UFC Welterweight Championship (156 - 170 lbs.)
Champion Date Won Location Notes
Pat Miletich October 16, 1998 Sao Paulo, Brazil -a-
Carlos Newton May 4, 2001 Atlantic City, New Jersey
Matt Hughes November 2, 2001 Las Vegas, Nevada
B.J. Penn January 31, 2004 Las Vegas, Nevada -b-
Matt Hughes [2] October 22, 2004 Atlantic City, New Jersey -c-
Georges St. Pierre November 18, 2006 Sacremento, California
Matt Serra April 7, 2007 Houston, Texas
Georges St. Pierre [2] December 29, 2007 Las Vegas, NV -d-
Georges St. Pierre [2] April 19, 2008 Montreal, Quebec -e-

-a- Defeated Mikey Burnett to win the title.
-b- Title vacated in October of 2004 when Penn signs with K-1.
-c- Defeated Georges St. Pierre to win the vacant title. Title again vacated in 2005.
-d- Defeated Matt Hughes for the interim title.
-e- Defeated Matt Serra for the undisputed title.

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