| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Pappas, Alexa M (16)
|
CTUN |
55.04 |
54.92 |
-0.12 |
| 2 |
Geelen, Lente (15)
|
CTCPAC |
57.21 |
58.61 |
1.40 |
| 3 |
Moore, Sophia K (17)
|
CTCPAC |
54.91 |
59.04 |
4.13 |
| 4 |
Holmes, Kaitlyn A (15)
|
CTCPAC |
1:01.00 |
1:00.82 |
-0.18 |
| 5 |
Dantas, Emma A (16)
|
CTCPAC |
1:02.32 |
1:01.01 |
-1.31 |
| 6 |
Condon, Madeline Q (18)
|
NJCJAC |
57.95 |
1:02.67 |
4.72 |
| 7 |
Hewson, Cate E (16)
|
NJCJAC |
59.04 |
1:02.85 |
3.81 |
| 8 |
Velishka, Jessie D (16)
|
CTCPAC |
1:02.28 |
1:03.16 |
0.88 |
| 9 |
Miller, Madeline S (15)
|
MRSMC |
1:00.43 |
1:04.38 |
3.95 |
| 10 |
Babashak, Emma G (17)
|
CTUN |
1:03.18 |
1:04.53 |
1.35 |
| 11 |
Chang, Shu-Min J (15)
|
MRSMC |
1:02.65 |
1:05.47 |
2.82 |
| 12 |
Sandoz, Jordan L (17)
|
NJCJAC |
1:01.84 |
1:07.08 |
5.24 |
| 13 |
Robinson, Amanda T (15)
|
CTUN |
1:08.98 |
1:08.15 |
-0.83 |
| 14 |
Ashe, Olivia N (15)
|
CTFVYT |
1:07.58 |
1:08.52 |
0.94 |
| 15 |
Fletcher, Elizabeth G (15)
|
CTUN |
1:05.85 |
1:08.84 |
2.99 |
| 16 |
May, Emma M (15)
|
CTCPAC |
1:10.69 |
1:09.28 |
-1.41 |
| 17 |
van Wijnen, Alice R (15)
|
MRSMC |
1:08.19 |
1:09.34 |
1.15 |
| 18 |
Kwee, Hannah W (15)
|
CTUN |
1:07.53 |
1:09.37 |
1.84 |
| 19 |
Pia, Gabriella R (17)
|
NJCJAC |
1:06.66 |
1:10.24 |
3.58 |
| 20 |
Ellsworth, Madison (15)
|
CTFVYT |
1:13.76 |
1:12.68 |
-1.08 |
| 21 |
Gaza, Claire G (15)
|
MRSMC |
1:11.47 |
1:13.35 |
1.88 |
| 22 |
Schambach, Emma J (16)
|
CTSYS |
1:09.06 |
1:14.35 |
5.29 |
| 23 |
Carrington, Natalie C (16)
|
CTUN |
1:14.28 |
1:16.28 |
2.00 |
| 24 |
Walsh, Kiara B (16)
|
MRSMC |
1:20.71 |
1:22.73 |
2.02 |
| 25 |
Thompson, Ashley J (17)
|
CTFVYT |
1:18.79 |
1:26.43 |
7.64 |