| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Mordaunt, Victoria (12)
|
MRYMID |
1:04.97 |
1:05.35 |
0.38 |
| 2 |
Samko, Clara M (12)
|
MRHS |
1:19.29 |
1:11.06 |
-8.23 |
| 3 |
Gonzalez, Emilianna (11)
|
MRAPEX |
1:12.13 |
1:11.56 |
-0.57 |
| 4 |
Lam, Kylie L (11)
|
MRNYCP |
1:17.27 |
1:17.44 |
0.17 |
| 5 |
Dojillo, Chloe (10)
|
MRUN |
1:23.96 |
1:17.89 |
-6.07 |
| 6 |
Graham, Agatha A (12)
|
MRRED |
1:25.30 |
1:20.98 |
-4.32 |
| 7 |
Reyes Aguirre, Juana (12)
|
MRAPEX |
1:21.71 |
1:22.45 |
0.74 |
| 8 |
Suzana, Josephine (9)
|
MRAPEX |
|
1:24.89 |
- |
| 9 |
Lally, Keely M (10)
|
MRHS |
1:30.53 |
1:26.35 |
-4.18 |
| 10 |
Garcia, Jaydi M (11)
|
MRKBM |
1:32.18 |
1:31.60 |
-0.58 |
| 11 |
Vidals, Giselle (12)
|
MRAPEX |
1:47.54 |
1:32.90 |
-14.64 |
| 12 |
Kizhnerman, Noa (12)
|
MRCENT |
|
1:34.01 |
- |
| 13 |
Linares, Lina M (10)
|
MRKBM |
1:38.98 |
1:35.67 |
-3.31 |
| 14 |
Flynn, Jillian N (11)
|
MRAPEX |
1:52.64 |
1:39.21 |
-13.43 |
| 15 |
Amankwa-Jones, Isabella B (11)
|
MRRED |
1:30.09 |
1:40.25 |
10.16 |
| 16 |
Sandoval, Joselyn (10)
|
MRRED |
1:50.09 |
1:47.28 |
-2.81 |
| 17 |
Hoy, Victoria L (11)
|
MRHS |
1:55.00 |
1:54.69 |
-0.31 |
|
Scoloveno, Giuliana (11)
|
MRCENT |
1:51.50 |
NS |
- |
|
Walker, Nina (9)
|
MRUN |
1:53.00 |
NS |
- |