| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Torres, Aidan E (11)
|
ILFVFY |
34.94 |
36.03 |
1.09 |
| 2 |
Uhlenhopp, Mattson H (12)
|
ILFVFY |
42.14 |
37.17 |
-4.97 |
| 3 |
Orlando, James S (11)
|
ILJETS |
40.45 |
41.06 |
0.61 |
| 4 |
Piazza, Samuel J (11)
|
ILPALA |
43.22 |
43.98 |
0.76 |
| 5 |
Thill, Logan (11)
|
ILJETS |
48.85 |
45.93 |
-2.92 |
| 6 |
Arett, Ryan N (12)
|
ILPALA |
|
49.71 |
- |
| 7 |
Smith, Cameron W (12)
|
ILFVFY |
1:10.15 |
57.05 |
-13.10 |
| 8 |
VanderGiessen, Colin J (12)
|
ILPALA |
|
57.18 |
- |
| 9 |
Mika, Pierson R (11)
|
ILJETS |
46.26 |
59.24 |
12.98 |
|
Ayala, Alejandro * (11)
|
ILFVFY |
|
DQ |
- |
|
Stephens, Tristan R (11)
|
ILJETS |
|
DQ |
- |