| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Kang, Sunny (8)
|
MRWEST |
43.52 |
41.39 |
-2.13 |
| 2 |
Johnson, Evangeline N (8)
|
MRAGUA |
43.19 |
42.29 |
-0.90 |
| 3 |
Bak, Julia (7)
|
MRQNS |
1:03.33 |
51.06 |
-12.27 |
| 4 |
Lynton, Morgan N (8)
|
MRAGUA |
1:03.89 |
57.37 |
-6.52 |
| 5 |
Wheaton, Penelope F (8)
|
MRAGUA |
1:07.03 |
57.48 |
-9.55 |
| 6 |
Speight-Ray, Allegra I (8)
|
MRAGUA |
59.38 |
59.05 |
-0.33 |
| 7 |
Suzana, Josephine (7)
|
MRAPEX |
58.96 |
59.85 |
0.89 |
| 8 |
Tan, Herschel E (7)
|
MRQNS |
1:02.58 |
1:05.62 |
3.04 |
| 9 |
Ogaki, Asa (8)
|
MRYMID |
NT |
1:07.93 |
67.93 |
| 10 |
Morrison, Makayla G (8)
|
MRWEST |
1:08.18 |
1:09.54 |
1.36 |
| 11 |
Pattanakul, Lena (7)
|
MRQNS |
1:07.18 |
1:12.11 |
4.93 |
| 12 |
Tollit, Zoe L (7)
|
MRAGUA |
1:02.00 |
DQ |
- |
| 13 |
Lee, Kaitlyn D (8)
|
MRTRI$ |
1:30.18 |
DQ |
- |
| 14 |
Dosembet, Phia Z (8)
|
MRAGUA |
1:13.85 |
DQ |
- |