| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Redpath, Frances M (12)
|
MRUN-B |
1:04.66 |
1:06.13 |
1.47 |
| 2 |
Franks, Ava L (12)
|
MRBGNW |
1:10.17 |
1:08.31 |
-1.86 |
| 3 |
Taps, Danielle E (11)
|
MRUN-B |
1:12.32 |
1:11.43 |
-0.89 |
| 4 |
Posner, Kathryn G (11)
|
MRBGNW |
1:13.49 |
1:13.15 |
-0.34 |
| 5 |
Alexander, Sinceraty D (11)
|
MRSPAR |
1:22.89 |
1:14.74 |
-8.15 |
| 6 |
Jones, Ella L (12)
|
MRBGNW |
|
1:16.27 |
- |
| 7 |
Kamal, Sarah M (12)
|
MRBGNW |
1:16.71 |
1:16.55 |
-0.16 |
| 8 |
Weglarz, Juliet R (11)
|
MRSPAR |
1:20.62 |
1:18.39 |
-2.23 |
| 9 |
Calle, Nicole G (12)
|
MRSPAR |
1:30.32 |
1:19.01 |
-11.31 |
| 10 |
Kazibwe, Mary N (11)
|
MRBGNW |
1:21.59 |
1:20.92 |
-0.67 |
| 11 |
Galpotthawela, Mythri L (12)
|
MRBGNW |
1:22.35 |
1:23.95 |
1.60 |
| 12 |
Hallac, Anna C (11)
|
MRBGNW |
1:30.96 |
1:26.36 |
-4.60 |
| 13 |
Santana, Gabrielle T (11)
|
MRSPAR |
1:25.44 |
1:29.27 |
3.83 |
|
Gagnon, Chloe E (11)
|
MRYMID |
1:51.35 |
DQ |
- |
|
Ashman, Olivia R (12)
|
MRYMID |
1:36.05 |
NS |
- |
|
Iannetta, Ava L (11)
|
MRSPAR |
1:25.23 |
NS |
- |