| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Trobiano, Nicolette P (12)
|
MRFA |
1:18.98 |
1:18.39 |
-0.59 |
| 1 |
Wigington, Scarlett G (12)
|
MRTVSC |
1:19.84 |
1:20.45 |
0.61 |
| 2 |
Park, Esther Y (12)
|
MRTS |
1:20.14 |
1:20.57 |
0.43 |
| 2 |
Melengic, Anna A (12)
|
MRWISC |
1:27.96 |
1:28.82 |
0.86 |
| 3 |
Baynon, Lily M (12)
|
MRFA |
1:21.83 |
1:21.16 |
-0.67 |
| 3 |
Rochford, Juliana G (12)
|
MRIA |
1:28.11 |
1:29.41 |
1.30 |
| 4 |
Casella, Jayla B (12)
|
MRTVSC |
1:26.72 |
1:21.25 |
-5.47 |
| 5 |
Mcmahon, Reilly E (12)
|
MRIA |
1:20.74 |
1:22.49 |
1.75 |
| 6 |
Wallace, Evangeline R (12)
|
MRSSC |
1:25.40 |
1:22.66 |
-2.74 |
| 7 |
Naude, Amber S (12)
|
MRSSC |
1:22.27 |
1:22.97 |
0.70 |
| 8 |
Fischer, Chaya (12)
|
MRUN |
1:20.90 |
1:23.13 |
2.23 |
| 9 |
Marotta, Antonia K (12)
|
MRHAA |
1:22.11 |
1:23.17 |
1.06 |
| 10 |
Meliere, Lily M (12)
|
MRIA |
1:19.38 |
1:23.82 |
4.44 |
| 11 |
Rhee, Monica (12)
|
MRLIAC |
1:28.23 |
1:24.21 |
-4.02 |
| 12 |
Johnson, Ella (12)
|
MRIA |
1:28.22 |
1:24.84 |
-3.38 |
| 13 |
Reda, Isabella M (12)
|
MRLIAC |
1:22.58 |
1:25.32 |
2.74 |
| 14 |
Rizzo, Vanessa R (12)
|
MREHY |
1:26.75 |
1:25.98 |
-0.77 |
| 15 |
Stertsios, Martha M (12)
|
MRLIAC |
1:26.37 |
1:26.37 |
0.00 |
| 16 |
Kuo, Leila Y (12)
|
MRLIAC |
1:26.23 |
1:26.83 |
0.60 |
| 17 |
King, Katherine (12)
|
MRHAA |
1:26.53 |
1:27.73 |
1.20 |