Conejo Recreation & Park, Thousand Oaks

Ghouls, goblins, angels, and bumblebee's trample through the friendly filth at the Conejo Valley Halloween Mud Run. Racers sweat in running spandex or costumes as they complete either a 5K or 10K course complete with hay bales to hurdle, walls to climb, and mud pits to throw incriminating evidence into. The prospect of warm showers greets racers as they finish, along with food vendors, exhibitors, and live music. Racers power through the muck in groups of 75–100 fellow crazies, each affixed with an electronic chip for accurate race timing.