| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Koh, Vivian A (10)
|
MRPAC |
40.57 |
39.63 |
-0.94 |
| 2 |
Sell, Everley H (10)
|
MRPAC |
43.27 |
43.17 |
-0.10 |
| 3 |
Oh, Olivia Y (10)
|
MRBGNW |
43.95 |
43.42 |
-0.53 |
| 4 |
Vasser, Sophie G (10)
|
MRWEST |
45.12 |
43.65 |
-1.47 |
| 5 |
Cacciato, Nina R (10)
|
MRPAC |
46.31 |
44.55 |
-1.76 |
| 6 |
Kashyap, Aanya (10)
|
MRWEST |
49.10 |
45.14 |
-3.96 |
| 7 |
Cosetti, Alana E (10)
|
MRBGNW |
46.31 |
45.19 |
-1.12 |
| 8 |
Newland, Savanna M (10)
|
MRBGNW |
49.37 |
45.26 |
-4.11 |
| 9 |
Fang, Minyi (10)
|
MRWEST |
49.29 |
46.76 |
-2.53 |
| 10 |
Sanderson, Jacqueline T (10)
|
CTGRYM |
46.68 |
48.25 |
1.57 |
| 11 |
Sotherden, Helen E (10)
|
MRBGNW |
48.55 |
48.97 |
0.42 |
| 12 |
Galimi, Grace K (10)
|
MRWEST |
50.40 |
51.02 |
0.62 |
| 13 |
McMahon, Julia J (10)
|
CTGRYM |
51.27 |
54.92 |
3.65 |
| 14 |
Buco, Aurora S (10)
|
MRBGNW |
59.25 |
57.14 |
-2.11 |
| 15 |
Pradhan, Anushka (10)
|
MRBGNW |
58.87 |
57.49 |
-1.38 |
| 16 |
Partridge, Rosemary J (10)
|
CTGRYM |
54.53 |
1:00.29 |
5.76 |
| 17 |
Fleming, Eloise L (10)
|
CTGRYM |
58.35 |
1:02.33 |
3.98 |
| 18 |
Gonzalez, Sophia N (10)
|
MRBGNW |
1:04.19 |
1:06.38 |
2.19 |