| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Khamutaeva, Tuiana (10)
|
MRMPNY |
41.94 |
43.20 |
1.26 |
| 2 |
Greenberg, Ashlee N (10)
|
MRFREE |
46.64 |
45.32 |
-1.32 |
| 3 |
Astrinsky, Netanela L (10)
|
MRBKR |
47.04 |
46.45 |
-0.59 |
| 4 |
Rondeau, Angele (10)
|
MRBKR |
50.83 |
47.22 |
-3.61 |
| 5 |
Vater, Annabelle A (9)
|
MRBKR |
48.94 |
48.59 |
-0.35 |
| 6 |
Walker, Lincoln M (9)
|
MRFREE |
50.63 |
50.30 |
-0.33 |
| 7 |
Foti, Fiorina K (10)
|
MRFREE |
49.09 |
50.40 |
1.31 |
| 8 |
Fernandez, Francesca E (9)
|
MRSIAC |
49.74 |
50.59 |
0.85 |
| 9 |
Eckhaus, Jacqueline M (9)
|
MRFREE |
56.11 |
51.62 |
-4.49 |
| 10 |
Gross, Victoria R (10)
|
MRBKR |
53.85 |
53.48 |
-0.37 |
| 11 |
Whelan, Nora M (9)
|
MRBKR |
1:05.04 |
59.38 |
-5.66 |
| 12 |
Johnston, Caitlin M (9)
|
MRBKR |
1:02.15 |
1:00.91 |
-1.24 |
| 13 |
Reid, Laila A (9)
|
MRBKR |
59.98 |
1:01.42 |
1.44 |