| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Lowery, Brian D (13)
|
ILVY |
55.31 |
54.34 |
-0.97 |
| 2 |
Graham, Matteo R (13)
|
ILDCST |
56.55 |
58.20 |
1.65 |
| 3 |
Sullivan, Kevin G (14)
|
ILDCST |
58.92 |
58.58 |
-0.34 |
| 4 |
Harrelson, Evan R (14)
|
ILDCST |
1:01.19 |
59.36 |
-1.83 |
| 5 |
Campbell, Timothy I (14)
|
ILFVFY |
1:00.53 |
59.71 |
-0.82 |
| 6 |
Skrzypek, Alexander E (13)
|
ILDCST |
1:01.46 |
1:02.01 |
0.55 |
| 7 |
Gilbert, Gavin L (14)
|
ILFVFY |
1:06.00 |
1:02.89 |
-3.11 |
| 8 |
Uhlenhopp, Mattson H (14)
|
ILFVFY |
1:04.78 |
1:03.49 |
-1.29 |
| 9 |
Harrelson, Sean A (13)
|
ILDCST |
1:06.54 |
1:04.13 |
-2.41 |
| 10 |
Svarc, Derek (14)
|
ILRAYS |
|
1:10.02 |
- |
| 11 |
Brunson, Kairo (14)
|
ILRAYS |
1:10.44 |
1:12.85 |
2.41 |
| 12 |
Crawford, Owen (13)
|
ILRAYS |
|
1:24.60 |
- |
| 13 |
Brunson, Deangello (13)
|
ILRAYS |
2:05.39 |
1:49.55 |
-15.84 |