| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Blanco, Lilia R (12)
|
FGPOMP |
56.87 |
56.90 |
0.03 |
| 2 |
Herrera, Emma C (12)
|
FGJDST |
57.45 |
57.30 |
-0.15 |
| 3 |
Bailey, Ella A (12)
|
FGNPB |
56.81 |
1:01.05 |
4.24 |
| 4 |
Macaulay, Anna M (12)
|
FGJDST |
1:00.43 |
1:02.19 |
1.76 |
| 5 |
Chardon, Addison (12)
|
FGNPB |
1:01.28 |
1:02.64 |
1.36 |
| 6 |
Bok, Isabella (12)
|
FLTCSC |
1:03.18 |
1:05.01 |
1.83 |
| 7 |
Patton, Mia K (12)
|
FGUN |
|
1:05.94 |
- |
| 8 |
Amador, Caris M (12)
|
FGJDST |
1:12.34 |
1:10.95 |
-1.39 |
| 9 |
Ricardez, Maya G (11)
|
FGPOMP |
1:09.30 |
1:11.81 |
2.51 |
| 10 |
Muller, Averie C (12)
|
FGJDST |
1:19.06 |
1:12.19 |
-6.87 |
| 11 |
Swanson, Katherine V (12)
|
FGNPB |
1:10.25 |
1:12.26 |
2.01 |
| 12 |
McDonald, Mia M (12)
|
FGJDST |
1:05.54 |
1:12.46 |
6.92 |
| 13 |
Nebbeling, Charlotte L (12)
|
FGMART |
1:18.37 |
1:12.83 |
-5.54 |
| 14 |
Hidalgo Cadet, Maripaz (12)
|
FGJDST |
1:16.87 |
1:13.24 |
-3.63 |
| 15 |
Scuderi, Olivia M (12)
|
FLTCA |
1:20.41 |
1:27.53 |
7.12 |
| 16 |
Dunworth, Abigail E (12)
|
FGMART |
|
1:39.81 |
- |