 | | Tulsa | 71 | | 10-6 |  | | Bradley | 69 | | 6-9 | | Mar 3, 1990 | |  | | Southern Illinois | 70 | | 12-5 |  | | Indiana State | 54 | | 2-13 | | Mar 3, 1990 | |  | | Drake | 62 | | 5-11 |  | | Illinois State | 63 | | 9-5 | | Mar 3, 1990 | |  | | Wichita State | 66 | | 6-9 |  | | Creighton | 70 | | 11-6 | | Mar 3, 1990 | |
| | | Tulsa | 65 | | 10-6 | | | Southern Illinois | 75 | | 12-5 | | Mar 4, 1990 | | | | Creighton | 64 | | 11-6 | | | Illinois State | 69 | | 9-5 | | Mar 4, 1990 | |
| | | Southern Illinois | 78 | | 12-5 | | | Illinois State | 81 | | 9-5 | | Mar 5, 1990 | |
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