| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Levensten, Kate E (14)
|
MASSC |
57.99 |
1:03.63 |
5.64 |
| 1 |
Levensten, Sydney J (14)
|
MASSC |
1:01.50 |
1:07.04 |
5.54 |
| 1 |
Black, Eliza (13)
|
MASSC |
1:13.39 |
1:12.01 |
-1.38 |
| 2 |
Conti, Amanda H (14)
|
MASPFD |
1:03.49 |
1:07.17 |
3.68 |
| 2 |
McIntyre, Macayla N (13)
|
MALMOR |
|
1:13.52 |
- |
| 3 |
Kim, Minji (13)
|
MASSC |
1:08.04 |
1:09.01 |
0.97 |
| 3 |
Russ, Madeline (13)
|
MACBR |
1:15.91 |
1:14.76 |
-1.15 |
| 4 |
Reteneller, Riley T (14)
|
MACBST |
1:05.66 |
1:09.19 |
3.53 |
| 4 |
Kennedy, Ava M (13)
|
MABSC |
1:20.13 |
1:18.99 |
-1.14 |
| 5 |
Mitchell, Victoria S (13)
|
MASSC |
1:06.71 |
1:09.31 |
2.60 |
| 5 |
Williams, Emma V (13)
|
MACBST |
1:23.03 |
1:19.49 |
-3.54 |
| 6 |
Thorning, Jillian R (14)
|
MACBR |
1:04.67 |
1:09.75 |
5.08 |
| 6 |
Rosinski, Samantha (14)
|
MACBST |
1:27.19 |
1:20.20 |
-6.99 |
| 7 |
Ruch, Elizabeth P (13)
|
MACBST |
1:10.86 |
1:10.68 |
-0.18 |
| 7 |
Pyatigorsky, Claudia E (13)
|
MALMOR |
|
1:23.25 |
- |
| 8 |
Hedlund, Kate C (13)
|
MASSC |
|
1:11.26 |
- |
|
Ciamaichelo, Clara N (13)
|
MALMOR |
1:31.47 |
NS |
- |