| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Bodnar, Clara G (12)
|
NESSYS |
30.56 |
30.86 |
0.30 |
| 2 |
Parsons, Meera (12)
|
NEBYB |
32.25 |
31.90 |
-0.35 |
| 3 |
Ohannessian, Christiana M (11)
|
NEBYB |
32.74 |
33.00 |
0.26 |
| 4 |
Chow, Jaime W (12)
|
NESSYS |
35.28 |
34.56 |
-0.72 |
| 5 |
Dessy, Kaitlin L (11)
|
NESSYS |
32.96 |
35.93 |
2.97 |
| 6 |
Benarieb, Nora O (12)
|
NEMAL |
52.05 |
37.22 |
-14.83 |
| 7 |
Chow, Sarah W (12)
|
NESSYS |
37.92 |
37.76 |
-0.16 |
| 8 |
Hewett, Bryn L (11)
|
NEANA |
42.73 |
39.05 |
-3.68 |
| 9 |
Nguyen, Lillian T (12)
|
NESSYS |
|
39.68 |
- |
| 10 |
Kulkarni, Abigail (12)
|
NEBYB |
38.69 |
39.92 |
1.23 |
| 11 |
Or-Shahar, Annaya T (12)
|
NEANA |
52.97 |
40.69 |
-12.28 |
| 12 |
Santunioni, Julia M (11)
|
NEBYB |
39.37 |
40.88 |
1.51 |
| 13 |
Pham, Haily N (11)
|
NESSYS |
44.16 |
41.49 |
-2.67 |
| 14 |
Jeong, Soomin (11)
|
NESSYS |
40.76 |
41.67 |
0.91 |
| 15 |
Benipal, Sania (11)
|
NEMAL |
48.25 |
42.75 |
-5.50 |
| 16 |
Pham, Keira V (11)
|
NESSYS |
|
45.12 |
- |
| 17 |
Damerjian, Jessica J (11)
|
NEBYB |
|
47.62 |
- |
| 18 |
Hamam, Amira (11)
|
NESSYS |
47.69 |
48.72 |
1.03 |
| 19 |
Cohen, Maya (12)
|
NEMGCB |
42.00 |
49.19 |
7.19 |
| 20 |
Piantedosi, Sofia L (12)
|
NESSYS |
44.26 |
50.80 |
6.54 |
| 21 |
Wang, Katherine E (11)
|
NEANA |
57.53 |
59.85 |
2.32 |
|
Bennion, Abigail (12)
|
NESSYS |
|
DQ |
- |