| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Vergara, Viviana E (14)
|
MACBST |
1:01.12 |
1:00.41 |
-0.71 |
| 1 |
Olhasso, Miranda p (14)
|
MAPENN |
1:06.71 |
1:07.68 |
0.97 |
| 1 |
Lerner, Isabella K (14)
|
MATHY |
1:12.09 |
1:11.44 |
-0.65 |
| 2 |
Levensten, Kate E (13)
|
MASSC |
59.48 |
1:01.13 |
1.65 |
| 2 |
Patrick, Madeline A (14)
|
MATHY |
1:07.74 |
1:08.07 |
0.33 |
| 2 |
Vangen, Ella (13)
|
MASPFD |
1:18.67 |
1:17.52 |
-1.15 |
| 3 |
Eruslanova, Ekaterina (13)
|
MASSC |
1:00.71 |
1:01.93 |
1.22 |
| 3 |
Burke, Bryana N (14)
|
MACBST |
1:07.50 |
1:09.74 |
2.24 |
| 3 |
Ostanina, Marina D (14)
|
MATHY |
1:19.70 |
1:18.80 |
-0.90 |
| 4 |
Lunn, Emma K (13)
|
MASSC |
1:00.98 |
1:03.02 |
2.04 |
| 4 |
Krieg, Sylvia C (13)
|
MASSC |
1:10.88 |
1:10.01 |
-0.87 |
| 4 |
Rothberg, Mina E (13)
|
MASPFD |
|
1:19.01 |
- |
| 5 |
Levensten, Sydney J (13)
|
MASSC |
1:01.50 |
1:03.81 |
2.31 |
| 5 |
Hwan, Melanie J (14)
|
MALMOR |
1:10.55 |
1:10.19 |
-0.36 |
| 5 |
Meyers, Isabella M (14)
|
MALMOR |
|
1:19.11 |
- |
| 6 |
Shifflett, Ella M (14)
|
MASSC |
1:05.25 |
1:04.85 |
-0.40 |
| 6 |
Gross, Molly A (13)
|
MACBFY |
1:17.68 |
1:19.91 |
2.23 |
| 7 |
Conti, Amanda H (13)
|
MASPFD |
1:04.44 |
1:05.75 |
1.31 |
| 7 |
Soboleva, Elizaveta A (13)
|
MAUN |
|
1:21.55 |
- |
| 8 |
Rosinski, Samantha (13)
|
MACBST |
|
1:31.04 |
- |
|
Fronzeo, Maddy E (13)
|
MACBFY |
|
DQ |
- |
|
Brennan, Molly C (13)
|
MASPFD |
1:11.78 |
NS |
- |
|
Ether, Ashley (13)
|
MALIFE |
2:14.99 |
NS |
- |
|
Dougherty, Kaitlyn M (13)
|
MAUNCB |
|
NS |
- |