nationally ranked women's roller derby team The Windy City Rollers join in the WCR All-Stars, ranked first in their (North Central) region by the Women's Flat Track Derby Association (WFTDA), to take on the third-ranked in their (East) region Boston Derby Dames Boston Massacre. Doors open at 5 p.m. $20 in advance, $40 VIP (track-side seats)