Firefly Run is a fun 5K/10K night race happening in multiple cities throughout the U.S. firefly,run,race,running,dallas,miami beach,austin,atlanta,competition,light,lights,lit,night,nighttime,dazzling,bright,shine,brilliant,fun run, walk, 5K, 10K, at night, night time, evening, dusk, sunset, dark, light, lighting, illuminate, illuminated, visual effects, LED, LEDs, 3M, reflective, glow, glowing, glow sticks, Super Bowl, Superbowl, dance, dancers, performers, performance, 3.1, 6.2, 13.1, 26.2, mile, miles, marathon, half marathon