| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Redfern, Kaitlyn A (10)
|
ADNTS |
39.11 |
35.17 |
-3.94 |
| 2 |
Walter, Emma L (10)
|
ADCPP |
37.43 |
35.58 |
-1.85 |
| 3 |
Simmons, Madigan L (10)
|
ADCPP |
44.40 |
44.28 |
-0.12 |
| 4 |
Wultsch-Fuller, Sonja E (9)
|
ADNTS |
47.15 |
46.96 |
-0.19 |
| 5 |
White, Nicole E (10)
|
ADNTS |
56.68 |
47.73 |
-8.95 |
| 6 |
Hovak, Madelyn E (10)
|
ADNHA |
1:13.54 |
48.52 |
-25.02 |
| 7 |
Holden, Alexandra E (9)
|
ADCPP |
50.71 |
52.96 |
2.25 |
| 8 |
Braun, Julia L (9)
|
ADNTS |
53.41 |
57.78 |
4.37 |
| 9 |
Davey, Mea G (10)
|
ADNTS |
|
1:03.25 |
- |
| 10 |
Matthes, Mackenzie E (10)
|
ADNTS |
|
1:06.85 |
- |
|
Coates, Carly N (9)
|
ADNTS |
|
DQ |
- |
|
Murphy, Maeve M (9)
|
ADNTS |
|
DQ |
- |