The 1990 Mid-Continent Conference Tournament took place from May 11 through 14. The top 4 regular season finishers of the league's eight teams met in the double-elimination tournament held in Chicago, Illinois. UIC won the tournament for the first time.[2]
The top two teams from each division advanced to the tournament.  The top seed from each division played the second seed from the opposite division in the second round.
Tournament
|
 |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
 | Upper round 1 |  |  | Upper final |  |  | Final | 
 | 
 |  |  |  | 
 | 
 | 1B | UIC | 5 | 
 |  |  |  | 
 | 2G | Eastern Illinois | 2 |  |  | 
 |  |  | 1B | UIC | 513 | 
 |  |  |  |  |  | 
 |  |  | 1G | Southwest Missouri State | 4 |  |  | 
 | 1G | Southwest Missouri State | 512 |  |  |  |  | 
 |  |  |  |  | 
 | 2B | Akron | 4 |  |  | 
 |  |  | 1B | UIC | 4 | — | 
 |  |  |  | 
 |  |  | 1G | Southwest Missouri State | 0 | — | 
 | Lower round 1 |  |  | Lower final |  |  | 
 |  | 
 |  |  | 
 | 
 |  | 1G | Southwest Missouri State | 9 | 
 |  |  | 
 | 2G | Eastern Illinois | 8 |  |  | 2G | Eastern Illinois | 2 |  |  | 
 |  |  |  |  | 
 | 2B | Akron | 1 |  |  |  | 
 |  |  |  |  | 
 
All-Tournament Team
| Name | 
School
 | 
| Brent Bartlett | 
Southwest Missouri State
 | 
| Brett Davis | 
UIC
 | 
| Greg Faron | 
Southwest Missouri State
 | 
| Corby Fister | 
Southwest Missouri State
 | 
| Steve Hall | 
UIC
 | 
| Jeff Jetel | 
Eastern Illinois
 | 
| Cory Krueger | 
Southwest Missouri State
 | 
| John Mallee | 
UIC
 | 
| Jeff Nelson | 
Eastern Illinois
 | 
| Jim Phillos | 
UIC
 | 
| Jeff Rollyson | 
Akron
 | 
| Kevin Walker | 
UIC
 | 
Tournament Most Valuable Player
Kevin Walker of UIC was named Tournament MVP.
References
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No Tournament played in years marked grey.  |