| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Ha, Kara (12)
|
MRLIFE |
35.10 |
34.47 |
-0.63 |
| 2 |
Chatfield, Elizabeth N (12)
|
MRCAS |
34.44 |
34.53 |
0.09 |
| 3 |
Almanzar, Libertad (12)
|
MRUN |
34.72 |
35.63 |
0.91 |
| 4 |
Wiggins, Alayla (12)
|
MRKBM |
36.01 |
35.99 |
-0.02 |
| 5 |
Tan, Chloe H (11)
|
MRASAP |
42.85 |
38.67 |
-4.18 |
| 6 |
Clarke, Kristina A (11)
|
MRCAS |
37.85 |
38.84 |
0.99 |
| 7 |
Sanchez, Amya (12)
|
MRUN |
39.80 |
41.34 |
1.54 |
| 8 |
Ng, Juliane W (12)
|
MRBKR |
48.66 |
41.69 |
-6.97 |
| 9 |
Champagnie, Chanel (12)
|
MRKBM |
42.27 |
43.57 |
1.30 |
| 10 |
Rodriguez, Isabella D (11)
|
MRKBM |
43.48 |
44.62 |
1.14 |
| 11 |
Hidalgo, Ivanka (11)
|
MRUN |
44.42 |
44.71 |
0.29 |
| 12 |
Lewis, Maeve (11)
|
MRLIFE |
44.20 |
45.27 |
1.07 |
| 13 |
Little, Kaylynn D (11)
|
MRKBM |
47.65 |
48.33 |
0.68 |
| 14 |
Plummer, Christina E (11)
|
MRASAP |
54.78 |
53.35 |
-1.43 |
| 15 |
Valverde, Jahani (11)
|
MRKBM |
54.56 |
55.72 |
1.16 |
|
Catacora, Ruth S (11)
|
MRFAST |
53.44 |
NS |
- |