| Lane | Athlete | Team | Seed |
|---|---|---|---|
| 1 | PRESTON, Owen | Queen of Angels | NT |
| 2 | O'BRIEN, Cormac | Queen of Angels | NT |
| 3 | ESTELA, Elon | Pritzker | NT |
| 4 | ABUGHAZALLAH, Omar | Near North Montessori | NT |
| 5 | LYNCH, Alex | Immaculate Conception North Park | NT |
| 6 | HIOTIS, Teddy | Immaculate Conception North Park | NT |
| 7 | NUNEZ, Giancarlo | Queen of Angels | NT |
| 8 | ZWEIFEL, Brian | Near North Montessori | NT |
| 9 | CHAUDRI, Zane | Lincoln (Chicago) | NT |
| 10 | GUPTA, Ojas | Catherine Cook | NT |
| 11 | JACOBY, Nikhil | Alexander Graham Bell Elementary | NT |
| 12 | LOZA, Alejandro | St. Helen | NT |
| 13 | FREISINGER, Alex | Alexander Graham Bell Elementary | NT |
| Lane | Athlete | Team | Seed |
|---|---|---|---|
| 1 | HORAN, Brendan | MiniCRR | 1:25.00 |
| 2 | HURLEY, Seamus | Queen of Angels | 1:25.60 |
| 3 | FIESTA, David | Queen of Angels | 1:25.80 |
| 4 | CALZADA, Xavier | Chicago Trailblazers | 1:28.69 |
| 5 | DEVANEY, Will | Chicago Trailblazers | 1:33.19 |
| 6 | HOTARY, Emmett | Chicago Trailblazers | 1:35.00 |
| 7 | BARON, Christopher | Catherine Cook | NT |
| 8 | KELLY, Jack | Queen of Angels | NT |
| 9 | DOHERTY, Aonghus | Lincoln (Chicago) | NT |
| 10 | KONDIC, Stefan | Immaculate Conception North Park | NT |
| 11 | LAWRENCE, Will | St. Helen | NT |
| 12 | SHUTTLEWORTH, Jack | Immaculate Conception North Park | NT |
| 13 | TRYGESSTAD, Joseph | Queen of Angels | NT |
| Lane | Athlete | Team | Seed |
|---|---|---|---|
| 1 | SWAN, Alrik | St Matthias | 1:06.35 |
| 2 | BADILLO, Jackson | Pope John XXIII | 1:11.06 |
| 3 | MORA, Andrew | 21-Unattached | 1:12.93 |
| 4 | BATTIN, Jude | St Matthias | 1:14.00 |
| 5 | HERING, James | Chicago Trailblazers | 1:14.61 |
| 6 | VOLMERDING, Benjamin | St Matthias | 1:17.74 |
| 7 | BALOGUN, Ore | Pope John XXIII | 1:20.51 |
| 8 | MADKINS, Tyson | Francis W. Parker | 1:22.26 |
| 9 | OSWALD, Xavi | St Matthias | 1:22.61 |
| 10 | KREBS, Nicholas | St Matthias | 1:23.00 |
| 11 | RENDINA, Ben | St Matthias | 1:23.00 |
| 12 | GRIEB, Max | Catherine Cook | 1:23.99 |
| 13 | OSWALD, Oliver Jack | MiniCRR | 1:25.00 |