| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Maksimova, Aleksandra P (10)
|
MECMA |
1:17.48 |
1:14.87 |
-2.61 |
| 2 |
Stewart, Rowan C (10)
|
MEPBAY |
1:17.24 |
1:16.64 |
-0.60 |
| 3 |
Cohen, Rachael L (10)
|
MEPPSC |
1:19.96 |
1:17.94 |
-2.02 |
| 4 |
Wagstaff, Lylah S (10)
|
MEMDIY |
1:24.41 |
1:20.25 |
-4.16 |
| 5 |
Dagorova, Mina N (9)
|
MESMAC |
1:25.17 |
1:22.49 |
-2.68 |
| 6 |
Gorsuch, Katherine S (10)
|
MEPPSC |
1:26.23 |
1:22.58 |
-3.65 |
| 7 |
Saucier, Libby R (10)
|
MEUN |
1:25.69 |
1:22.94 |
-2.75 |
| 8 |
Shields, Mackenzie L (10)
|
MENYCY |
1:27.54 |
1:22.97 |
-4.57 |
| 9 |
Carleton, Charley S (9)
|
MELRSC |
1:25.13 |
1:24.21 |
-0.92 |
| 10 |
Cowing, Lolah R (10)
|
MEBYB |
1:28.23 |
1:24.87 |
-3.36 |
| 11 |
Tennent, Sara R (10)
|
MESEAL |
1:30.49 |
1:24.95 |
-5.54 |
| 12 |
Lefebvre, Anna M (10)
|
MENYCY |
1:26.27 |
1:26.27 |
0.00 |
| 13 |
Albert, Victoria S (10)
|
MELRSC |
1:27.74 |
1:26.85 |
-0.89 |
| 14 |
Weeks, Avery W (10)
|
MEPBAY |
1:31.53 |
1:28.64 |
-2.89 |
| 15 |
Maurer, Penelope H (10)
|
MENYCY |
1:31.29 |
1:30.16 |
-1.13 |
| 16 |
Fernald, Eleanor P (10)
|
MEUN |
1:30.76 |
1:31.09 |
0.33 |
|
Thomas, Hannah P (10)
|
MEYWTS |
1:36.12 |
DQ |
- |
|
Frothingham, Hannah A (10)
|
MECMA |
1:26.10 |
NS |
- |