| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Moser, Mary C (22)
|
MRNYAC |
53.50 |
54.97 |
1.47 |
| 2 |
Melnyk, Mary K (14)
|
MRBAD |
53.45 |
55.74 |
2.29 |
| 3 |
Oceguera, Mariajose V (18)
|
MRBAD |
53.85 |
55.84 |
1.99 |
| 4 |
Neubauer, Marie (14)
|
MRBAD |
56.54 |
57.36 |
0.82 |
| 5 |
Dobben, Anna L (23)
|
MRNYAC |
52.41 |
57.66 |
5.25 |
| 6 |
Veru, Nicole (15)
|
MRGAEL |
56.04 |
58.12 |
2.08 |
| 7 |
Simmons, Hannah H (14)
|
MRBAD |
57.63 |
58.44 |
0.81 |
| 8 |
Cole, Mikaela G (16)
|
MRAPEX |
58.29 |
59.02 |
0.73 |
| 9 |
Guinee, Briittany A (22)
|
MRNYAC |
|
59.07 |
- |
| 10 |
Pabby, Tanvi (15)
|
MRBAD |
58.38 |
59.08 |
0.70 |
| 11 |
Hodes, Sarah M (18)
|
MRBAD |
57.61 |
1:00.09 |
2.48 |
| 12 |
Lantin, Alexa (15)
|
MRBAD |
59.07 |
1:00.22 |
1.15 |
| 13 |
Ebratt, Emily (14)
|
MRBAD |
1:00.41 |
1:02.25 |
1.84 |
| 14 |
Berridge, Olivia S (16)
|
MRBAD |
1:04.65 |
1:02.75 |
-1.90 |
| 15 |
Weltz, Sarah (15)
|
MRWSA |
1:04.16 |
1:03.65 |
-0.51 |
| 16 |
Schelchere, Montana (15)
|
MRHES |
1:07.00 |
1:05.29 |
-1.71 |
| 17 |
Leonard, Caitlin M (16)
|
MRAPEX |
1:07.32 |
1:07.81 |
0.49 |
| 18 |
Li, Debbie (16)
|
MRHES |
1:08.91 |
1:10.92 |
2.01 |
| 19 |
Li, Dora (17)
|
MRHES |
1:16.73 |
1:14.04 |
-2.69 |
|
O'Reilly, Maggie R (16)
|
MRGAEL |
58.37 |
NS |
- |
|
McClellan, Emily (22)
|
MRBAD |
|
NS |
- |
|
O'Donnell McCarthy, Fiona M (27)
|
MRNYAC |
54.45 |
NS |
- |