| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
LU, Chelsea E (14)
|
NJBAC |
43.46 |
39.60 |
-3.86 |
| 2 |
Rock, Emma (13)
|
NJJFAC |
40.00 |
39.63 |
-0.37 |
| 3 |
Pedre, Jessica J (14)
|
NJOCY |
40.01 |
42.44 |
2.43 |
| 4 |
Kolmodin, Caroline E (13)
|
NJBAC |
46.39 |
45.45 |
-0.94 |
| 5 |
Lyou, Sarah (14)
|
NJSSCT |
50.75 |
45.73 |
-5.02 |
| 6 |
Singh, Sargi (13)
|
NJRY |
42.99 |
46.15 |
3.16 |
| 7 |
Kim, Julia (13)
|
NJRY |
47.25 |
46.54 |
-0.71 |
| 8 |
Gomez, Olivia S (13)
|
NJRY |
44.78 |
47.77 |
2.99 |
| 9 |
Palpallatoc, Samantha J (14)
|
NJRY |
46.92 |
47.97 |
1.05 |
| 10 |
Mahadev, Megha (13)
|
NJJFAC |
48.12 |
48.16 |
0.04 |
| 11 |
Suarez, Sophia (13)
|
NJRY |
48.92 |
48.93 |
0.01 |
| 12 |
Hekemian, Emma J (13)
|
NJRY |
50.02 |
51.84 |
1.82 |
| 13 |
Kaminski, Zoe G (13)
|
NJJFAC |
49.85 |
51.95 |
2.10 |
| 14 |
Daughtrey, Clare I (14)
|
NJJFAC |
50.89 |
52.19 |
1.30 |
|
St. Pierre, Marley E (13)
|
NJRY |
44.50 |
NS |
- |