| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Grimley, Taylor O (12)
|
MARAD |
28.51 |
29.76 |
1.25 |
| 2 |
Neilly, Hannah F (12)
|
MARAD |
29.85 |
30.46 |
0.61 |
| 3 |
Hahn, Lily (12)
|
MARAD |
29.24 |
30.78 |
1.54 |
| 4 |
Coonley, Campbell P (12)
|
MARAD |
30.24 |
31.23 |
0.99 |
| 5 |
Gibson, Madison A (12)
|
MATRI |
31.59 |
31.57 |
-0.02 |
| 6 |
Nagel, Mackenzie (11)
|
MARAD |
32.44 |
31.95 |
-0.49 |
| 7 |
Muller, Alexis M (12)
|
MAGSA |
33.61 |
32.01 |
-1.60 |
| 8 |
O'Neill, Eleanor G (12)
|
MARAD |
32.67 |
32.66 |
-0.01 |
| 9 |
Heimowitz, Miranda J (12)
|
MAGSA |
41.23 |
32.77 |
-8.46 |
| 10 |
Dougherty, Regan L (12)
|
MARAD |
|
32.83 |
- |
| 11 |
Mlodzienski, Sophia M (12)
|
MARAD |
35.95 |
36.12 |
0.17 |
| 12 |
Burke, Emma G (11)
|
MARAD |
|
36.20 |
- |
| 13 |
Garrabrant, Megan S (11)
|
MAGSA |
39.00 |
36.41 |
-2.59 |
| 14 |
Oswald, Delaney R (11)
|
MARAD |
35.25 |
36.56 |
1.31 |
| 15 |
Wendt, Louisa R (11)
|
MARAD |
35.96 |
37.80 |
1.84 |
| 16 |
Giuntoli, Anastasia S (12)
|
MARAD |
40.61 |
39.41 |
-1.20 |
| 17 |
Murray Hayden, Caroline G (12)
|
MARAD |
42.75 |
40.88 |
-1.87 |
| 18 |
Shoumer, Sarah E (12)
|
MARAD |
|
41.73 |
- |
| 19 |
Gokidi, Nidhi S (11)
|
MAGSA |
|
50.04 |
- |
|
Grasso, Monia N (11)
|
MARAD |
|
DQ |
- |
|
McKeown, Sienna M (11)
|
MATRI |
|
DQ |
- |