| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Preski, Kendra A (17)
|
ILSPY |
51.95 |
54.82 |
2.87 |
| 2 |
Van Berkom, Megan M (16)
|
ILSPY |
54.36 |
55.43 |
1.07 |
| 3 |
DeSalle, Elizabeth G (16)
|
ILSPY |
54.78 |
58.12 |
3.34 |
| 4 |
Giganti, Giovanna (16)
|
ILSPY |
56.61 |
58.66 |
2.05 |
| 5 |
Yockey, Mary C (16)
|
ILSPY |
57.41 |
59.20 |
1.79 |
| 6 |
Uhe, Liesel J (15)
|
ILSPY |
1:03.63 |
1:02.41 |
-1.22 |
| 7 |
Ehmen, Peri J (18)
|
ILSPY |
57.95 |
1:03.02 |
5.07 |
| 8 |
Copp, Kyra E (16)
|
ILSPY |
1:01.11 |
1:03.62 |
2.51 |
| 9 |
Gawedzinski, Emily A (15)
|
ILSPY |
58.24 |
1:04.28 |
6.04 |
| 10 |
Romanotto, Lia B (15)
|
ILSPY |
1:02.64 |
1:05.09 |
2.45 |
| 11 |
Fulgenzi, Cecilia L (16)
|
ILSPY |
1:02.66 |
1:07.30 |
4.64 |
| 12 |
McMillan, Kylie M (15)
|
ILSPY |
1:05.32 |
1:08.43 |
3.11 |