| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Tan, Sayjel E (12)
|
MRQNS |
1:07.41 |
1:04.95 |
-2.46 |
| 2 |
Dorsey-Reyes, Violet (12)
|
MRMAKO |
1:07.39 |
1:05.90 |
-1.49 |
| 3 |
Wu, Katelin (12)
|
MRQNS |
1:08.65 |
1:09.49 |
0.84 |
| 4 |
McPartland, Katie (12)
|
MRMAKO |
1:12.80 |
1:09.50 |
-3.30 |
| 5 |
Vincente, Julia (12)
|
MRTRI |
1:12.65 |
1:09.88 |
-2.77 |
| 6 |
Bell, Fiona M (12)
|
MRAGUA |
1:10.74 |
1:11.37 |
0.63 |
| 7 |
Neary, Cara J (12)
|
MRAGUA |
1:11.12 |
1:12.39 |
1.27 |
| 8 |
Kim, Caroline K (12)
|
MRAGUA |
1:14.33 |
1:12.69 |
-1.64 |
| 9 |
Rodriguez, Catalina A (12)
|
MRQNS |
1:14.67 |
1:13.46 |
-1.21 |
| 10 |
Bludova, Oryna (12)
|
MRBKR |
1:15.81 |
1:14.12 |
-1.69 |
| 11 |
McClure, Isobel (12)
|
MRMAKO |
1:15.87 |
1:15.22 |
-0.65 |
| 12 |
Bieganowski, Maya A (11)
|
MRQNS |
|
1:18.29 |
- |
| 13 |
Liang, Magan (12)
|
MRTRI |
1:45.00 |
1:18.56 |
-26.44 |
| 14 |
Mikheyeva, Marianna (11)
|
MRTRI |
1:20.27 |
1:19.11 |
-1.16 |
| 15 |
Vernhes, Estelle (11)
|
MRMAKO |
1:25.27 |
1:19.39 |
-5.88 |
| 16 |
Correa, Olivia (12)
|
MRTRI |
1:19.57 |
1:20.33 |
0.76 |
| 17 |
Haider, Cecelia P (12)
|
MRAGUA |
1:25.57 |
1:21.58 |
-3.99 |
| 18 |
Resnick, Chloe D (11)
|
MRUN |
1:34.85 |
1:23.15 |
-11.70 |
| 19 |
Leon, Ashley C (11)
|
MREHY |
1:25.13 |
1:23.98 |
-1.15 |
| 20 |
D'Hollander, Delphine M (11)
|
MRMAKO |
1:27.62 |
1:25.62 |
-2.00 |
| 21 |
Ellefsen, Ryann (11)
|
MRTRI |
1:29.84 |
1:26.83 |
-3.01 |
| 22 |
Province, Shaye L (12)
|
MRASAP |
1:27.02 |
1:28.30 |
1.28 |
| 23 |
Howell, Delia J (12)
|
MRBKR |
1:40.00 |
1:32.87 |
-7.13 |
| 24 |
Panucci, Serena (11)
|
MRBKR |
1:40.53 |
1:35.45 |
-5.08 |
| 25 |
Glace, Leilani G (11)
|
MRBKR |
1:48.18 |
1:37.64 |
-10.54 |
| 26 |
Ng, Juliane W (12)
|
MRBKR |
1:56.73 |
1:38.82 |
-17.91 |
| 27 |
Clark, Emily (11)
|
MRTRI |
2:00.00 |
1:49.25 |
-10.75 |