| Class 4A |
| 1. Stevenson (31-2) beat Round Lake 64-31. |
| 2. Benet (26-3) beat Plainfield Central 61-18. |
| 3. Edwardsville (25-4) did not play. |
| 4. Loyola (28-3) beat Chicago Taft 66-27. |
| 5. Barrington (25-5) beat McHenry 53-18. |
| 6. Kenwood (20-6) beat Oak Lawn 49-44. |
| 7. Naperville North (28-3) beat West Aurora 62-52. |
| 8. Whitney Young (21-5) beat Hinsdale Central 71-33. |
| 9. Bolingbrook (20-5) beat Lincoln-Way East 56-35. |
| 10. Fremd (26-6) beat Palantine 54-27. |
| ¤ |
| Class 3A |
| 1. Nazareth (28-2) beat Chicago Kennedy 65-15. |
| 2. Geneseo (31-1) beat Rock Island 62-48. |
| 3. Peoria Central (25-4) lost to Morton 31-27. |
| 4. Peoria Notre Dame (25-3) did not play. |
| 5. Sycamore (29-2) beat Belvidere North 53-28. |
| 6. Mattoon (27-2) did not play. |
| 7. Morton (25-5) beat Peoria Central 31-27. |
| 8. Washington (24-5) did not play. |
| 9. Montini (23-8) beat Lemont 51-26. |
| 10. Mahomet-Seymour (28-4) beat Bloomington 53-37. |
| ¤ |
| Class 2A |
| 1. Winnebago (31-2) beat Rock Falls 54-24. |
| 2. Pana (32-1) beat Tolono Unity 59-29. |
| 3. Quincy Notre Dame (24-5) did not play. |
| 4. Illini West (Carthage) (30-2) beat |
| 5. Chicago (Noble Street Butler) (23-9) beat Central-Southeastern 33-30. |
| 6. Fieldcrest (31-2) beat Seneca 30-17. |
| (tie) Paris (27-4) beat Clinton 63-38. |
| 8. Peotone (26-5) lost to Prairie Central 49-43. |
| 9. Carterville (25-6) beat DuQuoin 48-41. |
| (tie) Teutopolis (21-7) beat Robinson 68-31. |
| ¤ |
| Class 1A |
| 1. Brimfield (27-4) beat Annawan 67-39. |
| 2. Okawville (28-2) did not play. |
| 3. Tri-County (27-3) beat Arcola 58-34. |
| 4. Galena (28-3) beat Eastland 47-32. |
| 5. Brown County (29-5) beat Havana 58-29. |
| 6. Serena (29-2) did not play. |
| 7. Mendon Unity (26-5) beat Abingdon-Avon 68-39. |
| 8. Christopher (22-4) beat Webber 46-30. |
| 9. Orangeville (27-4) did not play. |
| 10. Havana (22-8) lost to Brown County 58-29. |
| ¤ |
