| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Mordaunt, Victoria (12)
|
MRYMID |
1:03.65 |
1:04.11 |
0.46 |
| 2 |
Wafer, Sara N (12)
|
MRTS |
1:08.28 |
1:09.80 |
1.52 |
| 3 |
Klein, Farrah M (11)
|
MRTS |
1:10.92 |
1:10.25 |
-0.67 |
| 4 |
Cahalane, Erin C (12)
|
MRTS |
1:12.33 |
1:10.93 |
-1.40 |
| 5 |
Rivera, Jacqueline (12)
|
MRNBS |
1:11.07 |
1:14.97 |
3.90 |
| 6 |
Bridgemanhel, Adrianna K (12)
|
MRTS |
1:15.38 |
1:15.71 |
0.33 |
| 7 |
Giannini, Alanah M (11)
|
MRPBAC |
1:16.98 |
1:16.26 |
-0.72 |
| 8 |
Lombardo, Kayla (12)
|
MRYMID |
|
1:16.51 |
- |
| 9 |
Boyon, Madelyn A (11)
|
MRFA |
1:28.36 |
1:20.72 |
-7.64 |
| 10 |
Aikman, Saskia M (12)
|
MRYMID |
1:21.23 |
1:21.33 |
0.10 |
| 11 |
Policaro, Ava N (11)
|
MRLBA |
1:20.92 |
1:22.72 |
1.80 |
| 12 |
Dovgan, Anna T (12)
|
MRMWDA |
1:25.38 |
1:24.61 |
-0.77 |
| 13 |
Ozkovalak, Lara (12)
|
MRNBS |
1:29.26 |
1:24.88 |
-4.38 |
| 14 |
Hendrickson, Riley D (12)
|
MRYMID |
|
1:26.71 |
- |
| 15 |
Hogger, Annika R (12)
|
MRFA |
1:31.75 |
1:27.02 |
-4.73 |
| 16 |
Glazebnik, Julia T (12)
|
MRTS |
1:36.70 |
1:32.54 |
-4.16 |
| 17 |
Campbell, Taylor M (12)
|
MRLBA |
|
1:38.19 |
- |
| 18 |
Shaw, Skylar A (12)
|
MRMWDA |
1:54.00 |
1:48.80 |
-5.20 |
|
Guerrier, Olivia J (12)
|
MRTS |
1:36.96 |
DQ |
- |