| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Williams, Tommy (17)
|
ILKNCY |
54.97 |
54.71 |
-0.26 |
| 2 |
Tolppanen, Benjamin L (16)
|
ISSAMY |
58.28 |
58.31 |
0.03 |
| 3 |
Allen, Logan T (14)
|
ILSPY |
59.36 |
58.38 |
-0.98 |
| 4 |
Enlow, Michael J (16)
|
ILSPY |
1:01.34 |
59.20 |
-2.14 |
| 5 |
Lee, Josh (14)
|
ILKNCY |
59.00 |
59.84 |
0.84 |
| 6 |
Freeburg, Jonathan C (11)
|
ILHEAT |
1:05.67 |
1:03.42 |
-2.25 |
| 7 |
Warren, Jackson (12)
|
ILKNCY |
1:05.74 |
1:04.60 |
-1.14 |
| 8 |
Evans, Jack W (11)
|
ILSPY |
1:04.78 |
1:05.02 |
0.24 |
| 9 |
Gilmore, Sullivan (11)
|
ILSPY |
1:05.57 |
1:05.42 |
-0.15 |
| 10 |
Zeino, Kareem (10)
|
ILSPY |
1:07.69 |
1:07.79 |
0.10 |
| 11 |
Strong, Blake A (13)
|
ILSPY |
1:15.85 |
1:09.37 |
-6.48 |
| 12 |
Overman, James R (11)
|
ILSPY |
1:12.59 |
1:13.18 |
0.59 |
| 13 |
McGath, Jacob A (9)
|
ILMCDN |
1:29.58 |
1:37.19 |
7.61 |
| 14 |
Osborn, Payne Z (9)
|
ILSPY |
1:40.04 |
1:37.59 |
-2.45 |