Elite Performances
56 performances met the MileSplit US Second Team standard.
| HS Girls | Mark | Athlete | Team |
|---|---|---|---|
| 4x200 Meter Relay Finals | 1:45.70 | Relay Team | Bolingbrook |
| 4x200 Meter Relay Finals | 1:45.91 | Relay Team | Mt. Prospect (Prospect) |
| 4x200 Meter Relay Finals | 1:46.55 | Relay Team | Naperville (Neuqua Valley) |
| 4x200 Meter Relay Finals | 1:46.59 | Relay Team | Plainfield (East) |
| 4x200 Meter Relay Finals | 1:46.60 | Relay Team | Batavia |
| 4x200 Meter Relay Finals | 1:46.85 | Relay Team | Frankfort (Lincoln-Way East) |
| 4x200 Meter Relay Finals | 1:48.75 | Relay Team | Chicago (Whitney Young) |
| 4x200 Meter Relay Finals | 1:48.82 | Relay Team | Minooka |
| 4x200 Meter Relay Finals | 1:48.87 | Relay Team | Downers Grove (North) |
| 4x200 Meter Relay Finals | 1:49.20 | Relay Team | Hinsdale (Central) |
| 4x200 Meter Relay Finals | 1:49.33 | Relay Team | Plainfield (North) |
| 4x400 Meter Relay Finals | 4:00.92 | Relay Team | Mt. Prospect (Prospect) |
| 4x400 Meter Relay Finals | 4:03.93 | Relay Team | Plainfield (North) |
| 4x400 Meter Relay Finals | 4:06.51 | Relay Team | Batavia |
| 4x400 Meter Relay Finals | 4:07.64 | Relay Team | Frankfort (Lincoln-Way East) |
| 4x400 Meter Relay Finals | 4:09.50 | Relay Team | LaGrange (Lyons) |
| 4x400 Meter Relay Finals | 4:09.86 | Relay Team | Naperville (Neuqua Valley) |
| 4x800 Meter Relay Finals | 9:04.68 | Relay Team | Mt. Prospect (Prospect) |
| 4x800 Meter Relay Finals | 9:27.26 | Relay Team | Hinsdale (Central) |
| 4x800 Meter Relay Finals | 9:29.72 | Relay Team | Downers Grove (North) |
| 4x800 Meter Relay Finals | 9:30.11 | Relay Team | Naperville (Central) |
| 4x800 Meter Relay Finals | 9:31.57 | Relay Team | LaGrange (Lyons) |
| 4x800 Meter Relay Finals | 9:40.69 | Relay Team | Chicago (St. Ignatius College Prep) |
| 4x800 Meter Relay Finals | 9:41.16 | Relay Team | Wilmette (Loyola Academy) |
| 4x800 Meter Relay Finals | 9:43.92 | Relay Team | Minooka |
| 4x800 Meter Relay Finals | 9:45.35 | Relay Team | Batavia |
| 4x800 Meter Relay Finals | 9:46.31 | Relay Team | Plainfield (North) |
| 4x800 Meter Relay Finals | 9:51.85 | Relay Team | Chicago (Whitney Young) |
| 4x800 Meter Relay Finals | 9:57.28 | Relay Team | Yorkville (H.S) |
| 4x800 Meter Relay Finals | 9:59.62 | Relay Team | Chicago (Lane) |
| 4x800 Meter Relay Finals | 9:59.75 | Relay Team | Lockport (Twp.) |
| 4x800 Meter Relay Finals | 10:00.70 | Relay Team | Orland Park (Sandburg) |
| HS Boys | Mark | Athlete | Team |
| 4x200 Meter Relay Finals | 1:31.87 | Relay Team | Minooka |
| 4x200 Meter Relay Finals | 1:32.51 | Relay Team | Plainfield (South) |
| 4x200 Meter Relay Finals | 1:32.53 | Relay Team | Bolingbrook |
| 4x200 Meter Relay Finals | 1:32.61 | Relay Team | Chicago (Kenwood) |
| 4x200 Meter Relay Finals | 1:32.75 | Relay Team | Tinley Park (Andrew) |
| 4x200 Meter Relay Finals | 1:33.17 | Relay Team | Chicago (Lane) |
| 4x200 Meter Relay Finals | 1:33.46 | Relay Team | Bradley (B.-Bourbonnais) |
| 4x200 Meter Relay Finals | 1:33.64 | Relay Team | Downers Grove (North) |
| 4x400 Meter Relay Finals | 3:27.85 | Relay Team | Yorkville (H.S) |
| 4x400 Meter Relay Finals | 3:28.96 | Relay Team | Chicago (Kenwood) |
| 4x400 Meter Relay Finals | 3:30.66 | Relay Team | Downers Grove (North) |
| 4x800 Meter Relay Finals | 7:45.73 | Relay Team | Hinsdale (Central) |
| 4x800 Meter Relay Finals | 7:58.89 | Relay Team | Naperville (Central) |
| 4x800 Meter Relay Finals | 8:00.77 | Relay Team | Plainfield (South) |
| 4x800 Meter Relay Finals | 8:00.97 | Relay Team | Downers Grove (North) |
| 4x800 Meter Relay Finals | 8:08.16 | Relay Team | Plainfield (North) |
| 4x800 Meter Relay Finals | 8:09.78 | Relay Team | Bolingbrook |
| 4x800 Meter Relay Finals | 8:10.70 | Relay Team | Chicago (St. Ignatius College Prep) |
| 4x800 Meter Relay Finals | 8:11.31 | Relay Team | Orland Park (Sandburg) |
| 4x800 Meter Relay Finals | 8:11.75 | Relay Team | Minooka |
| 4x800 Meter Relay Finals | 8:13.23 | Relay Team | Chicago (Whitney Young) |
| 4x800 Meter Relay Finals | 8:13.71 | Relay Team | Chicago (Lane) |
| 4x800 Meter Relay Finals | 8:16.39 | Relay Team | Batavia |
| 4x800 Meter Relay Finals | 8:17.49 | Relay Team | Downers Grove (South) |