| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Barlow, Samantha G (12)
|
ADCANA |
40.34 |
38.11 |
-2.23 |
| 2 |
Rivenburgh, Trinity Isadora (11)
|
ADSVP |
43.98 |
44.86 |
0.88 |
| 3 |
Beach, Katrina L (12)
|
ADSVP |
51.00 |
48.60 |
-2.40 |
| 4 |
Anderson, Lillian M (12)
|
ADSVP |
48.80 |
48.67 |
-0.13 |
| 5 |
Swift, Kelsey M (11)
|
ADCLRK |
58.36 |
49.94 |
-8.42 |
| 6 |
Riesenfeld, Margaret E (11)
|
ADCLRK |
1:06.33 |
50.36 |
-15.97 |
| 7 |
Litzner, Emma E (12)
|
ADSVP |
51.00 |
51.35 |
0.35 |
| 8 |
Fillion, Riley P (11)
|
ADCLRK |
52.57 |
53.45 |
0.88 |
| 9 |
More Wick, Nora A (11)
|
ADCLRK |
57.61 |
56.87 |
-0.74 |
| 10 |
More Wick, Anna N (11)
|
ADCLRK |
1:00.72 |
1:03.34 |
2.62 |
|
Johnson, Morgan E (11)
|
ADSVP |
55.00 |
NS |
- |