| Boys Tennis Results | 2003 | 
| May 24 |       | Alton (Sr.) | 
| May 24 |       | Aurora (West) | 
| May 24 |       | Bartlett | 
| May 24 |       | Belleville (East) | 
| May 24 |       | Bloomington (H.S.) | 
| May 24 |       | Cary (C.-Grove) | 
| May 24 |       | Centralia | 
| May 24 |       | Charleston | 
| May 24 |       | Chicago (Morgan Park) | 
| May 24 |       | Chicago (Young) | 
| May 24 |       | Danville (H.S.) | 
| May 24 |       | Des Plaines (Maine West) | 
| May 24 |       | Flossmoor (Homewood-F.) | 
| May 24 |       | Frankfort (Lincoln-Way East) | 
| May 24 |       | Glenview (Glenbrook South) | 
| May 24 |       | Gurnee (Warren) | 
| May 24 |       | Hinsdale (Central) | 
| May 24 |       | Hoffman Estates (H.S.) | 
| May 24 |       | Joliet (Catholic Academy) | 
| May 24 |       | LaGrange (Lyons) | 
| May 24 |       | McHenry | 
| May 24 |       | Mt. Prospect (Prospect) | 
| May 24 |       | Naperville (North) | 
| May 24 |       | Oak Lawn (Richards) | 
| May 24 |       | Oak Park (O.P.-River Forest) | 
| May 24 |       | Olney (East Richland) | 
| May 24 |       | Ottawa (Twp.) | 
| May 24 |       | Peoria (Richwoods) | 
| May 24 |       | Quincy (Notre Dame) | 
| May 24 |       | Rock Island (H.S.) | 
| May 24 |       | Rockford (Guilford) | 
| May 24 |       | St. Charles (East) |