| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Grojean, Sam T (10)
|
ILBNY |
18.46 |
15.68 |
-2.78 |
| 2 |
Goar, Oliver (10)
|
ILCLY |
19.35 |
18.19 |
-1.16 |
| 3 |
Freeburg, Jonathon C (10)
|
ILHEAT |
|
18.62 |
- |
| 4 |
Medlin, Charles (10)
|
ILDANY |
18.48 |
18.64 |
0.16 |
| 5 |
Odland, Pierson A (9)
|
ILBNY |
18.84 |
18.70 |
-0.14 |
| 6 |
Goodman, Joseph (10)
|
ILCCY |
20.89 |
19.30 |
-1.59 |
| 7 |
Zirkelbach, Caleb (10)
|
ILCLY |
24.04 |
21.30 |
-2.74 |
| 8 |
Schumacher, Andrew (10)
|
ILJAXY |
25.56 |
21.92 |
-3.64 |
| 9 |
Pittman, Alex D (9)
|
ILSPY |
|
22.46 |
- |
| 10 |
Patton, Owen (9)
|
ILCLY |
23.71 |
22.77 |
-0.94 |
| 11 |
Gray, Carter (9)
|
ILCLY |
22.67 |
23.11 |
0.44 |
| 12 |
Guhlstorf, Kade (9)
|
ILCCY |
|
23.33 |
- |
| 13 |
Trimble, Seth (9)
|
ILCLY |
32.84 |
30.87 |
-1.97 |