1980 Midwestern City Conference men's basketball tournament

The 1980 Midwestern City Conference men's basketball tournament (now known as the Horizon League men's basketball tournament) was held February 29 – March 2 at Roberts Municipal Stadium in Evansville, Indiana. This was the first edition of the tournament.

1980 Midwestern City Conference men's basketball tournament
Classification	Division I
Season	1979–80
Teams	6
Site	Roberts Municipal Stadium Evansville, IN
Champions	Oral Roberts (1st title)
Winning coach	Ken Hayes (1st title)
MVP	Calvin Garrett (Oral Roberts)
Midwestern City Conference men's basketball tournaments

1979–80 Midwestern City Conference men's basketball standings

	Conf							Overall
Team	W		L		PCT			W		L		PCT
Loyola-Chicago	5	–	0		1.000			19	–	10		.655
Oral Roberts †	4	–	1		.800			18	–	10		.643
Oklahoma City	3	–	2		.600			13	–	15		.464
Butler	2	–	3		.400			12	–	15		.444
Evansville	1	–	4		.200			18	–	10		.643
Xavier	0	–	5		.000			8	–	18		.308
† 1980 MCC tournament winner

Oral Roberts topped Loyola–Chicago in the inaugural championship game, 103–93, to win their first MCC/Horizon League men's basketball tournament.

The Golden Eagles, however, did not receive a bid to the 1980 NCAA tournament.

Format

All six conference members participated in the tournament and were seeded based on regular season conference records. The top two teams were given byes into the semifinal round while the remaining four teams were placed into the initial quarterfinal round.

Bracket

	Quarterfinals Friday, February 29					Semifinals Saturday, March 1					Championship Sunday, March 2
						1	Loyola–Chicago	81
						5	Evansville	78
	5	Evansville	80
	4	Butler	67
											1	Loyola–Chicago	93
											2	Oral Roberts	103
	3	Oklahoma City	102
	6	Xavier	93
						3	Oklahoma City	100
						2	Oral Roberts	101