Because the Cricket Wireless Chupacabra de San Antonio 5K/10K takes place after sundown, runners can enjoy cooler temperatures. It also means they're running through McAllister Park on wooded trails, relying on a headlamp or flashlight to help them avoid tree branches and rocks as they follow the course marked by glow sticks. Of course, that's the fun of it. The fifth annual run starts at 9 p.m ...


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