| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Funk, Abigail R (12)
|
FGEA |
47.94 |
39.97 |
-7.97 |
| 2 |
Suarez Alarcon, Gabriella A (12)
|
FGMBS |
43.62 |
41.80 |
-1.82 |
| 3 |
Orellana, Sophia (12)
|
FGMCDA |
40.77 |
41.82 |
1.05 |
| 4 |
Vela, Leah (12)
|
FGCANE |
42.15 |
43.28 |
1.13 |
| 5 |
Arnedo, Angelina K (12)
|
FGNMST |
42.00 |
43.37 |
1.37 |
| 6 |
Mercado, Keira R (12)
|
FGEA |
42.46 |
43.75 |
1.29 |
| 7 |
Hunt, Sienna * (12)
|
FGCANE |
45.83 |
44.56 |
-1.27 |
| 8 |
Scheingoltz, Lillian (12)
|
FGMCDA |
46.96 |
44.63 |
-2.33 |
| 9 |
Corral, Natalia M (12)
|
FGCANE |
42.65 |
44.92 |
2.27 |
| 10 |
Pallot, Sora (11)
|
FGMCDA |
47.71 |
45.37 |
-2.34 |
| 11 |
Sime Lanang, Stacey * (11)
|
FGCANE |
47.19 |
46.00 |
-1.19 |
| 12 |
Scullin, Priscilla L (12)
|
FGCANE |
55.37 |
47.53 |
-7.84 |
| 13 |
Lopez, Karen (11)
|
FGASC |
51.16 |
48.93 |
-2.23 |
| 14 |
Schoolman-Wood, Orly C (11)
|
FGCANE |
53.61 |
52.47 |
-1.14 |
| 15 |
Mora-Carrera, Kateri (11)
|
FGASC |
|
53.10 |
- |
| 16 |
Dupoyet, Cecile (11)
|
FGSGST |
1:01.20 |
53.12 |
-8.08 |
| 17 |
Mandel, Sydney (11)
|
FGMCDA |
57.98 |
57.62 |
-0.36 |
|
Young, Natalie R (12)
|
FGCANE |
44.86 |
44.97 |
0.11 |
|
Lewerenz, Lena H (11)
|
FGSGST |
1:06.61 |
DQ |
- |
|
Fuller, Mayanne L (11)
|
FGEA |
53.81 |
NS |
- |