| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Kneller, Jude H (17)
|
ILSPY |
52.47 |
50.81 |
-1.66 |
| 2 |
Knox, Matthew J (17)
|
ILSPY |
51.54 |
50.92 |
-0.62 |
| 3 |
Hohm, Spencer A (18)
|
ILSPY |
50.86 |
51.44 |
0.58 |
| 4 |
Haschemeyer, Madison J (17)
|
ILSPY |
54.71 |
54.27 |
-0.44 |
| 5 |
Rivera, Haley A (18)
|
ILSPY |
57.32 |
54.71 |
-2.61 |
| 6 |
Preski, Kendra A (16)
|
ILSPY |
56.80 |
55.47 |
-1.33 |
| 7 |
Milling, Adam D (15)
|
ILSPY |
53.42 |
55.68 |
2.26 |
| 8 |
Radloff, Sydney N (17)
|
ILSPY |
56.26 |
55.77 |
-0.49 |
| 9 |
Van Berkom, Megan M (16)
|
ILSPY |
56.60 |
57.44 |
0.84 |
| 10 |
Sinks, Ashleigh E (17)
|
ILSPY |
56.33 |
57.66 |
1.33 |
| 11 |
DeSalle, Elizabeth G (16)
|
ILSPY |
58.06 |
58.44 |
0.38 |
| 12 |
Fierstos, Abby B (17)
|
ILSPY |
59.84 |
58.93 |
-0.91 |
| 13 |
Yockey, Mary C (15)
|
ILSPY |
1:00.80 |
58.98 |
-1.82 |
| 14 |
Preski, Josie L (18)
|
ILSPY |
58.79 |
59.50 |
0.71 |
| 15 |
Hamrick, Grace E (18)
|
ILSPY |
1:01.79 |
1:00.53 |
-1.26 |
| 16 |
Milliman, Jack W (15)
|
ILSPY |
|
1:00.74 |
- |
| 17 |
Carlson, Emily A (15)
|
ILSPY |
1:01.56 |
1:01.86 |
0.30 |
| 18 |
Giganti, Giovanna (16)
|
ILSPY |
1:01.58 |
1:02.26 |
0.68 |
| 19 |
Ehmen, Peri J (17)
|
ILSPY |
1:04.76 |
1:04.34 |
-0.42 |
| 20 |
Fulgenzi, Cecilia L (15)
|
ILSPY |
|
1:06.84 |
- |