| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Preski, Kendra A (17)
|
ILSPY |
57.94 |
1:01.09 |
3.15 |
| 2 |
Van Berkom, Megan M (16)
|
ILSPY |
1:00.88 |
1:01.77 |
0.89 |
| 3 |
Uhe, Liesel J (15)
|
ILSPY |
1:07.18 |
1:06.78 |
-0.40 |
| 4 |
Giganti, Giovanna (16)
|
ILSPY |
1:03.34 |
1:06.96 |
3.62 |
| 5 |
DeSalle, Elizabeth G (16)
|
ILSPY |
1:03.39 |
1:07.56 |
4.17 |
| 6 |
Yockey, Mary C (16)
|
ILSPY |
1:05.80 |
1:07.93 |
2.13 |
| 7 |
Ehmen, Peri J (18)
|
ILSPY |
1:07.81 |
1:12.47 |
4.66 |
| 8 |
Romanotto, Lia B (15)
|
ILSPY |
1:09.35 |
1:15.54 |
6.19 |
| 9 |
Gawedzinski, Emily A (15)
|
ILSPY |
1:06.61 |
1:15.59 |
8.98 |
| 10 |
Fulgenzi, Cecilia L (16)
|
ILSPY |
1:10.76 |
1:16.76 |
6.00 |
| 11 |
McMillan, Kylie M (15)
|
ILSPY |
1:12.98 |
1:20.00 |
7.02 |
| 12 |
Copp, Kyra E (16)
|
ILSPY |
1:14.69 |
1:20.85 |
6.16 |