| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Browne, Virginia G (13)
|
VACA-Y |
57.46 |
59.57 |
2.11 |
| 2 |
Shopbell, Ava M (14)
|
VALY |
1:00.15 |
1:01.76 |
1.61 |
| 3 |
Warren, Sarah J (14)
|
VALY |
1:00.88 |
1:03.37 |
2.49 |
| 4 |
Meyer, Amelie G (14)
|
VACA-Y |
59.77 |
1:05.49 |
5.72 |
| 5 |
Holt, Ann-Margaret E (14)
|
VALY |
1:05.60 |
1:07.30 |
1.70 |
| 6 |
Woodruff, Taylor A (13)
|
VALY |
1:07.21 |
1:07.71 |
0.50 |
| 7 |
Loura, Elaina R (14)
|
VACA-Y |
1:07.02 |
1:08.23 |
1.21 |
| 8 |
Wang, Sophie W (13)
|
VACA-Y |
1:05.61 |
1:10.35 |
4.74 |
| 9 |
Judy, Olivia C (14)
|
VALY |
1:09.98 |
1:12.88 |
2.90 |
| 10 |
Hitt, Lucienne-Louise H (13)
|
VACA-Y |
1:09.34 |
1:14.12 |
4.78 |
| 11 |
King, Kathleen M (13)
|
VALY |
1:22.43 |
1:15.37 |
-7.06 |
| 12 |
Compton, Ada C (13)
|
VALY |
|
1:36.92 |
- |
| 13 |
Ayers, Sydney G (13)
|
VALY |
1:34.58 |
1:43.75 |
9.17 |