| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Zhu, Ethan (12)
|
ILLATT |
1:05.30 |
1:06.97 |
1.67 |
| 2 |
Helfrich, Gage R (11)
|
ILDCST |
1:06.67 |
1:13.11 |
6.44 |
| 3 |
Sullivan, Kevin G (12)
|
ILDCST |
1:13.90 |
1:14.07 |
0.17 |
| 4 |
Graham, Matteo R (12)
|
ILDCST |
1:25.86 |
1:20.04 |
-5.82 |
| 5 |
De La Cruz, Samuel S (12)
|
ILDCST |
1:20.44 |
1:20.88 |
0.44 |
| 6 |
Skrzypek, Alexander E (12)
|
ILDCST |
1:20.11 |
1:22.08 |
1.97 |
| 7 |
Johnson, Evan M (11)
|
ILDCST |
1:25.15 |
1:26.76 |
1.61 |
| 8 |
Orcullo, Cordell N (11)
|
ILLATT |
1:29.32 |
1:31.17 |
1.85 |
| 9 |
Brestan, Jacob S (12)
|
ILDCST |
2:05.42 |
1:33.53 |
-31.89 |
| 10 |
Spleha, Christopher M (11)
|
ILFVFY |
1:44.69 |
1:40.46 |
-4.23 |
| 11 |
Hawkins, Landon B (11)
|
ILFVFY |
|
1:43.34 |
- |
|
Gilbert, Gavin L (12)
|
ILFVFY |
|
DQ |
- |