The Rat City Rollergirls hosted the 2006 Roller Derby "Bumberbout" Flat Track Invitational on Saturday, September 2, 2006, in the KeyArena at Seattle Center. The Texas Rollergirls won the championship, retaining undefeated status. The Rat City Rollergirls finished second. Within the Rat City Rollergirl league the Sockit Wenches won the season championship at Sand Point on October 21, 2006. They beat the formerly undefeated Derby Liberation Front, scoring the decisive points in the final seconds of the match, and of the season.