Hi! Your own events will need 10 entries to run and will need to be at least 24 hours old. Once it meets these requirements, you will be able to run the event.
Events with lower entries (6+) will be run at a certain point, but I don't remember the details of when so I will let someone else answer that
![Smile :)](./images/smilies/icon_smile.gif)
I'm also not sure how old the auto-events are when they run.