I have committed a little boo- boo on an event I sanctioned and need to cancel it. Do I have to wait until the day of the event before the option to cancel appears on my account page? I don't see an option to cancel the event as long as it has the "Future event" status. Is there a way? Thanks.
There actually is an option to cancel events before they come "due".
I believe it's under event reporting.
I tried that, but I get the "You do not have any events ready for reporting" message.
I saw a check box when I brought up "My Events" that said "Cancel", but I have no way of knowing which event it was talking about since I have a few upcoming events and only wanted to cancel the one I made a mistake on. I clicked the box, hoping that it would bring me to a dialogue asking me which event to cancel, but the screen just reloaded and I saw no apparent change. Later, I went back and the one I wanted to cancel was cancelled. However, I have no idea how I "selected" that event to be cancelled.
For future events that are cancellable, you should see a gray bar under the event information with the cancel (or, once the event has passed without reporting, a did not occur) option.
Each such event should have its own bar.
OK. I guess the Weekend in the Realms events are not cancellable, because they were listed right above the event I made the mistake on, yet there was only one grey bar.
Anyway, it all makes a little more sense to me now! Thanks! 
I'd like to second the request for a way to cancel the WitR2 gameday. Stuff has come up and there is no way I will be running it.
I'd like to second the request for a way to cancel the WitR2 gameday. Stuff has come up and there is no way I will be running it.
You might try using the Customer Service contact link to request that it be cancelled. They should be able to do it for you.