| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Vasquez, Elizabeth (9)
|
NJEAG |
40.56 |
38.81 |
-1.75 |
| 2 |
Vill, Christine E (10)
|
NJFOBY |
42.13 |
42.16 |
0.03 |
| 3 |
Saravanakumar, Niyati (10)
|
NJXCEL |
41.75 |
42.63 |
0.88 |
| 4 |
Kim, Beatrix (9)
|
NJXCEL |
46.38 |
44.51 |
-1.87 |
| 5 |
Kepka, Cleo (10)
|
NJSKYY |
48.55 |
45.59 |
-2.96 |
| 6 |
Wong, Erin O (10)
|
NJBB |
45.69 |
45.70 |
0.01 |
| 7 |
Ge, Carol (10)
|
NJXCEL |
46.42 |
47.37 |
0.95 |
| 8 |
Nechay, Elena S (10)
|
NJSCAR |
45.07 |
48.08 |
3.01 |
| 9 |
Layo, Nicole Heart P (10)
|
NJSCAR |
45.98 |
48.61 |
2.63 |
| 10 |
Hirsch, Molly R (9)
|
NJBB |
50.08 |
48.88 |
-1.20 |
| 11 |
Jing, Erika (9)
|
NJXCEL |
55.52 |
48.94 |
-6.58 |
| 12 |
Zhu, Helen (10)
|
NJXCEL |
47.99 |
49.08 |
1.09 |
| 13 |
Fernandez, Sophia (10)
|
NJEAG |
48.46 |
49.69 |
1.23 |
| 14 |
Paccione, Emma A (9)
|
NJBB |
59.73 |
58.00 |
-1.73 |