| Event | Time | Date | Name | Meet | History |
|---|---|---|---|---|---|
| 50 Free | 20.24 | Feb. 24, 2012 | Max Grodecki | 12 Illinois Boys High School State Championships | |
| 100 Free | 44.58 | Feb. 27, 2015 | Murphy McQuet | 15 Illinois Boys State Championships | |
| 200 Free | 1:35.60 | Feb. 23, 2013 | Reed Malone | 13 Illinois Boys High School State Championships | |
| 500 Free | 4:19.39 | Feb. 24, 2012 | Reed Malone | 12 Illinois Boys High School State Championships | |
| 100 Back | 48.25 | Feb. 23, 2024 | Charlie Bufton | IHSA Boys State Championship | |
| 100 Breast | 53.60 | Feb. 23, 2018 | Charlie Scheinfeld | IHSA Boys State Championship | |
| 100 Fly | 47.49 | Feb. 23, 2024 | Aiden Musick | IHSA Boys State Championship | |
| 200 IM | 1:46.39 | Feb. 23, 2024 | Charlie Bufton | IHSA Boys State Championship | |
| 200 Free Relay | 1:22.37 | Feb. 23, 2024 | Angelov, Perry, Noreuil, Musick | IHSA Boys State Championship | |
| 400 Free Relay | 2:59.76 | Feb. 24, 2012 | Skinner, Malone, Mangan, Grodecki | 12 Illinois Boys High School State Championships | |
| 200 Medley Relay | 1:27.19 | Jan. 19, 2024 | Caceres, Cunningham, Adrianapali, Lewis | New Trier vs. Maine South |
