| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Rothberg, Mina E (15)
|
MASPFD |
1:03.74 |
1:03.98 |
0.24 |
| 1 |
Bailey, Elishka S (16)
|
MABSC |
55.95 |
57.01 |
1.06 |
| 1 |
Lorei, Violet C (15)
|
MABSC |
56.70 |
58.91 |
2.21 |
| 2 |
Asuncion, Sofia A (15)
|
MAWCAC |
1:02.57 |
1:04.69 |
2.12 |
| 2 |
Agostini, Natalie T (17)
|
MABSC |
58.84 |
59.57 |
0.73 |
| 3 |
Asuncion, Julianna O (17)
|
MAWCAC |
1:03.72 |
1:04.84 |
1.12 |
| 3 |
Becker, Mandy C (16)
|
MABSC |
56.99 |
59.72 |
2.73 |
| 4 |
Brooks, Chloe L (15)
|
MAEAAC |
1:07.16 |
1:06.04 |
-1.12 |
| 4 |
DiGregorio, Abigail N (15)
|
MACBST |
56.64 |
59.96 |
3.32 |
| 5 |
Reteneller, Riley T (15)
|
MACBST |
57.31 |
1:00.11 |
2.80 |
| 5 |
Kelly, Ava L (15)
|
MABSC |
1:05.28 |
1:08.34 |
3.06 |
| 6 |
Lerner, Isabella K (15)
|
MAGSA |
1:00.42 |
1:01.15 |
0.73 |
| 6 |
Aloi, Beatrice (15)
|
MABSC |
1:06.18 |
1:11.09 |
4.91 |
| 7 |
Gounder, Shreeya (15)
|
MAGSA |
59.77 |
1:01.43 |
1.66 |
| 8 |
Knoop, Autumn E (15)
|
MAGSA |
59.66 |
1:01.66 |
2.00 |
| 9 |
Patrick, Madeline A (16)
|
MATHY |
1:01.28 |
1:02.01 |
0.73 |
| 10 |
Gale, Morgan A (17)
|
MABSC |
1:00.48 |
1:02.24 |
1.76 |
| 11 |
Sabalaske, Emma C (15)
|
MAGSA |
59.56 |
1:02.81 |
3.25 |
|
Taddeo, Courtney M (15)
|
MALMAC |
1:07.92 |
NS |
- |