| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Yu, Alexis (10)
|
MRFREE |
35.92 |
35.19 |
-0.73 |
| 2 |
Ould Abbou, Amira (10)
|
MRFREE |
36.43 |
35.51 |
-0.92 |
| 3 |
Munoz, Clara D (10)
|
MRBKR |
|
35.79 |
- |
| 4 |
Hoy, Isabella L (10)
|
MRFREE |
37.40 |
36.80 |
-0.60 |
| 5 |
Kokodyniak, Stella S (10)
|
MRBKR |
35.81 |
36.98 |
1.17 |
| 6 |
Modeste, London I (10)
|
MRBKR |
38.43 |
38.22 |
-0.21 |
| 7 |
Greenberg, Ashlee N (9)
|
MRFREE |
39.08 |
38.55 |
-0.53 |
| 8 |
Nemirovsky, Polina M (9)
|
MRFREE |
40.04 |
40.12 |
0.08 |
| 9 |
Rondeau, Angele (9)
|
MRBKR |
40.82 |
40.78 |
-0.04 |
| 10 |
Astrinsky, Netanela L (9)
|
MRBKR |
42.23 |
42.17 |
-0.06 |
| 11 |
Gross, Victoria R (9)
|
MRBKR |
52.73 |
50.37 |
-2.36 |