| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Hlinka, Maria H (16)
|
MRFREE |
1:01.86 |
1:00.50 |
-1.36 |
| 1 |
Chapovsky, Ima (16)
|
MRCENT |
1:03.16 |
1:01.26 |
-1.90 |
| 2 |
Sandoval, Joselyn (15)
|
MRRED |
1:01.49 |
1:02.28 |
0.79 |
| 3 |
Hoffmann, Vivienne A (15)
|
MRLIFE |
1:01.97 |
1:02.43 |
0.46 |
| 4 |
Tripoli, Magdalena A (16)
|
MRMAKO |
1:02.37 |
1:04.60 |
2.23 |
| 5 |
Naidich, Natalia (16)
|
MRMAKO |
1:04.29 |
1:04.79 |
0.50 |
| 6 |
Slarskey, Parker (16)
|
MRMAKO |
1:03.54 |
1:05.63 |
2.09 |
| 7 |
Sheehan, Maeve E (15)
|
MRFREE |
1:03.41 |
1:07.51 |
4.10 |
| 8 |
Ward, Amelia L (15)
|
MRUN |
1:08.75 |
1:07.75 |
-1.00 |
| 9 |
Mitchell, Grace A (15)
|
MRFREE |
1:07.90 |
1:07.89 |
-0.01 |
| 10 |
Nation, Caitlin B (15)
|
MRAPEX |
1:07.02 |
1:08.67 |
1.65 |
| 11 |
Wong, Kaitlyn (16)
|
MRST |
1:09.17 |
1:08.91 |
-0.26 |
| 12 |
Chonko, Mia E (16)
|
MRBKR |
1:11.55 |
1:09.75 |
-1.80 |
| 13 |
Seck, Lalia A (15)
|
MRBKR |
1:10.39 |
1:10.15 |
-0.24 |
| 14 |
Munroe-Reid, Maleah J (15)
|
MRHES |
1:08.03 |
1:10.57 |
2.54 |
| 15 |
Trapasso, Rebecca E (16)
|
MRFREE |
1:13.38 |
1:13.14 |
-0.24 |
| 16 |
Celeita, Nathaly (16)
|
MRRED |
1:09.06 |
1:13.68 |
4.62 |
| 17 |
Greenland, Talia P (15)
|
MRBKR |
1:16.19 |
1:14.00 |
-2.19 |
| 18 |
Quan, Ava (15)
|
MRMCBY |
1:18.27 |
1:15.43 |
-2.84 |
| 19 |
Rojas, Haley S (15)
|
MRNFS |
1:23.29 |
1:22.49 |
-0.80 |
| 20 |
Little, Kaylynn D (16)
|
MRKBM |
1:14.89 |
1:24.36 |
9.47 |
| 21 |
Murga, Ella (15)
|
MRAPEX |
1:40.54 |
1:30.32 |
-10.22 |
| 22 |
Diamond, Olivia (15)
|
MRAPEX |
1:30.05 |
1:32.33 |
2.28 |
| 23 |
Telemaque, Richardeline A (16)
|
MRLIFE |
1:44.54 |
1:32.77 |
-11.77 |
|
Thorpe, Kayla (17)
|
MRFREE |
1:16.58 |
NS |
- |
|
Gloster, Ella J (16)
|
MRFREE |
1:03.28 |
NS |
- |