| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
DeCasseres, Brianna O (10)
|
MRWEST |
40.43 |
39.08 |
-1.35 |
| 2 |
Lan, Ava (10)
|
NJWAVE |
38.24 |
39.22 |
0.98 |
| 3 |
Galimi, Alexa A (10)
|
MRBAD |
40.62 |
39.45 |
-1.17 |
| 4 |
Cinek, Alexandra (10)
|
MRPAC |
40.44 |
39.61 |
-0.83 |
| 5 |
Zhang, Kaitlyn H (9)
|
MRPAC |
42.65 |
40.87 |
-1.78 |
| 6 |
Gourevitch, Olivia K (10)
|
MRBAD |
41.81 |
41.62 |
-0.19 |
| 7 |
Kim, Taeryn (9)
|
NJWAVE |
38.95 |
42.93 |
3.98 |
| 8 |
Oh, Sophia C (10)
|
MRBGNW |
43.29 |
43.76 |
0.47 |
| 9 |
Oliveira, Tabatha L (10)
|
MRPAC |
45.66 |
44.07 |
-1.59 |
| 10 |
Fernstrom, Abigail R (10)
|
MRBGNW |
47.36 |
45.53 |
-1.83 |
| 11 |
Afanasewicz, Kate N (10)
|
MRPAC |
1:00.52 |
46.20 |
-14.32 |
| 12 |
Fishman, Julianne J (9)
|
MRBAD |
48.09 |
47.23 |
-0.86 |
| 13 |
McGlynn, Monica C (10)
|
MRBAD |
46.57 |
47.91 |
1.34 |
| 14 |
McMullan, Hannah R (10)
|
MRBGNW |
50.83 |
50.46 |
-0.37 |
| 15 |
Hehman, Abigail G (10)
|
MRBGNW |
51.95 |
51.35 |
-0.60 |
| 16 |
Li, Serena (9)
|
MRWEST |
54.06 |
54.33 |
0.27 |
| 17 |
Pfluger, Allison E (9)
|
MRBGNW |
1:00.70 |
54.39 |
-6.31 |
| 18 |
Park, Zoe C (10)
|
MRPAC |
50.99 |
54.71 |
3.72 |
| 19 |
Volodicheva, Emma (9)
|
MRPAC |
54.83 |
56.06 |
1.23 |
|
Margulies, Rachel A (9)
|
MRCOND |
|
DQ |
- |
|
DeSimone, Sophia * (9)
|
MRBGNW |
|
DQ |
- |
|
Fasolino, Sofia (10)
|
MRWEST |
43.28 |
DQ |
- |