| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Kim, Taeryn (11)
|
MRPAC |
1:13.45 |
1:13.51 |
0.06 |
| 2 |
Castellanos, Sofia (12)
|
CTZEUS |
1:21.37 |
1:20.34 |
-1.03 |
| 3 |
Catanzaro, Gemma R (12)
|
MRPAC |
1:28.60 |
1:21.12 |
-7.48 |
| 4 |
Qian, Sophia (12)
|
MRMPNY |
1:25.67 |
1:23.65 |
-2.02 |
| 5 |
McMahon, Katherine K (12)
|
CTGRYM |
1:22.93 |
1:25.27 |
2.34 |
| 6 |
Connard, Amelia (12)
|
CTGRYM |
1:25.33 |
1:25.57 |
0.24 |
| 7 |
Park, Zoe C (12)
|
MRPAC |
1:23.61 |
1:25.73 |
2.12 |
| 8 |
Tait, Charlotte J (11)
|
CTGRYM |
1:26.37 |
1:27.82 |
1.45 |
| 9 |
Javer, Samara L (12)
|
MREAST |
1:24.65 |
1:29.09 |
4.44 |
| 10 |
Volodicheva, Emma (12)
|
MRPAC |
1:32.65 |
1:30.53 |
-2.12 |
| 11 |
Ciobanu, Ella C (11)
|
MRPAC |
1:30.64 |
1:30.55 |
-0.09 |
| 12 |
Kim, Cameron E (11)
|
MREAST |
1:35.49 |
1:31.14 |
-4.35 |
| 13 |
Krogsgaard, Linnea A (12)
|
MREAST |
1:38.21 |
1:32.62 |
-5.59 |
| 14 |
Krogsgaard, Astrid G (12)
|
MREAST |
1:31.59 |
1:32.81 |
1.22 |
| 15 |
Gorog, Sofia (11)
|
CTGRYM |
1:34.95 |
1:33.78 |
-1.17 |
| 16 |
Walter, Silvana M (11)
|
MRPATS |
1:52.71 |
1:35.33 |
-17.38 |
| 17 |
Wang, Keer (11)
|
MREAST |
|
1:36.78 |
- |
| 18 |
Mora, Olivia S (12)
|
CTZEUS |
1:36.50 |
1:37.80 |
1.30 |
| 19 |
Choe, Grace H (11)
|
MRPAC |
1:37.12 |
1:37.96 |
0.84 |
| 20 |
Henkes, Julia E (11)
|
CTGRYM |
1:42.62 |
1:38.65 |
-3.97 |
| 21 |
Mandel, Becky L (11)
|
MREAST |
|
1:42.72 |
- |
| 22 |
McClinchy, Stella B (11)
|
MREAST |
1:39.99 |
1:44.06 |
4.07 |
| 23 |
Siano, Lillian I (11)
|
CTZEUS |
1:44.38 |
1:44.35 |
-0.03 |
| 24 |
Hong, Lauren (12)
|
CTGRYM |
1:41.56 |
1:47.46 |
5.90 |
| 25 |
Lefebvre, Carolena (12)
|
CTGRYM |
1:42.78 |
1:51.46 |
8.68 |
| 26 |
Kim, Madison Y (12)
|
MRPAC |
1:54.48 |
1:53.44 |
-1.04 |
| 27 |
O'Rourke, Ann M (11)
|
MREAST |
1:54.74 |
2:02.22 |
7.48 |
|
McCauley, Siobhan E (12)
|
CTGRYM |
1:30.60 |
DQ |
- |
|
Ripp, Catherine M (11)
|
CTGRYM |
1:33.38 |
NS |
- |
|
Toczydlowska, Maya (12)
|
CTGRYM |
1:39.72 |
NS |
- |
|
Kampf, Ava (12)
|
CTGRYM |
1:49.62 |
NS |
- |