| EVENT | ATHLETE | SCHOOL | TIME | YEAR |
| 100m | Moutray, Johnson | Charleston, Robinson | 10.61 | 1976, 1995 |
| 200m | Anthony Hyatt | Newton | 22.07 | 2004 |
| 400m | Dan Gorski | Robinson | 49.76 | 1984 |
| 800m | Nick Oakley | Charleston | 1:56.16 | 2018 |
| 1600m | Riley McInerney | Charleston | 4:17.33 | 2013 |
| 3200m | Jake Brown | Mt. Zion | 9:16.43 | 2013 |
| 100 hurdles | Dean Sanders, Hall | Mt. Zion, Decatur Lakeview | 14.3 | 1976, 1999 |
| 300 hurdles | Derek Fasnacht | Charleston | 39.46 | 2003 |
| 4×100 relay | Reed Tarr, Anthony Hyatt, Brice Rauch, Lucas Emmerich | Newton | 43.23 | 2004 |
| 4×200 relay | Reed Tarr, Anthony Hyatt, Brice Rauch, Lucas Emmerich | Newton | 1:30.92 | 2004 |
| 4×400 relay | Corey Hopkins, Jared Helpingstein, Jon Fisher, Grant Reed | Salem | 3:24.95 | 2006 |
| 4×800 rely | Jared Helpingstein, Cory Pruden, Wes Villalobos, Adam Wilkens | Salem | 8:03.4 | 2007 |
| Shot put | Hunter Hendershot | Mahomet | 58-0.5 | 2019 |
| Discus | Harley Russell | Mt. Zion | 180-10 | 2018 |
| Long jump | Tad Hughlett | Robinson | 24-2¾ | 1999 |
| Triple jump | Iheanyi Obia | Charleston | 46-1 | 1998 |
| High jump | Mammoser | Newton | 6-8.5 | 1985 |
| Pole vault | Mitch Mammoser | Newton | 15-4 | 2012 |