| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Weil, Eleanor M (11)
|
MRBKR |
37.03 |
34.08 |
-2.95 |
| 2 |
Chuk, Leyla (12)
|
MRFREE |
35.65 |
35.16 |
-0.49 |
| 3 |
Fedonenko, Daria (12)
|
MRFREE |
36.26 |
37.56 |
1.30 |
| 4 |
Kokodyniak, Stella S (11)
|
MRBKR |
37.48 |
38.92 |
1.44 |
| 5 |
Korenblit, Emily R (11)
|
MRFREE |
37.27 |
38.95 |
1.68 |
| 5 |
Starodubtseva, Svetlana (11)
|
MRMPNY |
43.31 |
38.95 |
-4.36 |
| 7 |
Ould Abbou, Amira (11)
|
MRFREE |
39.20 |
39.59 |
0.39 |
| 8 |
Schulman, Maya L (11)
|
MRBKR |
40.49 |
41.62 |
1.13 |
| 9 |
DiRe, Carisa J (12)
|
MRFREE |
43.83 |
42.66 |
-1.17 |
| 10 |
Munoz, Clara D (11)
|
MRBKR |
43.48 |
44.48 |
1.00 |
| 11 |
Knudsen, Grace E (11)
|
MRFREE |
45.65 |
45.36 |
-0.29 |