| Lane | Athlete | Team | Seed |
|---|---|---|---|
| 1 | DANIELS-HENNING, Leo | Lincoln (Chicago) | NT |
| 2 | MANESS, Gavin | Francis W. Parker | NT |
| 3 | POMIAN, Gabriel | Whitney Young Academic Center | NT |
| 4 | BUCHAR, Zachary | Lane Tech Academic Center | NT |
| 5 | GERSTUNG, Leo | Catherine Cook | NT |
| 6 | LEE, Micah | Alexander Graham Bell Elementary | NT |
| 7 | CONSTANTINE, Santiago | Lane Tech Academic Center | NT |
| 8 | DUDEK, Henry | Catherine Cook | NT |
| 9 | KOZLOWSKI, Jake | St. Helen | NT |
| Lane | Athlete | Team | Seed |
|---|---|---|---|
| 1 | CHANG, Daniel | Francis W. Parker | NT |
| 2 | OPHUS, Jonathan | Whitney Young Academic Center | NT |
| 3 | SLAVIN, William | Lincoln (Chicago) | NT |
| 4 | BORUCKI, Joseph | Taft | NT |
| 5 | DING, Ethan | Lane Tech Academic Center | NT |
| 6 | 7, LANGSTON ELLIS | Whitney Young Academic Center | NT |
| 7 | BRYANT, Bode | Alexander Graham Bell Elementary | NT |
| 8 | MALONEY, Finn | Whitney Young Academic Center | NT |
| 9 | FRIAS, Yuri | Whitney Young Academic Center | NT |
| 10 | DEUTSCH, Ari | Francis W. Parker | NT |
| 11 | ISRAEL, Benjamin | Francis W. Parker | NT |
| Lane | Athlete | Team | Seed |
|---|---|---|---|
| 1 | HOWARD, Oliver | Pope John XXIII | 1:06.48 |
| 2 | CIRILLO, Rocco | Immaculate Conception North Park | 1:12.16 |
| 3 | ZELLER, Owen | Francis W. Parker | 1:13.91 |
| 4 | GOLDMAN, Aragon | Francis W. Parker | 1:14.46 |
| 5 | GALLAGHER, Ethan | Chicago Trailblazers | 1:29.00 |
| 6 | SZUKALA, Max | Taft | NT |
| 7 | OLSON, Bruno | Lane Tech Academic Center | NT |
| 8 | THARIN, Jackson | Francis W. Parker | NT |
| 9 | MARTELL, Daniel | Taft | NT |
| 10 | MENDEZ, Miguel | Pritzker | NT |
| 11 | KOSUTH, Arkady | Taft | NT |