| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Scott, Morgan E (17)
|
MACBST |
54.45 |
58.13 |
3.68 |
| 2 |
Paglia, Sydney J (15)
|
MASSC |
56.66 |
1:01.10 |
4.44 |
| 3 |
Curtis, Stephanie A (16)
|
MACBST |
1:01.73 |
1:01.50 |
-0.23 |
| 4 |
Brandbergh, Eleanor J (15)
|
MACBST |
1:00.66 |
1:02.00 |
1.34 |
| 5 |
Liu, Chelsey (15)
|
MASSC |
1:00.13 |
1:02.48 |
2.35 |
| 6 |
Axler, Elizabeth M (16)
|
MACBFY |
1:04.79 |
1:02.55 |
-2.24 |
| 7 |
Kellner, Isabella I (15)
|
MACBST |
1:01.85 |
1:02.80 |
0.95 |
| 8 |
Mottel, Lauren G (16)
|
MASSC |
59.63 |
1:03.46 |
3.83 |
| 9 |
Townend, Lucy M (17)
|
MASSC |
1:00.08 |
1:04.52 |
4.44 |
| 10 |
Beno, Anna M (17)
|
MACBST |
59.82 |
1:04.58 |
4.76 |
| 11 |
Cassidy, Caroline R (18)
|
MACBST |
1:02.45 |
1:04.88 |
2.43 |
| 12 |
Brasch, Kirsten E (18)
|
MACBST |
1:02.46 |
1:05.37 |
2.91 |
| 13 |
Yim, Natalie S (15)
|
MACBST |
1:06.65 |
1:05.97 |
-0.68 |
| 14 |
Goroshko, Julia (16)
|
MACBST |
1:04.26 |
1:06.93 |
2.67 |
| 15 |
Rounsavill, Jacqueline M (17)
|
MAGSA |
1:06.37 |
1:07.17 |
0.80 |
| 16 |
Young, Margaret L (15)
|
MACBST |
|
1:08.52 |
- |
| 17 |
Schwedler, Joy R (15)
|
MAUN-Y |
1:10.44 |
1:08.54 |
-1.90 |
| 18 |
Moore, Audra K (16)
|
MACBST |
1:07.15 |
1:08.88 |
1.73 |
| 19 |
Jones, Alexandra S (15)
|
MASSC |
1:11.49 |
1:10.76 |
-0.73 |
| 20 |
Hamilton, Grace A (15)
|
MACBST |
1:11.78 |
1:12.03 |
0.25 |
| 21 |
Valdepenas-Mellor, Zoe (18)
|
MAGSA |
1:05.23 |
1:12.90 |
7.67 |
| 22 |
Allison, Jennifer L (15)
|
MAHHAA |
|
1:26.56 |
- |
|
Mosco, Isabella (15)
|
MACORE |
1:11.92 |
DQ |
- |