| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Li, Marea J (12)
|
CTARAC |
1:00.98 |
1:04.90 |
3.92 |
| 2 |
Tirch, Doriana R (11)
|
MRHVD |
1:19.18 |
1:19.60 |
0.42 |
| 3 |
Lang, Grace S (12)
|
ADHAWK |
1:26.86 |
1:20.29 |
-6.57 |
| 4 |
Bartolacci, Abigail J (12)
|
MRRA |
1:17.81 |
1:21.54 |
3.73 |
| 5 |
Button, Molly I (12)
|
MRNDAC |
1:29.83 |
1:21.79 |
-8.04 |
| 6 |
Baks, Janneke P (12)
|
MRHVD |
1:30.07 |
1:21.93 |
-8.14 |
| 7 |
Benjamin, Mia (11)
|
MRRA |
1:25.75 |
1:22.78 |
-2.97 |
| 8 |
Bucur, Bella M (11)
|
NJSCY |
1:23.15 |
1:22.88 |
-0.27 |
| 9 |
Shingler, Clara G (11)
|
MRRA |
1:28.46 |
1:23.81 |
-4.65 |
| 10 |
Bosma, Molly L (11)
|
CTARAC |
1:31.71 |
1:24.47 |
-7.24 |
| 11 |
Cimorelli, Kathryn A (12)
|
MRNDAC |
|
1:26.26 |
- |
| 12 |
Lambros, Alethea M (11)
|
MRRA |
1:31.16 |
1:32.21 |
1.05 |
| 13 |
Schramm, Grace E (11)
|
MRNDAC |
1:32.24 |
1:32.51 |
0.27 |
| 14 |
Sanford, Charlotte T (11)
|
MRNDAC |
|
1:35.00 |
- |
| 16 |
Jude, Catherine I (11)
|
MRNDAC |
|
1:48.60 |
- |
|
Gregersen, Leah (11)
|
MRRA |
1:25.62 |
DQ |
- |
|
Davidson, Freja V (12)
|
MRRA |
2:15.53 |
NS |
- |