| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Kang, Sunny (8)
|
MRWEST |
54.55 |
53.26 |
-1.29 |
| 2 |
Johnson, Evangeline N (8)
|
MRAGUA |
55.51 |
53.88 |
-1.63 |
| 3 |
Bak, Julia (7)
|
MRQNS |
1:13.33 |
57.13 |
-16.20 |
| 4 |
Ogaki, Asa (8)
|
MRYMID |
58.39 |
1:00.61 |
2.22 |
| 5 |
Speight-Ray, Allegra I (8)
|
MRAGUA |
1:04.97 |
1:01.56 |
-3.41 |
| 6 |
Suzana, Josephine (7)
|
MRAPEX |
1:04.64 |
1:03.80 |
-0.84 |
| 7 |
Flouras, Anastasia (8)
|
MRGATE |
1:02.59 |
1:03.90 |
1.31 |
| 8 |
Tollit, Zoe L (7)
|
MRAGUA |
1:11.02 |
1:05.98 |
-5.04 |
| 9 |
Wheaton, Penelope F (8)
|
MRAGUA |
1:06.57 |
1:06.26 |
-0.31 |
| 10 |
Dosembet, Phia Z (8)
|
MRAGUA |
1:11.47 |
1:06.51 |
-4.96 |
| 11 |
Tan, Herschel E (7)
|
MRQNS |
1:06.93 |
1:06.53 |
-0.40 |
| 12 |
Pattanakul, Lena (7)
|
MRQNS |
1:13.42 |
1:11.43 |
-1.99 |
| 13 |
Morrison, Makayla G (8)
|
MRWEST |
1:25.18 |
DQ |
- |
| 14 |
Donikyan, Adrina A (7)
|
MRPATS |
1:07.02 |
NS |
- |