| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Borowski, Ava M (16)
|
MRBGNW |
56.01 |
58.04 |
2.03 |
| 2 |
Arciniegas, Francesca (17)
|
MRCOND |
57.33 |
59.69 |
2.36 |
| 3 |
Anderson, Kate E (15)
|
MRWEST |
1:01.59 |
59.90 |
-1.69 |
| 4 |
Condon, Daniella M (16)
|
MRWEST |
59.52 |
1:00.35 |
0.83 |
| 5 |
Balachandran, Isabelle P (17)
|
MRBAD |
1:01.00 |
1:01.17 |
0.17 |
| 6 |
Marzano, Haleigh M (20)
|
MRPAC |
59.10 |
1:01.96 |
2.86 |
| 7 |
Casey, Sasha G (16)
|
MRPAC |
1:00.68 |
1:01.98 |
1.30 |
| 8 |
Burnett, Sydney A (15)
|
MRWEST |
1:03.21 |
1:03.39 |
0.18 |
| 9 |
Naughton, Kiera H (15)
|
MRBGNW |
1:02.01 |
1:03.69 |
1.68 |
| 10 |
Jolia, Dina (16)
|
MRPAC |
1:03.45 |
1:03.81 |
0.36 |
| 11 |
Lee, Lea (15)
|
MRPAC |
1:03.79 |
1:03.84 |
0.05 |
| 12 |
Valentini, Ilaria (18)
|
MRPAC |
1:01.17 |
1:03.96 |
2.79 |
| 13 |
Sun, Julia (15)
|
MRBGNW |
1:08.39 |
1:09.30 |
0.91 |
| 14 |
Fagan, Paige C (15)
|
MRBGNW |
1:06.98 |
1:12.37 |
5.39 |
| 15 |
Montanez, Nina P (15)
|
MRPAC |
1:43.58 |
1:32.14 |
-11.44 |
|
Whang, Taylor K (18)
|
MRBGNW |
58.65 |
NS |
- |
|
Dorsey-Reyes, Violet A (15)
|
MRPAC |
1:01.32 |
NS |
- |
|
Byrne, Kelly P (15)
|
MRWEST |
59.89 |
NS |
- |