2005 Big Ten men's basketball tournament

The 2005 Big Ten men's basketball tournament was the postseason men's basketball tournament for the Big Ten Conference and was played between March 9 and 12, 2005, at the United Center in Chicago, Illinois. This was the eighth annual Big Ten Men's Basketball Tournament. The championship was won by Illinois who defeated Wisconsin in the championship game. As a result, Illinois received the Big Ten's automatic bid to the NCAA tournament. The win marked the second tournament championship for Illinois in their fifth championship game appearance.

2005 Big Ten men's basketball tournament
Classification	Division I
Season	2004–05
Teams	11
Site	United Center Chicago, Illinois
Champions	Illinois Fighting Illini (2nd title)
Winning coach	Bruce Weber (1st title)
MVP	James Augustine (Illinois)
Big Ten men's basketball tournaments

2004–05 Big Ten Conference men's basketball standings

	Conf							Overall
Team	W		L		PCT			W		L		PCT
No. 1 Illinois †	15	–	1		.938			37	–	2		.949
No. 15 Michigan State	13	–	3		.813			26	–	6		.813
No. 20 Wisconsin	11	–	5		.688			25	–	9		.735
Indiana	10	–	6		.625			15	–	14		.517
Minnesota	10	–	6		.625			21	–	11		.656
Ohio State	8	–	8		.500			20	–	12		.625
Iowa	7	–	9		.438			21	–	12		.636
Northwestern	6	–	10		.375			15	–	16		.484
Michigan	4	–	12		.250			13	–	18		.419
Purdue	3	–	13		.188			7	–	21		.250
Penn State	1	–	15		.063			7	–	23		.233
† 2005 Big Ten tournament winner As of March 15, 2005 Rankings from AP Poll

Seeds

All Big Ten schools played in the tournament. Teams were seeded by conference record, with a tiebreaker system used to seed teams with identical conference records. Seeding for the tournament was determined at the close of the regular conference season. The top five teams received a first round bye.

Seed	School	Conference
1	Illinois	15–1
2	Michigan State	13–3
3	Wisconsin	11–5
4	Indiana	10–6
5	Minnesota	10–6
6	Ohio State	8–8
7	Iowa	7–9
8	Northwestern	6–10
9	Michigan	4–12
10	Purdue	3–13
11	Penn State	1–15

Bracket

	Opening round March 10					Quarterfinals March 11					Semifinals March 12					Championship March 13
						1	#1 Illinois	68
						8	Northwestern	51
	8	Northwestern	58
	9	Michigan	56
											1	#1 Illinois	64
											5	Minnesota	56
						4	Indiana	55
						5	Minnesota	71
																1	#1 Illinois	54
																3	#23 Wisconsin	43
						2	#13 Michigan State	69
						7	Iowa	71
	7	Iowa	71
	10	Purdue	52
											7	Iowa	56
											3	#23 Wisconsin	59
						3	#23 Wisconsin	60
						6	Ohio State	49
	6	Ohio State	72
	11	Penn State	69

All-Tournament Team

• James Augustine, Illinois – Big Ten tournament Most Outstanding Player
• Luther Head, Illinois
• Vincent Grier, Minnesota
• Zach Morley, Wisconsin
• Alando Tucker, Wisconsin