Elite Performances
8 performances met the MileSplit US Second Team standard.
| HS Girls | Mark | Athlete | Team |
|---|---|---|---|
| 4x200 Meter Relay Finals | 1:46.86 | Relay Team | Oak Park (O.P.-River Forest) |
| 4x400 Meter Relay Finals | 4:07.82 | Relay Team | Oak Park (O.P.-River Forest) |
| 4x400 Meter Relay Finals | 4:10.46 | Relay Team | Hillside (Proviso West) |
| HS Boys | Mark | Athlete | Team |
| 4x200 Meter Relay Finals | 1:33.96 | Relay Team | Hillside (Proviso West) |
| 4x200 Meter Relay Finals | 1:32.41 | Relay Team | Minooka |
| 4x400 Meter Relay Finals | 3:27.98 | Relay Team | Minooka |
| 4x800 Meter Relay Finals | 8:11.19 | Relay Team | Chicago (Whitney Young) |
| 4x800 Meter Relay Finals | 8:10.23 | Relay Team | LaGrange (Lyons) |