List of World Extreme Cagefighting champions
Middleweight Championship
Weight limit: 185 lb (83.9 kg)

List of World Extreme Cagefighting champions

Section Title: Middleweight Championship
Table Section Text: Weight limit: 185 lb (83.9 kg)

No.	Name	Event	Date	Defenses

1	United States Chris Leben def. Mike Swick	WEC 9 Lemoore, CA, USA	January 16, 2004

Leben vacates the title to participate in the UFC's The Ultimate Fighter.

2	United States Joe Riggs def. Rob Kimmons	WEC 15 Lemoore, CA, USA	May 19, 2005

The WEC Middleweight title was vacated December 2006 when Zuffa purchased the organization.

3	Brazil Paulo Filho def. Joe Doerksen	WEC 29 Las Vegas, NV, USA	August 5, 2007	1. def. Chael Sonnen at WEC 31 on Dec 12, 2007 in Las Vegas, NV, USA

The WEC Middleweight division was absorbed into the UFC on December 3, 2008, so the WEC could further concentrate on lighter weight classes.

Sentence(s)

In December 2007, Sonnen fought against Paulo Filho for the WEC Middleweight Championship.

final_sentence: In December 2007, Sonnen fought against Paulo Filho for the WEC Middleweight Championship.