| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Grojean, Sam T (10)
|
ILBNY |
20.02 |
18.08 |
-1.94 |
| 2 |
Fahnestock, Erik L (9)
|
ILHEAT |
19.75 |
18.39 |
-1.36 |
| 3 |
Goar, Oliver (10)
|
ILCLY |
21.42 |
19.46 |
-1.96 |
| 4 |
Odland, Pierson A (9)
|
ILBNY |
20.45 |
20.04 |
-0.41 |
| 5 |
Medlin, Charles (10)
|
ILDANY |
25.32 |
21.17 |
-4.15 |
| 6 |
Zirkelbach, Caleb (10)
|
ILCLY |
23.41 |
21.47 |
-1.94 |
| 7 |
Freeburg, Jonathon C (10)
|
ILHEAT |
|
22.60 |
- |
| 8 |
Hunt, Ty J (9)
|
ILHEAT |
24.51 |
23.65 |
-0.86 |
| 9 |
Guhlstorf, Kade (9)
|
ILCCY |
|
23.74 |
- |
| 10 |
Gray, Carter (9)
|
ILCLY |
26.54 |
24.66 |
-1.88 |
| 11 |
Patton, Owen (9)
|
ILCLY |
25.57 |
24.88 |
-0.69 |
| 12 |
Schumacher, Andrew (10)
|
ILJAXY |
28.98 |
25.53 |
-3.45 |
| 13 |
Pittman, Alex D (9)
|
ILSPY |
|
26.89 |
- |
|
Trimble, Seth (9)
|
ILCLY |
|
DQ |
- |