| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Calone, Emilia R (13)
|
MRNYSA |
1:14.89 |
1:15.61 |
0.72 |
| 1 |
Donikyan, Sofia M (13)
|
MRPATS |
1:19.32 |
1:23.57 |
4.25 |
| 2 |
Coppola, Sophia M (13)
|
MRBGNW |
1:18.30 |
1:16.07 |
-2.23 |
| 2 |
Schlereth, Madeline M (13)
|
MRCOND |
1:22.79 |
1:23.70 |
0.91 |
| 3 |
Coulthard, Tamsin A (13)
|
MRYMID |
1:16.80 |
1:16.19 |
-0.61 |
| 3 |
Finerty, Ella K (13)
|
MRSMC |
1:22.64 |
1:23.74 |
1.10 |
| 4 |
Catanzaro, Maizie J (13)
|
MRPAC |
1:19.70 |
1:16.67 |
-3.03 |
| 4 |
Ramoino, Sophia P (13)
|
MRRA |
1:22.71 |
1:24.27 |
1.56 |
| 5 |
Skerritt, Katherine C (13)
|
MRHVD |
1:21.12 |
1:17.50 |
-3.62 |
| 5 |
Gash, Alexandra M (13)
|
MRPATS |
1:21.58 |
1:24.65 |
3.07 |
| 6 |
Martinez, Renata A (13)
|
MRPATS |
1:19.35 |
1:18.71 |
-0.64 |
| 7 |
Piscitella, Vivian I (13)
|
MRNBS |
1:19.56 |
1:20.00 |
0.44 |
| 8 |
Pazona, Olivia (13)
|
MRYMID |
1:21.09 |
1:20.01 |
-1.08 |
| 9 |
Johnsen, Sasha T (13)
|
MRSMC |
1:19.95 |
1:20.56 |
0.61 |
| 10 |
O'Donnell, Katherine A (13)
|
MRBGNW |
1:22.64 |
1:20.66 |
-1.98 |
| 11 |
Cattanach, Clara (13)
|
MRBGNW |
1:20.99 |
1:21.16 |
0.17 |
| 12 |
Cho, Katie (13)
|
MRCOND |
1:20.28 |
1:22.00 |
1.72 |
| 13 |
McAuley, Nadia A (13)
|
MRAGMV |
1:20.53 |
1:22.09 |
1.56 |
| 14 |
Shingler, Clara G (13)
|
MRSMC |
1:23.28 |
1:23.07 |
-0.21 |
|
Lopez Reyes Retana, MariaJos (13)
|
MRYMID |
1:20.41 |
DQ |
- |