| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Ushiki, Lilia (10)
|
NJMCSC |
46.11 |
45.24 |
-0.87 |
| 2 |
Lan, Emelia (10)
|
NJWAVE |
46.10 |
46.57 |
0.47 |
| 3 |
Zhikharev, Anna (9)
|
NJWAVE |
47.09 |
48.83 |
1.74 |
| 4 |
Zhou, Angela (9)
|
NJMEY |
46.40 |
48.93 |
2.53 |
| 5 |
Plutzer, Sienna (9)
|
NJWAVE |
46.95 |
49.38 |
2.43 |
| 6 |
Cordero, Francesca (10)
|
NJBGCD |
48.70 |
50.27 |
1.57 |
| 7 |
Shenoy, Lavanya N (10)
|
NJMCSC |
51.70 |
50.93 |
-0.77 |
| 8 |
Jeng, Gloria H (10)
|
NJMCSC |
50.31 |
51.10 |
0.79 |
| 9 |
Lau, Elizabeth (8)
|
NJMEY |
52.66 |
51.69 |
-0.97 |
| 10 |
Sciacca, Julianna j (10)
|
NJNJRC |
52.13 |
52.89 |
0.76 |
| 11 |
Silver, Emily L (9)
|
NJWAVE |
51.86 |
53.23 |
1.37 |
| 12 |
Srinivasan, Radhika T (8)
|
NJWAVE |
52.78 |
53.35 |
0.57 |
| 13 |
Tibb, Aahana (7)
|
NJWAVE |
55.08 |
57.77 |
2.69 |
| 14 |
Kuhn, Clarissa D (10)
|
NJBB |
54.21 |
58.31 |
4.10 |
| 15 |
Jadro, Julia A (8)
|
NJMAY |
1:01.93 |
1:02.41 |
0.48 |
| 16 |
Lan, Ava (7)
|
NJWAVE |
55.01 |
1:05.27 |
10.26 |
| 17 |
Duran-Gonzalez, Natasha (8)
|
NJCBGC |
1:02.24 |
1:05.57 |
3.33 |