Show private competitions when finished
I think the "Recent competitions" on profiles should show the private competitions when they are finished. A long time ago, I had suggested not to show them in profiles, to avoid uninvited users from participating. This is always true, but it would eventually be more practical for the private competition's owner to see it on his profile in order to have easy access (yeah, sometimes you can lose the link of your own competition xD). In addition, this would also help moderators in checking profiles that have taken private competitions.
So ideally, the link should always be visible to the creator either before or after the end of his private competition, but all other users should be able to see it only when it is finished. There could be a way to differentiate between public and private competitions in the list like an icon and / or a different font formatting.