(Red Number Indicates Final Week @NestoHoops Poll Ranking)
| IHSA STATE TOURNAMENT - CLASS 1A ~ 2023 | |||||
| Sectional: Semi-Final | Sectional: Final (3/3) | Super-Sectional (3/6) | Semi-Final (3/9) | Championship (3/11) | |
| 3 | Illini Bluffs | Illini Bluffs | |||
| Elmwood | |||||
| Bushnell-Prairie City | Illini Bluffs | ||||
| Peoria Christian | Camp Point Central | ||||
| 4 | Camp Point Central | ||||
| Jacksonville | Gibault | ||||
| 6 | Gibault | Gilbault | |||
| Payson-Seymour | |||||
| Calhoun | Gibault | ||||
| Springfield Calvary | Springfield Calvary | ||||
| Madison | |||||
| Gibault | |||||
| Ellison | Serena | ||||
| Serena | |||||
| Putnam County | St. Francis de Sales | ||||
| Midland | St. Francis de Sales | ||||
| St. Francis de Sales | |||||
| Normal (Illinois State) | Cornerstone Christian | ||||
| 7 | Decatur Lutheran | Lexington | |||
| Lexington | |||||
| Heyworth | Cornerstone Christian | ||||
| Cornerstone Christian | Cornerstone Christian | ||||
| 12 | Salt Fork | ||||
| UNIVERSITY OF ILLINOIS | GIBAULT | ||||
| 9 | Altamont | Altamont | (State Farm Center) | IHSA Class 1A - 2023 | |
| Casey-Westfield | |||||
| Altamont | Tuscola | ||||
| Tuscola | Tuscola | ||||
| 15 | St. Anthony | ||||
| Carbondale (Southern Illinois) | Tuscola | ||||
| Gallatin County | Webber | ||||
| Webber | |||||
| Gallatin County | Meridian (Mounds) | ||||
| Wayne City | Meridian (Mounds) | ||||
| Meridian (Mounds) | |||||
| Scales Mound | |||||
| Hope Academy | Hope Academy | ||||
| Harvest Christian | |||||
| Elgin | Marshall | ||||
| Hinckley-Big Rock | Marshall | ||||
| 10 | Marshall | ||||
| De Kalb (Northern Illinois) | Scales Mound | ||||
| 5 | Pecatonica | Fulton | |||
| Fulton | |||||
| Eastland | Scales Mound | ||||
| 16 | Scales Mound | Scales Mound | Cornerstone Christian | ||
| South Beloit | Tuscola | Tuscola | |||