| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Paez, Isabella S (15)
|
MRBGNW |
58.24 |
1:02.00 |
3.76 |
| 2 |
Reyna, Margaux (18)
|
MRWEST |
1:02.46 |
1:04.82 |
2.36 |
| 3 |
Rocco, Emily A (16)
|
MRBGNW |
59.25 |
1:08.72 |
9.47 |
| 4 |
Punnoose, Ann j (15)
|
MRYMID |
1:04.82 |
1:08.74 |
3.92 |
| 5 |
Lopez, Isabella S (16)
|
MRYMID |
1:05.23 |
1:10.65 |
5.42 |
| 6 |
Blakeslee, Kaitlin P (16)
|
MRBGNW |
1:11.59 |
1:10.86 |
-0.73 |
| 7 |
Wong, Kelly M (15)
|
MRUN |
|
1:12.25 |
- |
| 8 |
Patterson, Clare M (15)
|
MRBGNW |
1:10.54 |
1:12.64 |
2.10 |
| 9 |
Ford, Sydney E (18)
|
MRBGNW |
1:04.64 |
1:13.04 |
8.40 |
| 10 |
Aguilar, Guadalupe (16)
|
MRUN |
1:16.13 |
1:16.72 |
0.59 |
| 11 |
Tsang, Jolene A (17)
|
MRUN |
1:18.93 |
1:18.42 |
-0.51 |
| 12 |
Greenstein, Jessie B (16)
|
MRBGNW |
1:17.04 |
1:23.89 |
6.85 |
|
Pierro, Alyssa A (15)
|
MRUN |
1:39.98 |
NS |
- |