| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Busen, McKinley R (8)
|
PVCSC |
42.68 |
41.80 |
-0.88 |
| 2 |
Thomas, Ellery M (8)
|
PVASA |
43.82 |
43.53 |
-0.29 |
| 3 |
Bui, Emma T (8)
|
PVMACH |
44.08 |
44.22 |
0.14 |
| 4 |
Miller, McKenzie L (8)
|
PVMACH |
54.82 |
44.81 |
-10.01 |
| 5 |
Groves, Charlotte (7)
|
PVASA |
46.00 |
46.18 |
0.18 |
| 6 |
Marino, Augusta C (8)
|
PVASA |
|
47.20 |
- |
| 7 |
King, Anna M (8)
|
PVMACH |
45.16 |
47.51 |
2.35 |
| 8 |
Erlanger, Madeline Q (8)
|
PVYORK |
54.65 |
47.92 |
-6.73 |
| 9 |
Goudie, Annabelle L (8)
|
PVMACH |
44.39 |
49.20 |
4.81 |
| 10 |
Brown, Josephine G (8)
|
PVASA |
|
50.19 |
- |
| 11 |
Sarathy, Anoushka (8)
|
PVMACH |
49.29 |
52.07 |
2.78 |
| 12 |
Katsaros, Charlotte M (8)
|
PVASA |
53.05 |
53.28 |
0.23 |
| 13 |
Tolar, Mary M (7)
|
PVCSC |
55.37 |
55.63 |
0.26 |
| 14 |
Subramanian, Isabella E (8)
|
PVHACC |
|
56.49 |
- |
| 15 |
Breton, Leila G (8)
|
PVAAC |
1:01.20 |
58.99 |
-2.21 |
| 16 |
Scherrer, Emerson M (7)
|
PVMACH |
|
1:01.92 |
- |
| 17 |
Limkin, Abigail O (8)
|
PVYORK |
|
1:04.18 |
- |
| 18 |
Zenebe, Maraki S (8)
|
PVASA |
|
1:06.77 |
- |
| 19 |
Steffens, Clara L (8)
|
PVMACH |
|
1:14.36 |
- |
|
Nicholas, Chloe L (8)
|
PVHACC |
1:05.12 |
DQ |
- |
|
Cruz, Tiffney K (8)
|
PVFBST |
|
NS |
- |
|
MacIvor, Amelia F (8)
|
PVCSC |
43.20 |
NS |
- |
|
Hefferon, Louise A (7)
|
PVASA |
|
NS |
- |