Elite Performances
18 performances met the MileSplit US Second Team standard.
| HS Girls | Mark | Athlete | Team |
|---|---|---|---|
| 4x200 Meter Relay Finals | 1:44.32 | Relay Team | Batavia |
| 4x200 Meter Relay Finals | 1:45.68 | Relay Team | DeKalb |
| 4x200 Meter Relay Finals | 1:47.12 | Relay Team | Plainfield (South) |
| 4x200 Meter Relay Finals | 1:49.25 | Relay Team | Aurora (West Aurora) |
| 4x400 Meter Relay Finals | 4:08.76 | Relay Team | Hoffman Estates (H.S.) |
| 4x400 Meter Relay Finals | 4:09.85 | Relay Team | Aurora (West Aurora) |
| 4x400 Meter Relay Finals | 4:10.97 | Relay Team | DeKalb |
| 4x800 Meter Relay Finals | 9:46.70 | Relay Team | Palatine (H.S.) |
| 4x800 Meter Relay Finals | 9:48.99 | Relay Team | Batavia |
| Distance Medley Relay Finals | 12:43.71 | Relay Team | Palatine (H.S.) |
| Sprint Medley Relay Finals | 4:17.74 | Relay Team | Lombard (Glenbard East) |
| Sprint Medley Relay Finals | 4:19.67 | Relay Team | Aurora (West Aurora) |
| Sprint Medley Relay Finals | 4:20.50 | Relay Team | Plainfield (South) |
| Sprint Medley Relay Finals | 4:22.06 | Relay Team | Hoffman Estates (Conant) |
| HS Boys | Mark | Athlete | Team |
| 4x200 Meter Relay Finals | 1:32.60 | Relay Team | Batavia |
| 4x200 Meter Relay Finals | 1:33.89 | Relay Team | South Elgin |
| 4x400 Meter Relay Finals | 3:27.41 | Relay Team | Batavia |
| 4x800 Meter Relay Finals | 8:10.92 | Relay Team | Batavia |