| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Jones-Torres, Olivia-Ziva J (12)
|
MRPBAC |
37.01 |
35.99 |
-1.02 |
| 1 |
Koh, Alexa S (12)
|
MRPAC |
36.51 |
36.43 |
-0.08 |
| 2 |
la Fleur, Madeleine F (12)
|
MRBGNW |
36.90 |
36.88 |
-0.02 |
| 2 |
Rubin, Sally M (12)
|
MRCOND |
40.20 |
41.09 |
0.89 |
| 3 |
Lovig, Natalie J (12)
|
MRBGNW |
37.22 |
36.91 |
-0.31 |
| 4 |
Srinivasan, Radhika T (12)
|
MRPAC |
38.96 |
38.07 |
-0.89 |
| 5 |
White, Emily G (12)
|
MRNYSA |
38.62 |
38.43 |
-0.19 |
| 6 |
Aikman, Neve C (12)
|
MRYMID |
39.77 |
40.12 |
0.35 |
| 7 |
Santora, Sofia E (12)
|
MRMWDA |
39.89 |
40.40 |
0.51 |
| 8 |
Bubel, Nora E (12)
|
MRNDAC |
39.82 |
40.49 |
0.67 |
|
Sirkowa, Adelina C (12)
|
MRNYSA |
40.53 |
DQ |
- |
|
Oh, Madeline J (12)
|
MRBGNW |
38.09 |
NS |
- |