Hey Robert,
Thanks for reaching out. There’s unfortunately not a way to apply filters to which events are in the map view without writing custom code. 🙁
There are the filters built into the Tribe Bar (the bar with the “View As” selector, search box, etc.) and the premium add-on Filter Bar which let you search and narrow down the display; but you have already expressed the trouble with this on your site in your case.
Other than these filters, custom code would be needed to apply other limitations to what events show up in the views.
To implement custom filtering, then, you would have to write that custom code or hire a professional developer to do it for you. We have a list of great developers here → http://m.tri.be/18k1 (and have no affiliation with any of these folks—they’re simply some well-respected names in the community that we’ve compiled to share in situations like this one).
I am sorry to disappoint here! Please let me know if there are any other issues or questions I can try to help with.
Sincerely,
George