| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Hrasko, Emma B (15)
|
NTDM |
1:12.35 |
1:11.07 |
-1.28 |
| 2 |
Tarighi, Leila (13)
|
NTDM |
1:11.25 |
1:13.07 |
1.82 |
| 3 |
Greenwood, Danielle E (14)
|
NTDM |
1:13.92 |
1:13.26 |
-0.66 |
| 4 |
Huang, Angelina (13)
|
NTDM |
1:14.20 |
1:14.62 |
0.42 |
| 5 |
Estrada, Nicole (14)
|
NTDM |
1:19.83 |
1:18.47 |
-1.36 |
| 6 |
Chang, Rosalind H (13)
|
NTDM |
1:17.90 |
1:23.47 |
5.57 |
| 7 |
Errera, Lola S (14)
|
NTDM |
1:26.19 |
1:24.11 |
-2.08 |
| 8 |
Portocalis, Corin W (13)
|
NTDM |
1:28.40 |
1:24.95 |
-3.45 |
| 9 |
Schultz, Campbell A (14)
|
NTDM |
1:27.28 |
1:30.36 |
3.08 |
| 10 |
Tone, Carys P (14)
|
NTDM |
|
1:30.73 |
- |
|
Stidham, Catherine E (16)
|
NTDM |
1:17.14 |
NS |
- |