| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Braun, Julia L (8)
|
ADNTS |
21.89 |
21.75 |
-0.14 |
| 2 |
Wultsch-Fuller, Sonja E (8)
|
ADNTS |
23.03 |
22.58 |
-0.45 |
| 3 |
Murphy, Maeve M (8)
|
ADNTS |
26.32 |
24.80 |
-1.52 |
| 4 |
Sekelj, Ella S (7)
|
ADNTS |
24.90 |
26.28 |
1.38 |
| 5 |
Choi, Sophia M (7)
|
ADNTS |
33.84 |
27.39 |
-6.45 |
| 6 |
Mahapatra, Amirita V (7)
|
ADNTS |
49.13 |
27.46 |
-21.67 |
| 7 |
Zebedee, Zoey A (8)
|
ADNTS |
31.37 |
27.74 |
-3.63 |
| 8 |
Coates, Carly N (8)
|
ADNTS |
30.62 |
28.31 |
-2.31 |
| 9 |
Andreescu, Alexandra M (7)
|
ADNTS |
30.20 |
29.11 |
-1.09 |
|
Blauvelt, Mabel A (7)
|
ADTBS |
31.30 |
DQ |
- |
|
Jantzi, Adalin L (7)
|
ADTBS |
|
DQ |
- |