| Event | Time | Date | Name | Meet | History |
|---|---|---|---|---|---|
| 50 Free | 21.67 | Feb. 19, 2022 | Ryan Heller | IHSA Boys Sectionals - St. Charles | |
| 100 Free | 46.60 | Feb. 25, 2022 | Ryan Heller | IHSA Boys State Championship | |
| 200 Free | 1:41.83 | Feb. 25, 2022 | Ryan Heller | IHSA Boys State Championship | |
| 500 Free | 4:40.88 | Feb. 23, 2002 | Scott Robson | 2002 IHSA Boys State | |
| 100 Back | 53.96 | Feb. 4, 2022 | Ryan Heller | WSC Silver Conference | |
| 100 Breast | 1:00.67 | Feb. 19, 2023 | Luke Wyrick | IHSA Boys Sectionals - Downers Grove | |
| 100 Fly | 51.47 | Feb. 16, 2019 | Colin Janis | IHSA Sectionals - York (Boys) | |
| 200 IM | 1:56.04 | Feb. 17, 2024 | Luke Wyrick | IHSA Boys Sectional - York | |
| 200 Free Relay | 1:29.62 | Feb. 23, 2021 | Heller, Flaherty, Lapo, Green | Glenbard W/S v Glenbard E | |
| 400 Free Relay | 3:16.51 | Feb. 20, 2016 | Curtis, Schoenfeld, Theodore, Hsu | Illinois Boys Sectional Championships - Lyons | |
| 200 Medley Relay | 1:38.98 | Feb. 18, 2017 | Ridinger, Pieper, Maloney, Curtis | ILOB IHSA Boys Sectionals Downers Grove |
