| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Washington, Amira (11)
|
MRTRI |
1:00.98 |
1:01.36 |
0.38 |
| 2 |
Palei, Nicole C (11)
|
MRTRI |
1:04.47 |
1:05.01 |
0.54 |
| 3 |
Abbas, Menna (12)
|
MRTRI |
1:03.95 |
1:05.60 |
1.65 |
| 4 |
Calone, Emilia R (11)
|
MRNYSA |
1:06.66 |
1:06.38 |
-0.28 |
| 5 |
Zecchin, Kiersten M (12)
|
MRTRS |
1:06.65 |
1:07.09 |
0.44 |
| 6 |
Tirri, Emma M (12)
|
MRTRS |
1:09.72 |
1:09.57 |
-0.15 |
| 7 |
Prior, Kate E (11)
|
MRDVWM |
1:07.83 |
1:10.08 |
2.25 |
| 8 |
Zakharova, Michelle (12)
|
MRDVWM |
1:12.07 |
1:10.75 |
-1.32 |
| 9 |
Quispe-Justino, Sofia A (11)
|
MRTRI |
1:14.53 |
1:12.05 |
-2.48 |
| 10 |
Lazebnik, Gianetta (12)
|
MRTRI |
1:14.80 |
1:12.77 |
-2.03 |
| 11 |
McCarron, Olivia S (12)
|
MRTRS |
1:12.63 |
1:13.32 |
0.69 |
| 12 |
Dalton, Leah (11)
|
MRTRI |
1:17.93 |
1:18.81 |
0.88 |
| 13 |
Gannon, Isabella G (12)
|
MRTRS |
1:21.15 |
1:19.33 |
-1.82 |
| 14 |
Volovnyk, Ksenia (11)
|
MRTRI |
1:30.34 |
1:20.35 |
-9.99 |
| 15 |
Petersen, Ella R (11)
|
MRNYSA |
1:34.05 |
1:22.68 |
-11.37 |
| 16 |
Protasiewicz, AnnaLee B (11)
|
MRTRS |
1:33.50 |
1:40.17 |
6.67 |
| 17 |
Barron, Amelie (11)
|
MRTRS |
1:56.94 |
1:46.49 |
-10.45 |