| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Torres, Sofia R (12)
|
MRBAD |
31.53 |
29.36 |
-2.17 |
| 2 |
Grayson, Kelsey R (11)
|
MRBGNW |
30.65 |
29.45 |
-1.20 |
| 3 |
Mounier, Victoria (12)
|
MRBAD |
31.67 |
30.48 |
-1.19 |
| 4 |
Lovig, Natalie J (12)
|
MRBGNW |
30.97 |
30.50 |
-0.47 |
| 5 |
McGourty, Megan R (12)
|
MRBGNW |
31.61 |
30.79 |
-0.82 |
| 6 |
Cattanach, Clara (12)
|
MRBGNW |
30.55 |
31.18 |
0.63 |
| 7 |
la Fleur, Madeleine F (11)
|
MRBGNW |
32.94 |
31.82 |
-1.12 |
| 8 |
Rubin, Sally M (12)
|
MRCOND |
35.80 |
34.32 |
-1.48 |
| 9 |
King, Madison P (12)
|
MRBGNW |
37.68 |
35.73 |
-1.95 |
| 10 |
Taylor, Jordin C (12)
|
MRBAD |
41.41 |
35.78 |
-5.63 |
| 11 |
Ketterhagen, Olivia G (12)
|
MRLIAC |
36.16 |
35.80 |
-0.36 |
| 12 |
Quach, Allison (12)
|
MRLIAC |
45.00 |
38.58 |
-6.42 |
| 13 |
Tucker, Lyla B (11)
|
MRBGNW |
42.73 |
40.91 |
-1.82 |
| 14 |
Lane, Caroline G (12)
|
MRBGNW |
42.39 |
43.57 |
1.18 |