| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Chang, Barbara A (12)
|
MREAST |
1:33.15 |
1:28.19 |
-4.96 |
| 2 |
McCauley, Siobhan E (12)
|
CTGRYM |
1:31.34 |
1:30.60 |
-0.74 |
| 3 |
Krogsgaard, Astrid G (12)
|
MREAST |
1:32.96 |
1:31.59 |
-1.37 |
| 4 |
Garcia-Alonso, Alexia (11)
|
CTGRYM |
1:45.85 |
1:33.87 |
-11.98 |
| 5 |
Black, Beatrice D (11)
|
MRBAD |
1:35.42 |
1:34.17 |
-1.25 |
| 6 |
Kim, Cameron E (11)
|
MREAST |
1:35.49 |
1:35.74 |
0.25 |
| 7 |
Bloom, Zadie R (12)
|
MREAST |
1:43.39 |
1:36.63 |
-6.76 |
| 8 |
Honey, Olivia M (11)
|
CTGRYM |
1:38.37 |
1:39.66 |
1.29 |
| 9 |
McClinchy, Stella B (11)
|
MREAST |
1:49.72 |
1:39.99 |
-9.73 |
| 10 |
Di Domenico, Ellie B (11)
|
MREAST |
1:43.00 |
1:47.32 |
4.32 |
| 11 |
Hong, Lauren (12)
|
CTGRYM |
1:41.56 |
1:49.40 |
7.84 |
| 12 |
Harris, Giana M (11)
|
MREAST |
2:00.71 |
2:02.10 |
1.39 |
|
Fleming, Beatrix R (12)
|
MREAST |
|
DQ |
- |
|
Mandel, Becky L (11)
|
MREAST |
|
DQ |
- |