| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Lustria, Fay Marie S (13)
|
ORTHSC |
57.87 |
57.74 |
-0.13 |
| 2 |
Devanagondi, Neeyati (14)
|
PCDACA |
59.01 |
59.17 |
0.16 |
| 3 |
Kingsbury, Natalie I (14)
|
ORHEAT |
1:02.52 |
1:00.25 |
-2.27 |
| 4 |
Shroufe, Jane A (14)
|
OROCST |
1:00.11 |
1:00.86 |
0.75 |
| 5 |
Krause, Makena M (14)
|
ORHEAT |
1:02.29 |
1:01.76 |
-0.53 |
| 6 |
Andersen, Olivia S (13)
|
ORLOSC |
1:03.18 |
1:02.29 |
-0.89 |
| 7 |
Chun, Audrey S (14)
|
ORLOSC |
1:02.20 |
1:02.46 |
0.26 |
| 8 |
Choi, Jane (13)
|
PCDACA |
1:02.44 |
1:03.60 |
1.16 |
| 9 |
Katayama-Stall, Quinn T (14)
|
ORTHSC |
1:03.08 |
1:03.72 |
0.64 |
| 10 |
Marzec, Ella L (14)
|
PNWAVE |
1:03.61 |
1:04.20 |
0.59 |