| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Chazov, Pelagia (12)
|
MRFREE |
1:08.54 |
1:06.54 |
-2.00 |
| 1 |
Bouzarouata, Salma K (12)
|
MRLIE |
1:08.64 |
1:08.69 |
0.05 |
| 2 |
Lord, Sophia (12)
|
MRWEST |
1:09.32 |
1:07.77 |
-1.55 |
| 2 |
Holmes, Isabel (12)
|
MRCAS |
1:11.74 |
1:09.14 |
-2.60 |
| 3 |
Samko, Clara M (12)
|
MRHS |
1:11.06 |
1:09.95 |
-1.11 |
| 3 |
Slarskey, Parker (12)
|
MRMAKO |
1:17.20 |
1:24.78 |
7.58 |
| 4 |
Formariz, Deva (12)
|
MRRIST |
1:12.94 |
1:11.01 |
-1.93 |
| 5 |
Hogan, Kayla J (12)
|
MRLIE |
1:13.79 |
1:11.05 |
-2.74 |
| 6 |
Weiss, Madeline M (12)
|
MRWEST |
1:13.06 |
1:12.11 |
-0.95 |
| 7 |
Tavitian, Charlize S (12)
|
MRBAD |
1:18.51 |
1:12.90 |
-5.61 |
| 8 |
Graham, Agatha A (12)
|
MRRED |
1:15.58 |
1:13.36 |
-2.22 |
| 9 |
Nalepka, Katie J (12)
|
MRBAD |
1:19.18 |
1:13.92 |
-5.26 |
| 10 |
Chen, Audrey (12)
|
MRLIE |
1:14.08 |
1:15.22 |
1.14 |
| 11 |
Arnall, Katherine V (12)
|
MRYFD |
1:19.07 |
1:15.75 |
-3.32 |
| 12 |
Li, Yusi (12)
|
MRWEST |
1:16.16 |
1:15.94 |
-0.22 |
| 13 |
Reyes Aguirre, Juana (12)
|
MRAPEX |
1:19.03 |
1:16.15 |
-2.88 |
| 14 |
Wood, Addison (12)
|
MRMAKO |
1:16.56 |
1:16.38 |
-0.18 |
| 15 |
Xiao, Lucia (12)
|
MRYFD |
1:16.59 |
1:16.82 |
0.23 |
| 16 |
Auchincloss, Lily S (12)
|
MRYFD |
1:16.74 |
1:17.79 |
1.05 |
|
D'Amelio, Theodora M (12)
|
MRFREE |
1:13.35 |
DQ |
- |