| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Cattanach, Clara (14)
|
MRBGNW |
1:14.24 |
1:13.91 |
-0.33 |
| 2 |
Calone, Emilia R (14)
|
MRNYS |
1:15.11 |
1:14.57 |
-0.54 |
| 3 |
Schlereth, Madeline M (14)
|
MRCOND |
1:14.63 |
1:15.36 |
0.73 |
| 4 |
Lopez Reyes Retana, Maria (14)
|
MRYMID |
1:15.70 |
1:16.23 |
0.53 |
| 5 |
Donikyan, Sofia M (14)
|
MRPATS |
1:17.18 |
1:17.05 |
-0.13 |
| 6 |
Skerritt, Katherine C (14)
|
MRHVD |
1:16.78 |
1:17.61 |
0.83 |
| 7 |
Piscitella, Vivian I (14)
|
MRNYS |
1:16.56 |
1:18.17 |
1.61 |
| 8 |
Martinez, Renata A (14)
|
MRPATS |
1:16.03 |
1:19.06 |
3.03 |
| 9 |
McAuley, Nadia A (14)
|
MRNYS |
1:20.62 |
1:20.00 |
-0.62 |
| 10 |
Pazona, Olivia M (14)
|
MRYMID |
1:17.67 |
1:20.57 |
2.90 |
| 11 |
Wang, Melissa R (14)
|
MREAST |
1:18.35 |
1:21.71 |
3.36 |
| 12 |
Cronin, Ava K (14)
|
MRBGNW |
1:22.71 |
1:22.01 |
-0.70 |
| 13 |
Cornine, MaryCate A (14)
|
MRYBAR |
1:21.77 |
1:22.38 |
0.61 |