Detroit Derby Girls vs. Arch Rival Roller Girls - Jan. 31 2009 (1 of 108)Detroit Derby Girls vs. Arch Rival Roller Girls - Jan. 31 2009 (2 of 108)Detroit Derby Girls vs. Arch Rival Roller Girls - Jan. 31 2009 (3 of 108)Detroit Derby Girls vs. Arch Rival Roller Girls - Jan. 31 2009 (4 of 108)Detroit Derby Girls vs. Arch Rival Roller Girls - Jan. 31 2009 (5 of 108)Detroit Derby Girls vs. Arch Rival Roller Girls - Jan. 31 2009 (6 of 108)Detroit Derby Girls vs. Arch Rival Roller Girls - Jan. 31 2009 (7 of 108)Detroit Derby Girls vs. Arch Rival Roller Girls - Jan. 31 2009 (8 of 108)Detroit Derby Girls vs. Arch Rival Roller Girls - Jan. 31 2009 (9 of 108)Detroit Derby Girls vs. Arch Rival Roller Girls - Jan. 31 2009 (10 of 108)Detroit Derby Girls vs. Arch Rival Roller Girls - Jan. 31 2009 (11 of 108)Detroit Derby Girls vs. Arch Rival Roller Girls - Jan. 31 2009 (12 of 108)Detroit Derby Girls vs. Arch Rival Roller Girls - Jan. 31 2009 (13 of 108)Detroit Derby Girls vs. Arch Rival Roller Girls - Jan. 31 2009 (14 of 108)Detroit Derby Girls vs. Arch Rival Roller Girls - Jan. 31 2009 (15 of 108)Detroit Derby Girls vs. Arch Rival Roller Girls - Jan. 31 2009 (16 of 108)Detroit Derby Girls vs. Arch Rival Roller Girls - Jan. 31 2009 (17 of 108)Detroit Derby Girls vs. Arch Rival Roller Girls - Jan. 31 2009 (18 of 108)Detroit Derby Girls vs. Arch Rival Roller Girls - Jan. 31 2009 (19 of 108)Detroit Derby Girls vs. Arch Rival Roller Girls - Jan. 31 2009 (20 of 108)