A couple of quick comments on the interface/UX from the peanut gallery…
When you switch from "Name" to "Date" sorting in the events tab, the TableView stays scrolled to the same index. It's a bit disorienting, as the relative index to the list has changed, but your position traversing it has not. In order to have any idea what's going on, you have to look at the cell's subtext, which is tiny and gray. Is this by design?
Maybe make it so a sorting change also brings you back to the top? This should be simple with a quick 'scrollToRowAtIndexPath:atScrollPosition:animated: '
Also, check out how we do event by date sorting on TBA. Breaking it up into weeks seems like a logical way to separate the events, and could be easily added with section headers.
http://www.thebluealliance.net/tbatv/
Now that I think of it, a third option to sort by region would by cool too!
Beyond those, this looks like an AWESOME app. Its almost exactly what I wanted to do with iBlueAlliance, which is currently just vaporware.