After more thought, I agree with toolman1 here. The process of keeping the calendar up to date is quite a tough one already, and it is definitely a fact that any 'other games' coverage will be very light.
I think that one of the factors that some users will utilize in deciding whether to add a listing or not is how comprehensive the current calendar seems. In other words, if I'm looking at a fairly comprehensive list of blackjack tournaments and I know about one that isn't listed, I'm more likely to take the time to add it because it is apparent that the calendar is a viable entity.
On the other hand, if I see a short list of only a handful of events, it is quite apparent that the majority of scheduled events are not listed. In that case, I would probably think it isn't worth the bother of adding just one more event to an obviously ineffective list.
We already have to fight this battle for blackjack. I'm certain we can't win it for other games.
The calendar here will remain for blackjack events only.
If you have information about an other game tournament that would be of interest to other users, feel free to post about it here in the Other Games forum.