| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Donikyan, Sofia M (11)
|
MRPATS |
37.97 |
36.98 |
-0.99 |
| 1 |
Joyce, Mary I (11)
|
MRSMC |
37.86 |
38.19 |
0.33 |
| 2 |
Coppola, Sophia M (11)
|
MRBGNW |
37.77 |
37.02 |
-0.75 |
| 2 |
Rapisarda, Claudia (11)
|
MREAST |
37.55 |
38.38 |
0.83 |
| 3 |
Calone, Emilia R (11)
|
MRNYSA |
37.31 |
38.47 |
1.16 |
| 3 |
Cefaloni, Gabriella J (11)
|
MRAGMV |
40.19 |
40.68 |
0.49 |
| 4 |
Kaga, Tiana S (11)
|
MREAST |
40.15 |
38.95 |
-1.20 |
| 4 |
Masters, Katherine L (11)
|
MREAST |
40.22 |
41.74 |
1.52 |
| 5 |
Cho, Katie (11)
|
MRCOND |
39.27 |
39.22 |
-0.05 |
| 6 |
Chen, Cindy W (11)
|
MRBGNW |
40.53 |
39.49 |
-1.04 |
| 7 |
Burger, Laura K (11)
|
MRNDAC |
39.83 |
39.66 |
-0.17 |
| 8 |
Murray, Chelsea E (11)
|
MRCOND |
39.91 |
39.84 |
-0.07 |
| 9 |
Tirch, Doriana R (11)
|
MRHVD |
40.32 |
40.17 |
-0.15 |
| 10 |
Prior, Kate E (11)
|
MRDVWM |
40.19 |
40.36 |
0.17 |