Elite Performances
9 performances met the MileSplit US Second Team standard.
| HS Girls | Mark | Athlete | Team |
|---|---|---|---|
| 4x200 Meter Relay Finals | 1:48.23 | Relay Team | Oak Park (O.P.-River Forest) |
| 4x400 Meter Relay Finals | 4:07.72 | Relay Team | Chicago (Lane) |
| 4x800 Meter Relay Finals | 9:37.65 | Relay Team | Chicago (Lane) |
| HS Boys | Mark | Athlete | Team |
| 4x200 Meter Relay Finals | 1:33.85 | Relay Team | Minooka |
| 4x200 Meter Relay Finals | 1:34.13 | Relay Team | Hillside (Proviso West) |
| 4x400 Meter Relay Finals | 3:30.07 | Relay Team | LaGrange (Lyons) |
| 4x800 Meter Relay Finals | 8:16.73 | Relay Team | LaGrange (Lyons) |
| 4x800 Meter Relay Finals | 8:19.54 | Relay Team | Barrington |
| 4x800 Meter Relay Finals | 8:20.38 | Relay Team | Chicago (Jones) |