Who will triumph on the track? The walking (er, rolling) Zombie dead on a search for human flesh and huge blocks? Or will the horns and equine sense of the Unicorns pierce through the competition? Come find out at Renegade Roller Derby’s latest bout. Doors open at 6pm, bout starts at 7 pm. Midtown Music Hall, 51 NW Greenwood Ave. $10 at bendticket.com, kids under 10 free.