| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Olson, Mia V (9)
|
MREAST |
1:21.43 |
1:19.30 |
-2.13 |
| 2 |
Frey, Cecelia S (8)
|
MREAST |
1:24.23 |
1:22.73 |
-1.50 |
| 3 |
Garcia-Alonso, Alexia (9)
|
MREAST |
1:26.85 |
1:28.98 |
2.13 |
| 4 |
Wepman, Finley B (9)
|
MREAST |
1:30.24 |
1:29.51 |
-0.73 |
| 5 |
Kim, Cameron E (9)
|
MREAST |
1:37.82 |
1:33.70 |
-4.12 |
| 6 |
Fitzpatrick, Emma K (9)
|
MRUN |
1:33.78 |
1:34.10 |
0.32 |
| 7 |
Fisher, Ruby A (8)
|
MREAST |
1:52.60 |
1:39.41 |
-13.19 |
| 8 |
Matthew, Nile R (8)
|
MREAST |
1:38.52 |
1:39.53 |
1.01 |
| 9 |
Stone, Sophia K (9)
|
MREAST |
2:10.77 |
1:44.04 |
-26.73 |
| 10 |
Tamarapu, Ria (8)
|
MREAST |
1:45.64 |
1:46.26 |
0.62 |
| 11 |
Jean-Philippe, Sonali (9)
|
MREAST |
1:50.07 |
1:53.44 |
3.37 |
| 12 |
Harris, Giana M (9)
|
MREAST |
1:53.18 |
2:03.71 |
10.53 |