Cluttered web pages
Viewers will be better able to find information on your web site if the home page is not cluttered with lots of copy and images. Too often, organizations dump absolutely everything they do on the home page.
The more you post on any page, the less anybody will read any of it. It will look messy and unfocused.
Instead, post only a few items - a very few - on the home page. Provide buttons for viewers to click to various activities.
Users won't mind clicking to other pages as long as they quickly get to the information they want, and aren't sidetracked by requests for donations or other irrelevant topics.
If you produce a running event as part of a larger organization, place a button on the home page for users to click to race information. They don't want to give you money, or volunteer, or find out about your programs. They just want to sign up for the race.
If you produce lots of races, post an "events" button that leads to a page with links to each event.
Give your customers what they want, not what you want them to want. And make it easy for them to find what they want. Otherwise, they'll just look for it somewhere else.
Check out the web sites of the Oak Park Runners Club and the Bank of America Chicago Marathon.