Sponsor fit
Here's a sponsorship that some people thought was not appropriate.
We've talked about sponsor controversies in the past, but race directors' concerns may need to go beyond that.
Companies selling tobacco and hard liquor are almost never solicited as sponsors of races. Events involving schools don't sign beer sponsors. Other categories might also require a more critical review.
Should a company that produces a fatty dessert be a sponsor? What about an automobile manufacturer that produces gas guzzlers? Is a fast food purveyor an appropriate sponsor? What about a polluter?
It's tempting to take cash from anyone who offers it. But don't wait for people to complain. If you think a potential sponsor isn't a good fit for your event, just say "no."