| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Tantsyura, Eva D (12)
|
MRUN-S |
1:16.43 |
1:08.18 |
-8.25 |
| 2 |
Chavez, Kaetlyn K (11)
|
MRAPEX |
1:17.27 |
1:08.52 |
-8.75 |
| 3 |
Kelly, Alanna M (12)
|
MRSS |
1:10.82 |
1:08.63 |
-2.19 |
| 4 |
Rojas-Tineo, Mairene R (12)
|
MRAPEX |
1:12.14 |
1:09.53 |
-2.61 |
| 5 |
Trieff, Lily S (12)
|
MRSS |
1:16.67 |
1:11.28 |
-5.39 |
| 6 |
Barreto, Zoe A (11)
|
NJDESC |
1:14.70 |
1:11.78 |
-2.92 |
| 7 |
Ge, Xinrui (11)
|
MRAPEX |
1:18.29 |
1:13.56 |
-4.73 |
| 8 |
Punnoose, Ann J (11)
|
MRFAST |
1:16.78 |
1:13.68 |
-3.10 |
| 9 |
Silver, Christina M (12)
|
MRSS |
1:24.89 |
1:15.72 |
-9.17 |
| 10 |
O'Flaherty, Roisin (11)
|
MRSS |
1:34.77 |
1:16.35 |
-18.42 |
| 11 |
Phillips, Maya C (12)
|
MRUN-S |
1:28.11 |
1:17.57 |
-10.54 |
| 12 |
Wong, Kristen A (11)
|
MRAPEX |
1:20.20 |
1:17.76 |
-2.44 |
| 13 |
Barabasi, Bianca R (11)
|
MRFAST |
1:22.18 |
1:18.12 |
-4.06 |
| 14 |
Wong, Kelly M (11)
|
MRAPEX |
1:21.22 |
1:19.32 |
-1.90 |
| 15 |
Javier, Chrisabella K (12)
|
MRAPEX |
1:14.25 |
1:20.28 |
6.03 |