R (9)
|
NIFAST |
1:51.67 |
1:54.66 |
2.99 |
|
Nichols, Maria Ada G (8)
|
NIPACK |
|
DQ |
- |
|
Smith, Eva C (13)
|
NIUN |
1:11.27 |
DQ |
- |
|
Daley, Regan D (15)
|
NIIRON |
1:18.23 |
NS |
- |
|
Wagner, Keaghan J (11)
|
NISDSC |
1:34.59 |
NS |
- |