| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Fenn, Lauren E (16)
|
MAPFY |
59.02 |
1:03.34 |
4.32 |
| 1 |
Delaney, Julia J (15)
|
MAPFY |
1:06.48 |
1:08.29 |
1.81 |
| 1 |
Alulis, Rachael A (17)
|
MAKIDS |
1:17.06 |
1:16.16 |
-0.90 |
| 2 |
Hosking, Sarah O (15)
|
MAKIDS |
1:03.14 |
1:03.72 |
0.58 |
| 2 |
Schoeneberger, Trinity K (16)
|
MAKIDS |
1:09.31 |
1:10.94 |
1.63 |
| 2 |
Jaskiewicz, Natalia K (15)
|
MAEMAC |
1:25.10 |
1:26.71 |
1.61 |
| 3 |
Krause, Laurel E (15)
|
MAPSC |
1:03.32 |
1:07.30 |
3.98 |
| 3 |
Shuryn, Alexis N (15)
|
MAEMAC |
1:07.66 |
1:11.04 |
3.38 |
| 3 |
Dupuis, Liliana N (15)
|
MAEMAC |
|
1:28.53 |
- |
|
Sheridan, Zoe R (17)
|
MAUN-P |
1:05.48 |
1:06.68 |
1.20 |