| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Reasons, Kaitlyn E (8)
|
MARAD |
1:39.88 |
1:37.70 |
-2.18 |
| 2 |
Makarichev, Isabella A (8)
|
MANPAC |
|
1:43.44 |
- |
| 3 |
Taylor, Talia A (8)
|
MALMOR |
1:53.50 |
1:44.45 |
-9.05 |
| 4 |
Manser, Eden M (8)
|
MAUDAC |
1:46.99 |
1:46.93 |
-0.06 |
| 5 |
Duddy, Caroline G (8)
|
MAEAAC |
|
1:48.37 |
- |
| 6 |
Quinones, Charlotte P (8)
|
MAUN-R |
|
1:49.19 |
- |
| 7 |
Simko, Brooke A (8)
|
MAGRA |
1:49.74 |
1:49.62 |
-0.12 |
| 8 |
Henry, Sidney E (8)
|
MAGRA |
1:52.04 |
1:49.83 |
-2.21 |
| 9 |
Chang, Isabella Y (8)
|
MARAD |
|
1:55.16 |
- |
| 10 |
Wang, Grace Y (8)
|
MAFCA |
2:20.38 |
2:02.08 |
-18.30 |
| 11 |
Ernest, Mackenzie T (8)
|
MAGRA |
2:13.33 |
2:27.49 |
14.16 |
|
Boden, Margaret M (8)
|
MAGRA |
|
DQ |
- |
|
Clegg, Caroline G (8)
|
MARAD |
|
DQ |
- |
|
Baughman, Lillian G (8)
|
MAUDAC |
1:35.50 |
DQ |
- |