| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Wagner, Isabella G (10)
|
NJWFY |
52.05 |
49.73 |
-2.32 |
| 2 |
Monge, Mariana (9)
|
NJWFY |
51.82 |
49.87 |
-1.95 |
| 3 |
Turano, Grace C (10)
|
NJWFY |
48.67 |
50.18 |
1.51 |
| 4 |
Shave, Vivian M (10)
|
NJWFY |
48.93 |
51.85 |
2.92 |
| 5 |
Zhou, Allison (10)
|
SAY |
|
52.02 |
- |
| 6 |
Demirdag, Derin (10)
|
NJWFY |
51.87 |
52.51 |
0.64 |
| 7 |
An, Harper Y (10)
|
NJWFY |
53.78 |
53.02 |
-0.76 |
| 8 |
Patarozzi, Paige D (9)
|
SAY |
57.03 |
55.81 |
-1.22 |
| 9 |
Toor, Karina (9)
|
NJWFY |
1:09.42 |
59.21 |
-10.21 |
| 10 |
McArthur, Fiona M (10)
|
SAY |
1:04.39 |
1:00.08 |
-4.31 |
| 11 |
Rosenfield, Natalia G (9)
|
SAY |
1:03.55 |
1:01.24 |
-2.31 |
| 12 |
Artemenko, Dabney S (8)
|
SAY |
1:15.00 |
1:02.26 |
-12.74 |
| 13 |
Florkiewicz, Elizabeth (9)
|
NJWFY |
|
1:08.78 |
- |
| 14 |
Campbell, Gabriella I (9)
|
NJRANY |
1:29.12 |
1:38.44 |
9.32 |
|
Manning, Lucy T (7)
|
SAY |
1:15.00 |
DQ |
- |
|
Los, Hannah M (9)
|
NJWFY |
1:06.22 |
NS |
- |