Yeah, back when I was a wholesale insurance broker we used to write these policies, I think with Essex or Markel. We also did rubber duck races. It wasn't much for a million dollar limit. Less than a thousand dollars premium as I recall. Part of the rules were that anyone who had ever been a professional golfer wasn't eligible to be a contestant. 

Similar situation with free-throw contests, which I never did any underwriting for but I think even having played college basketball excludes a participant from participating or winning.