| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Ricciardi, Allyson J (12)
|
MACBST |
1:08.48 |
1:08.19 |
-0.29 |
| 1 |
Majewski, Madeline J (11)
|
MACBST |
1:17.78 |
1:16.65 |
-1.13 |
| 1 |
Russ, Olivia (12)
|
MACBFY |
1:24.25 |
1:19.55 |
-4.70 |
| 2 |
Mitchell, Victoria S (12)
|
MASSC |
1:15.88 |
1:12.29 |
-3.59 |
| 2 |
LaPlaunt, Katelyn (12)
|
MACAC |
|
1:16.71 |
- |
| 2 |
Ciamaichelo, Clara N (12)
|
MALMOR |
|
1:20.55 |
- |
| 3 |
Ruch, Elizabeth P (12)
|
MACBST |
1:19.47 |
1:16.84 |
-2.63 |
| 3 |
Ott, Cassidy M (11)
|
MASSC |
1:23.78 |
1:20.97 |
-2.81 |
| 4 |
Shackelford, Madison L (12)
|
MACBST |
1:18.70 |
1:17.48 |
-1.22 |
| 4 |
Si, Christina K (11)
|
MASSC |
1:26.02 |
1:21.91 |
-4.11 |
| 5 |
Rahardjo, Seraphim C (11)
|
MASSC |
1:25.48 |
1:22.44 |
-3.04 |
| 6 |
Baicoianu, Ada (12)
|
MAUMAC |
1:25.97 |
1:22.60 |
-3.37 |
| 6 |
Danser, Julia A (12)
|
MATRA |
|
1:22.60 |
- |
| 8 |
Waked, Christelle M (12)
|
MATRA |
1:27.42 |
1:22.69 |
-4.73 |
| 9 |
Williams, Emma V (12)
|
MACBST |
|
1:23.25 |
- |
| 10 |
Stankiewicz-Goldsmit, Olivi (11)
|
MASSC |
|
1:23.34 |
- |
| 11 |
Bottino, Gianna M (11)
|
MACBST |
|
1:25.60 |
- |
| 12 |
Maurya, Anshi (11)
|
MAUMAC |
1:25.83 |
1:26.74 |
0.91 |
| 13 |
Shapiro, Sarah (11)
|
MACBFY |
1:27.71 |
1:26.83 |
-0.88 |
| 14 |
Senior, Mina (11)
|
MACBFY |
1:40.22 |
1:26.88 |
-13.34 |
| 15 |
Meyers, Sophia M (11)
|
MALMOR |
|
1:33.52 |
- |
| 16 |
Magliaro, Lauren M (12)
|
MACBFY |
1:46.54 |
1:34.58 |
-11.96 |
| 17 |
Satheesh, Varunikha M (11)
|
MACBST |
|
1:36.90 |
- |
| 18 |
Moore, Aubrie E (11)
|
MASOUD |
|
1:39.82 |
- |
|
Grinberg, Victoria (11)
|
MALMOR |
|
DQ |
- |
|
Dietrick, Tessa J (11)
|
MASSC |
1:25.58 |
NS |
- |
|
Webb, Siena L (11)
|
MALMOR |
1:23.49 |
NS |
- |
|
Elston, Ayanna G (11)
|
MATRA |
|
NS |
- |
|
Poon, Jaime C (11)
|
MACBST |
1:20.58 |
NS |
- |