Elite Performances
10 performances met the MileSplit US Second Team standard.
| HS Boys | Mark | Athlete | Team |
|---|---|---|---|
| 4x1600 Meter Relay Finals | 18:19.70 | Relay Team | Oak Park (O.P.-River Forest) |
| 4x1600 Meter Relay Finals | 18:06.70 | Relay Team | LaGrange (Lyons) |
| 4x200 Meter Relay Finals | 1:29.16 | Relay Team | Oak Park (O.P.-River Forest) |
| 4x800 Meter Relay Finals | 8:04.80 | Relay Team | Oak Park (O.P.-River Forest) |
| Distance Medley Relay Finals | 10:40.30 | Relay Team | Chicago (Lane) |
| Distance Medley Relay Finals | 10:39.20 | Relay Team | LaGrange (Lyons) |
| Sprint Medley Relay Finals | 3:37.10 | Relay Team | Plainfield (Central) |
| Sprint Medley Relay Finals | 3:38.60 | Relay Team | Darien (Hinsdale South) |
| Sprint Medley Relay Finals | 3:38.80 | Relay Team | LaGrange (Lyons) |
| Sprint Medley Relay Finals | 3:39.70 | Relay Team | Chicago (Taft) |