Marketing mistake
I just picked up an entry form for a race produced by a local charity. It has eight panels - one each for the cover, mailer, and registration form, two that discuss the cause, two for a pledge sheet, and only one that very briefly - and incompletely - talks about the race.
This piece appears to be pitched to supporters of the cause. That's a mistake. Most runners do not sign up to support a cause, they sign up to run in a race.
This entry form does not mention anything about split times, aid stations, mile marks, age groups, or results. Other than a course map, it does not provide information that runners need.
Also, it does not ask for the runner's gender, so there will be no male and female results. It offers space for a team name but says nothing about team competition. (The web site explains teams but doesn't say how many people constitute a team).
The pledge form, in particular, is a colossal waste of space. It presumes that runners will not only be supporters, but that they will be contributors and fund-raisers.
The audience for your race is runners, not supporters of the cause and not beneficiaries of the cause. Your entry form and marketing materials should be designed for runners, unless you really don't care about the running portion of the event.