| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Stevens, Molly N (16)
|
MASSC |
59.67 |
1:04.17 |
4.50 |
| 1 |
Hamilton, Grace A (17)
|
MACBST |
1:10.00 |
1:09.66 |
-0.34 |
| 1 |
Paglia, Sydney J (17)
|
MASSC |
55.73 |
59.94 |
4.21 |
| 2 |
Brandbergh, Eleanor J (17)
|
MACBST |
56.06 |
1:00.87 |
4.81 |
| 2 |
Vandeveer, Camille C (16)
|
MABSC |
1:03.90 |
1:04.85 |
0.95 |
| 2 |
Miksa, Leah (17)
|
MACBR |
1:07.15 |
1:09.90 |
2.75 |
| 3 |
Barber, Avery S (16)
|
MASSC |
1:01.61 |
1:01.96 |
0.35 |
| 3 |
Becker, Samantha (16)
|
MALMOR |
1:04.11 |
1:05.48 |
1.37 |
| 3 |
Paglia, Sophia B (15)
|
MASSC |
1:05.93 |
1:10.29 |
4.36 |
| 4 |
Bailey, Elishka S (16)
|
MABSC |
59.99 |
1:02.44 |
2.45 |
| 4 |
Jones, Alexandra S (17)
|
MASSC |
1:04.51 |
1:06.59 |
2.08 |
| 4 |
Jones, Laura G (17)
|
MASSC |
1:07.43 |
1:11.66 |
4.23 |
| 5 |
Cantoral, Gina L (17)
|
MALMOR |
1:02.66 |
1:02.57 |
-0.09 |
| 5 |
Gale, Morgan A (16)
|
MABSC |
1:04.14 |
1:07.00 |
2.86 |
| 5 |
Holtsberg, Cathryn F (15)
|
MASSC |
1:10.05 |
1:11.85 |
1.80 |
| 6 |
Hofmann, Lina A (15)
|
MACBR |
1:02.66 |
1:02.64 |
-0.02 |
| 6 |
Fernandes, Teresa R (16)
|
MALMOR |
1:03.19 |
1:07.06 |
3.87 |
| 6 |
Kilbride, Quincey M (15)
|
MALMOR |
1:12.94 |
1:12.20 |
-0.74 |
| 7 |
Meyers, Isabella M (15)
|
MALMOR |
1:17.25 |
1:12.60 |
-4.65 |
| 8 |
Volokhonsky, Emma (16)
|
MALMOR |
1:16.12 |
1:12.69 |
-3.43 |
| 9 |
Kelly, Ava L (15)
|
MABSC |
1:17.20 |
1:16.14 |
-1.06 |
| 10 |
Girasole-Culhane, Alexa I (15)
|
MAFSA |
1:11.11 |
1:16.23 |
5.12 |
| 11 |
Petrakis, Nyah M (15)
|
MACBR |
1:13.90 |
1:16.36 |
2.46 |
| 12 |
Girasole-Culhane, Courtnee E (15)
|
MAFSA |
1:30.20 |
1:16.58 |
-13.62 |
| 13 |
Belardo, Lauren L (17)
|
MATHY |
1:15.01 |
1:21.02 |
6.01 |
| 14 |
Aloi, Beatrice (15)
|
MABSC |
1:21.93 |
1:22.86 |
0.93 |
| 15 |
David, Summerlynn (17)
|
MAFSA |
1:21.68 |
1:28.36 |
6.68 |