Hi there Adam! Welcome back to the forums. 🙂
I see what you mean and that’s certainly odd. For example, this URL:
http://www.heritagehillsathleticclub.com/event/vinyasa-yoga-jackie/2014-11-04/
…seems to redirect to this URL:
http://www.heritagehillsathleticclub.com/success/all-my-expectations-were-exceeded-by-mindy-and-her-staff-at-phases-fitness/
It looks like you have the Yoast SEO plugin installed. Have you tried updating your site’s cache with that plugin? Do you have any redirect rules set in there that would be causing this to happen? Let’s start there and see where we get.
If it’s still an issue, we can try testing for conflicts with your installed plugins. Using the Twenty Fourteen theme, please try deactivating all of your plugins, except for the ones from Modern Tribe. Does that solve the problem? If so, reactivate the plugins one at a time until the issue pops back up, then tell me which one was causing the issue.
These steps are also outlined here if you want some more details on how to test for conflicts.
Give those steps a shot and let me know what you find.
Cheers!
Geoff