| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Suzana, Arlene (15)
|
MRAPEX |
1:22.56 |
1:20.04 |
-2.52 |
| 1 |
Leal, Nancy (15)
|
MRRED |
1:23.45 |
1:21.98 |
-1.47 |
| 2 |
Brown, Ella (15)
|
MRMAKO |
1:21.50 |
1:22.19 |
0.69 |
| 3 |
Segone, Irene (17)
|
MRYFD |
1:25.30 |
1:22.92 |
-2.38 |
| 4 |
Valadez, Ofelia M (15)
|
MRAPEX |
1:25.12 |
1:24.32 |
-0.80 |
| 5 |
Reed, Nia N (15)
|
MRKBM |
1:25.64 |
1:25.66 |
0.02 |
| 6 |
Goldberg, Julia M (15)
|
MRYFD |
1:27.64 |
1:27.60 |
-0.04 |
| 7 |
Ogen, Nicole (15)
|
MRYFD |
1:32.03 |
1:30.17 |
-1.86 |
| 8 |
Contreras, Genesis C (15)
|
MRYFD |
1:29.96 |
1:30.90 |
0.94 |
| 9 |
Rodriguez, Andrea I (15)
|
MRRED |
1:31.11 |
1:31.98 |
0.87 |
| 10 |
Javier, Chrisabella K (15)
|
MRAPEX |
1:32.18 |
1:33.47 |
1.29 |
| 11 |
Maslin, Amy (15)
|
MRMAKO |
1:36.30 |
1:34.20 |
-2.10 |
| 12 |
Jones, Katherine E (15)
|
MRYFD |
1:42.10 |
1:35.11 |
-6.99 |
| 13 |
Bapis, Michaela M (16)
|
MRMAKO |
1:31.43 |
1:38.11 |
6.68 |
| 14 |
Portoviejo, Neyda X (15)
|
MRRED |
1:40.09 |
1:42.00 |
1.91 |
| 15 |
Economakos, Stavroula (16)
|
MRHS |
1:44.44 |
1:49.63 |
5.19 |
|
Royal-Smith, Jaisha (15)
|
MRKBM |
1:38.50 |
DQ |
- |