Involuntary Racing

Go to a popular running trail in your town. Set up finish line tape and checkered flag. The tape should cover most of the trail but allow room for some people to go around. Have video camera set up facing the finish line. Have a volunteer (or a few) runner(s) in a really good running suit waiting 1/2 mile before the finish line. When the next runner comes by have one of your volunteers start the race simply by getting side by side with the other person. This part will really rely on the volunteers and involunteers getting competitive. Hopefully you will get some epic close finishes and you could have a cheering section too. Start a youtube channel where you post the finishes and hand out little cards so people can find there race.