2005 Big West Conference men's basketball tournament

The 2005 Big West Conference men's basketball tournament was held March 9–12 at Anaheim Convention Center in Anaheim, California.

2005 Big West Conference men's basketball tournament
Classification	Division I
Season	2004–05
Teams	8
Site	Anaheim Convention Center Anaheim, CA
Champions	Utah State (6th title)
Winning coach	Stew Morrill (4th title)
MVP	Jaycee Carroll (Utah State)
Big West Conference men's basketball tournaments

2004–05 Big West men's basketball standings

	Conf							Overall
Team	W		L		PCT			W		L		PCT
No. 22 Pacific	18	–	0		1.000			27	–	4		.871
Utah State †	13	–	5		.722			24	–	8		.750
Cal State Fullerton	12	–	6		.667			21	–	11		.656
Cal State Northridge	12	–	6		.667			18	–	13		.581
UC Irvine	8	–	10		.444			16	–	13		.552
Long Beach State	7	–	11		.389			10	–	20		.333
UC Santa Barbara	7	–	11		.389			11	–	18		.379
Idaho	6	–	12		.333			8	–	22		.267
UC Riverside	4	–	14		.222			9	–	19		.321
Cal Poly	3	–	15		.167			5	–	22		.185
† 2005 Big West tournament winner As of April 10, 2005 Rankings from AP poll

Utah State defeated Pacific in the championship game, 65–52, to obtain the sixth Big West Conference men's basketball tournament championship in school history.

The Aggies earned the conference's automatic bid to the 2005 NCAA Division I men's basketball tournament as the #14 seed in the Chicago regional. Pacific received an at-large bid as the #8 seed in the Albuquerque regional. This year marks the most recent time the Big West Conference has received more than one bid to the NCAA Division I men's basketball tournament.

Format

Eight of the ten teams in the conference participated, with UC Riverside and Cal Poly not qualifying. Teams were seeded based on regular season conference records. The top four seeds received byes, with the top two seeds receiving a second bye into the semifinal round.

Bracket

	First round Thursday, March 9					Quarterfinals Friday, March 10					Semifinals Saturday, March 11					Championship Sunday, March 12
											1	#18 Pacific	63
	5	UC Irvine	80								4	Cal State Northridge	61
	8	Idaho	67			4	Cal State Northridge	72
						5	UC Irvine	56
																1	#18 Pacific	52
																2	Utah State	65
						6	UC Santa Barbara	55
	6	UC Santa Barbara	55			3	Cal State Fullerton	66
	7	Long Beach State	49								3	Cal State Fullerton	77
											2	Utah State	84