| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Flouras, Anastasia (9)
|
MRQNS |
46.22 |
42.51 |
-3.71 |
| 2 |
Tenkman, Claire C (10)
|
MRHYB |
39.88 |
42.81 |
2.93 |
| 3 |
Soulantzos, Josephine M (11)
|
MRQNS |
46.97 |
45.06 |
-1.91 |
| 4 |
Chen, Vivien E (9)
|
MRRA |
46.51 |
46.15 |
-0.36 |
| 5 |
O'Sullivan, Brinan K (9)
|
MRUN |
52.22 |
47.80 |
-4.42 |
| 6 |
Bethke, Elisa M (10)
|
MRLGAC |
51.34 |
48.07 |
-3.27 |
| 7 |
Huang, Isabell (10)
|
MRFLY |
47.05 |
48.71 |
1.66 |
| 8 |
Chang, Amelia K (9)
|
MRFLY |
|
50.26 |
- |
| 9 |
Jones- Cimini, Margaret (9)
|
MRRED |
49.28 |
50.98 |
1.70 |
| 10 |
Trinidad, Chelanny A (10)
|
MRRED |
50.11 |
52.37 |
2.26 |
| 11 |
Pattanakul, Lena (9)
|
MRQNS |
54.85 |
54.10 |
-0.75 |
| 12 |
Quach, Allison (10)
|
MRFLY |
54.73 |
54.44 |
-0.29 |
| 13 |
Qiu, Mia (9)
|
MRFLY |
56.89 |
55.84 |
-1.05 |
| 14 |
Katzmaier, Anna E (10)
|
MRHYB |
1:02.00 |
55.89 |
-6.11 |
| 15 |
Ostuni, Lia P (9)
|
MRHYB |
|
56.80 |
- |
| 16 |
Rojas, Maria V (9)
|
MRRED |
58.64 |
58.21 |
-0.43 |
| 17 |
Braunsdorf, Kara J (9)
|
MRRA |
1:15.00 |
1:01.48 |
-13.52 |
| 18 |
Charalambous, Olivia P (9)
|
MRHYB |
1:06.86 |
1:03.91 |
-2.95 |
| 19 |
Thai, Kallie L (9)
|
MRQNS |
|
1:09.58 |
- |
| 20 |
Marricco, Liliana E (9)
|
MRRA |
1:00.00 |
1:09.80 |
9.80 |
| 21 |
Virk, Sanaa (9)
|
MRFLY |
|
1:21.61 |
- |
|
Stanforth, Cedar E (9)
|
MRHYB |
|
DQ |
- |
|
Reilly, Lily (9)
|
MRHYB |
1:15.43 |
DQ |
- |
|
Murphy, Emma (10)
|
MRHYB |
|
DQ |
- |
|
Gasper, Maya S (9)
|
MRRED |
57.33 |
NS |
- |
|
Sandoval, Joselyn (10)
|
MRRED |
50.09 |
NS |
- |