| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Potter, Isabella (10)
|
NIGVST |
54.23 |
48.94 |
-5.29 |
| 2 |
Clapp, Alice S (10)
|
NIISWM |
49.96 |
49.19 |
-0.77 |
| 3 |
Boyer, Chloe G (8)
|
NIISWM |
50.35 |
49.39 |
-0.96 |
| 4 |
Janeski, Gabrielle M (10)
|
NIKRKN |
1:00.65 |
50.51 |
-10.14 |
| 5 |
Denlinger, Elizabeth J (9)
|
NIWAAC |
|
56.43 |
- |
| 6 |
El Ghissassi, Sidra S (7)
|
NIVEST |
55.90 |
56.57 |
0.67 |
| 7 |
Blakely-Armitage, Fiona S (8)
|
NIISWM |
|
57.05 |
- |
| 8 |
Cheresnowsky, Olivia K (9)
|
NIWAAC |
|
58.49 |
- |
| 9 |
Grover, MacKenzie Z (10)
|
NIKRKN |
|
1:01.93 |
- |
| 10 |
Wang, Bethany B (6)
|
NIKRKN |
|
1:02.14 |
- |
| 11 |
Hutcheson, Rebecka L (9)
|
NIKRKN |
1:01.93 |
1:02.98 |
1.05 |
| 12 |
Cobb, Grace C (10)
|
NIWAAC |
1:02.97 |
1:03.81 |
0.84 |
| 13 |
Bush, Mary (10)
|
NICAGO |
58.12 |
1:04.13 |
6.01 |
| 14 |
Gonzalez, Hannah R (9)
|
NIKRKN |
|
1:06.68 |
- |
| 15 |
Ingham, Nora P (10)
|
NIKRKN |
|
1:09.67 |
- |
| 16 |
Gao, Victoria G (9)
|
NIWAAC |
|
1:14.00 |
- |
| 17 |
Cortright, Victoria A (9)
|
NIKRKN |
|
1:17.31 |
- |
|
Sedlak, Eliza L (9)
|
NIKRKN |
|
DQ |
- |
|
Ramos, Daniela I (8)
|
NIUNAC |
58.30 |
DQ |
- |
|
Mayo, Mari E (10)
|
NIKRKN |
|
DQ |
- |
|
King, Hannah E (10)
|
NIKRKN |
|
DQ |
- |
|
Benway, Kathleen M (9)
|
NIGGST |
|
DQ |
- |
|
Kocak, Tessa R (9)
|
NICAGO |
1:07.37 |
DQ |
- |