| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Thompson, Charley J (10)
|
MRFREE |
36.70 |
36.39 |
-0.31 |
| 2 |
Greenberg, Ashlee N (10)
|
MRFREE |
40.27 |
38.89 |
-1.38 |
| 3 |
Rondeau, Angele (10)
|
MRBKR |
45.49 |
39.45 |
-6.04 |
| 4 |
Vater, Annabelle A (9)
|
MRBKR |
38.39 |
39.70 |
1.31 |
| 4 |
Khamutaeva, Tuiana (10)
|
MRMPNY |
39.63 |
39.70 |
0.07 |
| 6 |
Fernandez, Francesca E (9)
|
MRSIAC |
42.79 |
42.71 |
-0.08 |
| 7 |
Eckhaus, Jacqueline M (9)
|
MRFREE |
46.44 |
43.41 |
-3.03 |
| 8 |
Reid, Laila A (9)
|
MRBKR |
48.26 |
45.62 |
-2.64 |
| 9 |
Walker, Lincoln M (9)
|
MRFREE |
45.41 |
47.14 |
1.73 |
| 10 |
Astrinsky, Netanela L (10)
|
MRBKR |
48.00 |
47.51 |
-0.49 |
| 11 |
Foti, Fiorina K (10)
|
MRFREE |
1:00.99 |
49.51 |
-11.48 |
| 12 |
Whelan, Nora M (9)
|
MRBKR |
55.00 |
53.56 |
-1.44 |
| 13 |
Johnston, Caitlin M (9)
|
MRBKR |
59.89 |
56.36 |
-3.53 |
| 14 |
Gross, Victoria R (10)
|
MRBKR |
57.87 |
56.47 |
-1.40 |