| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Insana, Anna P (12)
|
NJSCAR |
30.92 |
31.02 |
0.10 |
| 2 |
Macalintal, Madison G (11)
|
NJSCAR |
31.05 |
31.08 |
0.03 |
| 3 |
Kutuzov, Anastasia N (12)
|
NJSCAR |
31.52 |
31.46 |
-0.06 |
| 4 |
Finnamore, Lena (12)
|
NJMETM |
33.67 |
31.65 |
-2.02 |
| 5 |
Park, Anna (12)
|
NJSCAR |
31.20 |
32.14 |
0.94 |
| 6 |
Kutuzov, Katerina A (12)
|
NJSCAR |
33.08 |
33.03 |
-0.05 |
| 7 |
Jeng, Flora H (11)
|
NJSCAR |
32.80 |
33.08 |
0.28 |
| 8 |
Smith, Taylor M (12)
|
NJSCAR |
32.32 |
33.31 |
0.99 |
| 9 |
McBoyle, Paige K (11)
|
NJSCAR |
33.55 |
33.40 |
-0.15 |
| 10 |
Cosma, Sophia (12)
|
NJMETM |
34.37 |
36.82 |
2.45 |
| 11 |
Mannion, Sydney (12)
|
NJMETM |
38.29 |
41.59 |
3.30 |
| 12 |
Schmitz, Alexis E (12)
|
NJSCAR |
43.99 |
43.49 |
-0.50 |
| 13 |
Holtzman, Cori (11)
|
NJMETM |
56.62 |
44.84 |
-11.78 |
| 14 |
Moreno, Olivia R (11)
|
NJSCAR |
48.30 |
48.35 |
0.05 |
|
Jaballah, Manel (11)
|
NJSCAR |
44.68 |
DQ |
- |
|
Lyons, Isabelle R (11)
|
NJSCAR |
48.65 |
DQ |
- |